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Implement NtAccessCheck.
[wine/gsoc-2012-control.git] / dlls / user / message.c
blob33aa87cf04f8662b6ca65402b48781f208abe531
1 /*
2 * Window messaging support
3 *
4 * Copyright 2001 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <assert.h>
25 #include <stdarg.h>
26
27 #include "ntstatus.h"
28 #include "windef.h"
29 #include "winbase.h"
30 #include "wingdi.h"
31 #include "winuser.h"
32 #include "winerror.h"
33 #include "winnls.h"
34 #include "dde.h"
35 #include "wine/unicode.h"
36 #include "wine/server.h"
37 #include "user_private.h"
38 #include "win.h"
39 #include "winpos.h"
40 #include "controls.h"
41 #include "winproc.h"
42 #include "wine/debug.h"
43
44 WINE_DEFAULT_DEBUG_CHANNEL(msg);
45 WINE_DECLARE_DEBUG_CHANNEL(relay);
46 WINE_DECLARE_DEBUG_CHANNEL(key);
47
48 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
49 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
50
51 #define MAX_PACK_COUNT 4
52 #define MAX_SENDMSG_RECURSION 64
53
54 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
55
56 /* description of the data fields that need to be packed along with a sent message */
57 struct packed_message
58 {
59 int count;
60 const void *data[MAX_PACK_COUNT];
61 size_t size[MAX_PACK_COUNT];
62 };
63
64 /* info about the message currently being received by the current thread */
65 struct received_message_info
66 {
67 enum message_type type;
68 MSG msg;
69 UINT flags; /* InSendMessageEx return flags */
70 HWINEVENTHOOK hook; /* winevent hook handle */
71 WINEVENTPROC hook_proc; /* winevent hook proc address */
72 };
73
74 /* structure to group all parameters for sent messages of the various kinds */
75 struct send_message_info
76 {
77 enum message_type type;
78 HWND hwnd;
79 UINT msg;
80 WPARAM wparam;
81 LPARAM lparam;
82 UINT flags; /* flags for SendMessageTimeout */
83 UINT timeout; /* timeout for SendMessageTimeout */
84 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
85 ULONG_PTR data; /* callback data */
86 };
87
88
89 /* flag for messages that contain pointers */
90 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
91
92 #define SET(msg) (1 << ((msg) & 31))
93
94 static const unsigned int message_pointer_flags[] =
95 {
96 /* 0x00 - 0x1f */
97 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
98 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
99 /* 0x20 - 0x3f */
100 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
101 SET(WM_COMPAREITEM),
102 /* 0x40 - 0x5f */
103 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
104 SET(WM_NOTIFY) | SET(WM_HELP),
105 /* 0x60 - 0x7f */
106 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
107 /* 0x80 - 0x9f */
108 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
109 /* 0xa0 - 0xbf */
110 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
111 /* 0xc0 - 0xdf */
112 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
113 /* 0xe0 - 0xff */
114 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
115 /* 0x100 - 0x11f */
116 0,
117 /* 0x120 - 0x13f */
118 0,
119 /* 0x140 - 0x15f */
120 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
121 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
122 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
123 /* 0x160 - 0x17f */
124 0,
125 /* 0x180 - 0x19f */
126 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
127 SET(LB_DIR) | SET(LB_FINDSTRING) |
128 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
129 /* 0x1a0 - 0x1bf */
130 SET(LB_FINDSTRINGEXACT),
131 /* 0x1c0 - 0x1df */
132 0,
133 /* 0x1e0 - 0x1ff */
134 0,
135 /* 0x200 - 0x21f */
136 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
137 /* 0x220 - 0x23f */
138 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
139 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
140 /* 0x240 - 0x25f */
141 0,
142 /* 0x260 - 0x27f */
143 0,
144 /* 0x280 - 0x29f */
145 0,
146 /* 0x2a0 - 0x2bf */
147 0,
148 /* 0x2c0 - 0x2df */
149 0,
150 /* 0x2e0 - 0x2ff */
151 0,
152 /* 0x300 - 0x31f */
153 SET(WM_ASKCBFORMATNAME)
154 };
155
156 /* flags for messages that contain Unicode strings */
157 static const unsigned int message_unicode_flags[] =
158 {
159 /* 0x00 - 0x1f */
160 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
161 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
162 /* 0x20 - 0x3f */
163 SET(WM_CHARTOITEM),
164 /* 0x40 - 0x5f */
165 0,
166 /* 0x60 - 0x7f */
167 0,
168 /* 0x80 - 0x9f */
169 SET(WM_NCCREATE),
170 /* 0xa0 - 0xbf */
171 0,
172 /* 0xc0 - 0xdf */
173 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
174 /* 0xe0 - 0xff */
175 0,
176 /* 0x100 - 0x11f */
177 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
178 /* 0x120 - 0x13f */
179 SET(WM_MENUCHAR),
180 /* 0x140 - 0x15f */
181 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
182 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
183 /* 0x160 - 0x17f */
184 0,
185 /* 0x180 - 0x19f */
186 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
187 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
188 /* 0x1a0 - 0x1bf */
189 SET(LB_FINDSTRINGEXACT),
190 /* 0x1c0 - 0x1df */
191 0,
192 /* 0x1e0 - 0x1ff */
193 0,
194 /* 0x200 - 0x21f */
195 0,
196 /* 0x220 - 0x23f */
197 SET(WM_MDICREATE),
198 /* 0x240 - 0x25f */
199 0,
200 /* 0x260 - 0x27f */
201 0,
202 /* 0x280 - 0x29f */
203 SET(WM_IME_CHAR),
204 /* 0x2a0 - 0x2bf */
205 0,
206 /* 0x2c0 - 0x2df */
207 0,
208 /* 0x2e0 - 0x2ff */
209 0,
210 /* 0x300 - 0x31f */
211 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
212 };
213
214 /* check whether a given message type includes pointers */
215 inline static int is_pointer_message( UINT message )
216 {
217 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
218 return (message_pointer_flags[message / 32] & SET(message)) != 0;
219 }
220
221 /* check whether a given message type contains Unicode (or ASCII) chars */
222 inline static int is_unicode_message( UINT message )
223 {
224 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
225 return (message_unicode_flags[message / 32] & SET(message)) != 0;
226 }
227
228 #undef SET
229
230 /* add a data field to a packed message */
231 inline static void push_data( struct packed_message *data, const void *ptr, size_t size )
232 {
233 data->data[data->count] = ptr;
234 data->size[data->count] = size;
235 data->count++;
236 }
237
238 /* add a string to a packed message */
239 inline static void push_string( struct packed_message *data, LPCWSTR str )
240 {
241 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
242 }
243
244 /* retrieve a pointer to data from a packed message and increment the buffer pointer */
245 inline static void *get_data( void **buffer, size_t size )
246 {
247 void *ret = *buffer;
248 *buffer = (char *)*buffer + size;
249 return ret;
250 }
251
252 /* make sure that the buffer contains a valid null-terminated Unicode string */
253 inline static BOOL check_string( LPCWSTR str, size_t size )
254 {
255 for (size /= sizeof(WCHAR); size; size--, str++)
256 if (!*str) return TRUE;
257 return FALSE;
258 }
259
260 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
261 inline static void *get_buffer_space( void **buffer, size_t size )
262 {
263 void *ret;
264
265 if (*buffer)
266 {
267 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
268 HeapFree( GetProcessHeap(), 0, *buffer );
269 }
270 else ret = HeapAlloc( GetProcessHeap(), 0, size );
271
272 *buffer = ret;
273 return ret;
274 }
275
276 /* retrieve a string pointer from packed data */
277 inline static LPWSTR get_string( void **buffer )
278 {
279 return get_data( buffer, (strlenW( (LPWSTR)*buffer ) + 1) * sizeof(WCHAR) );
280 }
281
282 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
283 inline static BOOL combobox_has_strings( HWND hwnd )
284 {
285 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
286 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
287 }
288
289 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
290 inline static BOOL listbox_has_strings( HWND hwnd )
291 {
292 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
293 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
294 }
295
296 /* check whether message is in the range of keyboard messages */
297 inline static BOOL is_keyboard_message( UINT message )
298 {
299 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
300 }
301
302 /* check whether message is in the range of mouse messages */
303 inline static BOOL is_mouse_message( UINT message )
304 {
305 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
306 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
307 }
308
309 /* check whether message matches the specified hwnd filter */
310 inline static BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
311 {
312 if (!hwnd_filter) return TRUE;
313 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
314 }
315
316
317 /***********************************************************************
318 * broadcast_message_callback
319 *
320 * Helper callback for broadcasting messages.
321 */
322 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
323 {
324 struct send_message_info *info = (struct send_message_info *)lparam;
325 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
326 switch(info->type)
327 {
328 case MSG_UNICODE:
329 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
330 info->flags, info->timeout, NULL );
331 break;
332 case MSG_ASCII:
333 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
334 info->flags, info->timeout, NULL );
335 break;
336 case MSG_NOTIFY:
337 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
338 break;
339 case MSG_CALLBACK:
340 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
341 info->callback, info->data );
342 break;
343 case MSG_POSTED:
344 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
345 break;
346 default:
347 ERR( "bad type %d\n", info->type );
348 break;
349 }
350 return TRUE;
351 }
352
353
354 /***********************************************************************
355 * map_wparam_AtoW
356 *
357 * Convert the wparam of an ASCII message to Unicode.
358 */
359 static WPARAM map_wparam_AtoW( UINT message, WPARAM wparam )
360 {
361 switch(message)
362 {
363 case WM_CHARTOITEM:
364 case EM_SETPASSWORDCHAR:
365 case WM_CHAR:
366 case WM_DEADCHAR:
367 case WM_SYSCHAR:
368 case WM_SYSDEADCHAR:
369 case WM_MENUCHAR:
370 {
371 char ch = LOWORD(wparam);
372 WCHAR wch;
373 MultiByteToWideChar(CP_ACP, 0, &ch, 1, &wch, 1);
374 wparam = MAKEWPARAM( wch, HIWORD(wparam) );
375 }
376 break;
377 case WM_IME_CHAR:
378 {
379 char ch[2];
380 WCHAR wch;
381 ch[0] = (wparam >> 8);
382 ch[1] = (wparam & 0xff);
383 if (ch[0]) MultiByteToWideChar(CP_ACP, 0, ch, 2, &wch, 1);
384 else MultiByteToWideChar(CP_ACP, 0, &ch[1], 1, &wch, 1);
385 wparam = MAKEWPARAM( wch, HIWORD(wparam) );
386 }
387 break;
388 }
389 return wparam;
390 }
391
392
393 /***********************************************************************
394 * map_wparam_WtoA
395 *
396 * Convert the wparam of a Unicode message to ASCII.
397 */
398 static WPARAM map_wparam_WtoA( UINT message, WPARAM wparam )
399 {
400 switch(message)
401 {
402 case WM_CHARTOITEM:
403 case EM_SETPASSWORDCHAR:
404 case WM_CHAR:
405 case WM_DEADCHAR:
406 case WM_SYSCHAR:
407 case WM_SYSDEADCHAR:
408 case WM_MENUCHAR:
409 {
410 WCHAR wch = LOWORD(wparam);
411 BYTE ch;
412 WideCharToMultiByte( CP_ACP, 0, &wch, 1, &ch, 1, NULL, NULL );
413 wparam = MAKEWPARAM( ch, HIWORD(wparam) );
414 }
415 break;
416 case WM_IME_CHAR:
417 {
418 WCHAR wch = LOWORD(wparam);
419 BYTE ch[2];
420
421 if (WideCharToMultiByte( CP_ACP, 0, &wch, 1, ch, 2, NULL, NULL ) == 2)
422 wparam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(wparam) );
423 else
424 wparam = MAKEWPARAM( ch[0], HIWORD(wparam) );
425 }
426 break;
427 }
428 return wparam;
429 }
430
431
432 /***********************************************************************
433 * pack_message
434 *
435 * Pack a message for sending to another process.
436 * Return the size of the data we expect in the message reply.
437 * Set data->count to -1 if there is an error.
438 */
439 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
440 struct packed_message *data )
441 {
442 data->count = 0;
443 switch(message)
444 {
445 case WM_NCCREATE:
446 case WM_CREATE:
447 {
448 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
449 push_data( data, cs, sizeof(*cs) );
450 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
451 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
452 return sizeof(*cs);
453 }
454 case WM_GETTEXT:
455 case WM_ASKCBFORMATNAME:
456 return wparam * sizeof(WCHAR);
457 case WM_WININICHANGE:
458 if (lparam) push_string(data, (LPWSTR)lparam );
459 return 0;
460 case WM_SETTEXT:
461 case WM_DEVMODECHANGE:
462 case CB_DIR:
463 case LB_DIR:
464 case LB_ADDFILE:
465 case EM_REPLACESEL:
466 push_string( data, (LPWSTR)lparam );
467 return 0;
468 case WM_GETMINMAXINFO:
469 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
470 return sizeof(MINMAXINFO);
471 case WM_DRAWITEM:
472 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
473 return 0;
474 case WM_MEASUREITEM:
475 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
476 return sizeof(MEASUREITEMSTRUCT);
477 case WM_DELETEITEM:
478 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
479 return 0;
480 case WM_COMPAREITEM:
481 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
482 return 0;
483 case WM_WINDOWPOSCHANGING:
484 case WM_WINDOWPOSCHANGED:
485 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
486 return sizeof(WINDOWPOS);
487 case WM_COPYDATA:
488 {
489 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
490 push_data( data, cp, sizeof(*cp) );
491 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
492 return 0;
493 }
494 case WM_NOTIFY:
495 /* WM_NOTIFY cannot be sent across processes (MSDN) */
496 data->count = -1;
497 return 0;
498 case WM_HELP:
499 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
500 return 0;
501 case WM_STYLECHANGING:
502 case WM_STYLECHANGED:
503 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
504 return 0;
505 case WM_NCCALCSIZE:
506 if (!wparam)
507 {
508 push_data( data, (RECT *)lparam, sizeof(RECT) );
509 return sizeof(RECT);
510 }
511 else
512 {
513 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
514 push_data( data, nc, sizeof(*nc) );
515 push_data( data, nc->lppos, sizeof(*nc->lppos) );
516 return sizeof(*nc) + sizeof(*nc->lppos);
517 }
518 case WM_GETDLGCODE:
519 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
520 return sizeof(MSG);
521 case SBM_SETSCROLLINFO:
522 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
523 return 0;
524 case SBM_GETSCROLLINFO:
525 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
526 return sizeof(SCROLLINFO);
527 case SBM_GETSCROLLBARINFO:
528 {
529 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
530 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
531 push_data( data, info, size );
532 return size;
533 }
534 case EM_GETSEL:
535 case SBM_GETRANGE:
536 case CB_GETEDITSEL:
537 {
538 size_t size = 0;
539 if (wparam) size += sizeof(DWORD);
540 if (lparam) size += sizeof(DWORD);
541 return size;
542 }
543 case EM_GETRECT:
544 case LB_GETITEMRECT:
545 case CB_GETDROPPEDCONTROLRECT:
546 return sizeof(RECT);
547 case EM_SETRECT:
548 case EM_SETRECTNP:
549 push_data( data, (RECT *)lparam, sizeof(RECT) );
550 return 0;
551 case EM_GETLINE:
552 {
553 WORD *pw = (WORD *)lparam;
554 push_data( data, pw, sizeof(*pw) );
555 return *pw * sizeof(WCHAR);
556 }
557 case EM_SETTABSTOPS:
558 case LB_SETTABSTOPS:
559 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
560 return 0;
561 case CB_ADDSTRING:
562 case CB_INSERTSTRING:
563 case CB_FINDSTRING:
564 case CB_FINDSTRINGEXACT:
565 case CB_SELECTSTRING:
566 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
567 return 0;
568 case CB_GETLBTEXT:
569 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
570 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
571 case LB_ADDSTRING:
572 case LB_INSERTSTRING:
573 case LB_FINDSTRING:
574 case LB_FINDSTRINGEXACT:
575 case LB_SELECTSTRING:
576 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
577 return 0;
578 case LB_GETTEXT:
579 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
580 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
581 case LB_GETSELITEMS:
582 return wparam * sizeof(UINT);
583 case WM_NEXTMENU:
584 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
585 return sizeof(MDINEXTMENU);
586 case WM_SIZING:
587 case WM_MOVING:
588 push_data( data, (RECT *)lparam, sizeof(RECT) );
589 return sizeof(RECT);
590 case WM_MDICREATE:
591 {
592 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
593 push_data( data, cs, sizeof(*cs) );
594 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
595 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
596 return sizeof(*cs);
597 }
598 case WM_MDIGETACTIVE:
599 if (lparam) return sizeof(BOOL);
600 return 0;
601 case WM_WINE_SETWINDOWPOS:
602 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
603 return 0;
604 case WM_WINE_KEYBOARD_LL_HOOK:
605 push_data( data, (KBDLLHOOKSTRUCT *)lparam, sizeof(KBDLLHOOKSTRUCT) );
606 return 0;
607 case WM_WINE_MOUSE_LL_HOOK:
608 push_data( data, (MSLLHOOKSTRUCT *)lparam, sizeof(MSLLHOOKSTRUCT) );
609 return 0;
610 case WM_PAINT:
611 if (!wparam) return 0;
612 /* fall through */
613
614 /* these contain an HFONT */
615 case WM_SETFONT:
616 case WM_GETFONT:
617 /* these contain an HDC */
618 case WM_ERASEBKGND:
619 case WM_ICONERASEBKGND:
620 case WM_NCPAINT:
621 case WM_CTLCOLORMSGBOX:
622 case WM_CTLCOLOREDIT:
623 case WM_CTLCOLORLISTBOX:
624 case WM_CTLCOLORBTN:
625 case WM_CTLCOLORDLG:
626 case WM_CTLCOLORSCROLLBAR:
627 case WM_CTLCOLORSTATIC:
628 case WM_PRINT:
629 case WM_PRINTCLIENT:
630 /* these contain an HGLOBAL */
631 case WM_PAINTCLIPBOARD:
632 case WM_SIZECLIPBOARD:
633 /* these contain HICON */
634 case WM_GETICON:
635 case WM_SETICON:
636 case WM_QUERYDRAGICON:
637 case WM_QUERYPARKICON:
638 /* these contain pointers */
639 case WM_DROPOBJECT:
640 case WM_QUERYDROPOBJECT:
641 case WM_DRAGLOOP:
642 case WM_DRAGSELECT:
643 case WM_DRAGMOVE:
644 case WM_DEVICECHANGE:
645 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
646 data->count = -1;
647 return 0;
648 }
649 return 0;
650 }
651
652
653 /***********************************************************************
654 * unpack_message
655 *
656 * Unpack a message received from another process.
657 */
658 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
659 void **buffer, size_t size )
660 {
661 size_t minsize = 0;
662
663 switch(message)
664 {
665 case WM_NCCREATE:
666 case WM_CREATE:
667 {
668 CREATESTRUCTW *cs = *buffer;
669 WCHAR *str = (WCHAR *)(cs + 1);
670 if (size < sizeof(*cs)) return FALSE;
671 size -= sizeof(*cs);
672 if (HIWORD(cs->lpszName))
673 {
674 if (!check_string( str, size )) return FALSE;
675 cs->lpszName = str;
676 size -= (strlenW(str) + 1) * sizeof(WCHAR);
677 str += strlenW(str) + 1;
678 }
679 if (HIWORD(cs->lpszClass))
680 {
681 if (!check_string( str, size )) return FALSE;
682 cs->lpszClass = str;
683 }
684 break;
685 }
686 case WM_GETTEXT:
687 case WM_ASKCBFORMATNAME:
688 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
689 break;
690 case WM_WININICHANGE:
691 if (!*lparam) return TRUE;
692 /* fall through */
693 case WM_SETTEXT:
694 case WM_DEVMODECHANGE:
695 case CB_DIR:
696 case LB_DIR:
697 case LB_ADDFILE:
698 case EM_REPLACESEL:
699 if (!check_string( *buffer, size )) return FALSE;
700 break;
701 case WM_GETMINMAXINFO:
702 minsize = sizeof(MINMAXINFO);
703 break;
704 case WM_DRAWITEM:
705 minsize = sizeof(DRAWITEMSTRUCT);
706 break;
707 case WM_MEASUREITEM:
708 minsize = sizeof(MEASUREITEMSTRUCT);
709 break;
710 case WM_DELETEITEM:
711 minsize = sizeof(DELETEITEMSTRUCT);
712 break;
713 case WM_COMPAREITEM:
714 minsize = sizeof(COMPAREITEMSTRUCT);
715 break;
716 case WM_WINDOWPOSCHANGING:
717 case WM_WINDOWPOSCHANGED:
718 case WM_WINE_SETWINDOWPOS:
719 minsize = sizeof(WINDOWPOS);
720 break;
721 case WM_COPYDATA:
722 {
723 COPYDATASTRUCT *cp = *buffer;
724 if (size < sizeof(*cp)) return FALSE;
725 if (cp->lpData)
726 {
727 minsize = sizeof(*cp) + cp->cbData;
728 cp->lpData = cp + 1;
729 }
730 break;
731 }
732 case WM_NOTIFY:
733 /* WM_NOTIFY cannot be sent across processes (MSDN) */
734 return FALSE;
735 case WM_HELP:
736 minsize = sizeof(HELPINFO);
737 break;
738 case WM_STYLECHANGING:
739 case WM_STYLECHANGED:
740 minsize = sizeof(STYLESTRUCT);
741 break;
742 case WM_NCCALCSIZE:
743 if (!*wparam) minsize = sizeof(RECT);
744 else
745 {
746 NCCALCSIZE_PARAMS *nc = *buffer;
747 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
748 nc->lppos = (WINDOWPOS *)(nc + 1);
749 }
750 break;
751 case WM_GETDLGCODE:
752 if (!*lparam) return TRUE;
753 minsize = sizeof(MSG);
754 break;
755 case SBM_SETSCROLLINFO:
756 minsize = sizeof(SCROLLINFO);
757 break;
758 case SBM_GETSCROLLINFO:
759 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
760 break;
761 case SBM_GETSCROLLBARINFO:
762 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
763 break;
764 case EM_GETSEL:
765 case SBM_GETRANGE:
766 case CB_GETEDITSEL:
767 if (*wparam || *lparam)
768 {
769 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
770 if (*wparam) *wparam = (WPARAM)*buffer;
771 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
772 }
773 return TRUE;
774 case EM_GETRECT:
775 case LB_GETITEMRECT:
776 case CB_GETDROPPEDCONTROLRECT:
777 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
778 break;
779 case EM_SETRECT:
780 case EM_SETRECTNP:
781 minsize = sizeof(RECT);
782 break;
783 case EM_GETLINE:
784 {
785 WORD len;
786 if (size < sizeof(WORD)) return FALSE;
787 len = *(WORD *)*buffer;
788 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
789 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
790 return TRUE;
791 }
792 case EM_SETTABSTOPS:
793 case LB_SETTABSTOPS:
794 if (!*wparam) return TRUE;
795 minsize = *wparam * sizeof(UINT);
796 break;
797 case CB_ADDSTRING:
798 case CB_INSERTSTRING:
799 case CB_FINDSTRING:
800 case CB_FINDSTRINGEXACT:
801 case CB_SELECTSTRING:
802 case LB_ADDSTRING:
803 case LB_INSERTSTRING:
804 case LB_FINDSTRING:
805 case LB_FINDSTRINGEXACT:
806 case LB_SELECTSTRING:
807 if (!*buffer) return TRUE;
808 if (!check_string( *buffer, size )) return FALSE;
809 break;
810 case CB_GETLBTEXT:
811 {
812 size = sizeof(ULONG_PTR);
813 if (combobox_has_strings( hwnd ))
814 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
815 if (!get_buffer_space( buffer, size )) return FALSE;
816 break;
817 }
818 case LB_GETTEXT:
819 {
820 size = sizeof(ULONG_PTR);
821 if (listbox_has_strings( hwnd ))
822 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
823 if (!get_buffer_space( buffer, size )) return FALSE;
824 break;
825 }
826 case LB_GETSELITEMS:
827 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
828 break;
829 case WM_NEXTMENU:
830 minsize = sizeof(MDINEXTMENU);
831 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
832 break;
833 case WM_SIZING:
834 case WM_MOVING:
835 minsize = sizeof(RECT);
836 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
837 break;
838 case WM_MDICREATE:
839 {
840 MDICREATESTRUCTW *cs = *buffer;
841 WCHAR *str = (WCHAR *)(cs + 1);
842 if (size < sizeof(*cs)) return FALSE;
843 size -= sizeof(*cs);
844 if (HIWORD(cs->szTitle))
845 {
846 if (!check_string( str, size )) return FALSE;
847 cs->szTitle = str;
848 size -= (strlenW(str) + 1) * sizeof(WCHAR);
849 str += strlenW(str) + 1;
850 }
851 if (HIWORD(cs->szClass))
852 {
853 if (!check_string( str, size )) return FALSE;
854 cs->szClass = str;
855 }
856 break;
857 }
858 case WM_MDIGETACTIVE:
859 if (!*lparam) return TRUE;
860 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
861 break;
862 case WM_WINE_KEYBOARD_LL_HOOK:
863 minsize = sizeof(KBDLLHOOKSTRUCT);
864 break;
865 case WM_WINE_MOUSE_LL_HOOK:
866 minsize = sizeof(MSLLHOOKSTRUCT);
867 break;
868 case WM_PAINT:
869 if (!*wparam) return TRUE;
870 /* fall through */
871
872 /* these contain an HFONT */
873 case WM_SETFONT:
874 case WM_GETFONT:
875 /* these contain an HDC */
876 case WM_ERASEBKGND:
877 case WM_ICONERASEBKGND:
878 case WM_NCPAINT:
879 case WM_CTLCOLORMSGBOX:
880 case WM_CTLCOLOREDIT:
881 case WM_CTLCOLORLISTBOX:
882 case WM_CTLCOLORBTN:
883 case WM_CTLCOLORDLG:
884 case WM_CTLCOLORSCROLLBAR:
885 case WM_CTLCOLORSTATIC:
886 case WM_PRINT:
887 case WM_PRINTCLIENT:
888 /* these contain an HGLOBAL */
889 case WM_PAINTCLIPBOARD:
890 case WM_SIZECLIPBOARD:
891 /* these contain HICON */
892 case WM_GETICON:
893 case WM_SETICON:
894 case WM_QUERYDRAGICON:
895 case WM_QUERYPARKICON:
896 /* these contain pointers */
897 case WM_DROPOBJECT:
898 case WM_QUERYDROPOBJECT:
899 case WM_DRAGLOOP:
900 case WM_DRAGSELECT:
901 case WM_DRAGMOVE:
902 case WM_DEVICECHANGE:
903 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
904 return FALSE;
905
906 default:
907 return TRUE; /* message doesn't need any unpacking */
908 }
909
910 /* default exit for most messages: check minsize and store buffer in lparam */
911 if (size < minsize) return FALSE;
912 *lparam = (LPARAM)*buffer;
913 return TRUE;
914 }
915
916
917 /***********************************************************************
918 * pack_reply
919 *
920 * Pack a reply to a message for sending to another process.
921 */
922 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
923 LRESULT res, struct packed_message *data )
924 {
925 data->count = 0;
926 switch(message)
927 {
928 case WM_NCCREATE:
929 case WM_CREATE:
930 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
931 break;
932 case WM_GETTEXT:
933 case CB_GETLBTEXT:
934 case LB_GETTEXT:
935 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
936 break;
937 case WM_GETMINMAXINFO:
938 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
939 break;
940 case WM_MEASUREITEM:
941 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
942 break;
943 case WM_WINDOWPOSCHANGING:
944 case WM_WINDOWPOSCHANGED:
945 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
946 break;
947 case WM_GETDLGCODE:
948 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
949 break;
950 case SBM_GETSCROLLINFO:
951 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
952 break;
953 case EM_GETRECT:
954 case LB_GETITEMRECT:
955 case CB_GETDROPPEDCONTROLRECT:
956 case WM_SIZING:
957 case WM_MOVING:
958 push_data( data, (RECT *)lparam, sizeof(RECT) );
959 break;
960 case EM_GETLINE:
961 {
962 WORD *ptr = (WORD *)lparam;
963 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
964 break;
965 }
966 case LB_GETSELITEMS:
967 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
968 break;
969 case WM_MDIGETACTIVE:
970 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
971 break;
972 case WM_NCCALCSIZE:
973 if (!wparam)
974 push_data( data, (RECT *)lparam, sizeof(RECT) );
975 else
976 {
977 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
978 push_data( data, nc, sizeof(*nc) );
979 push_data( data, nc->lppos, sizeof(*nc->lppos) );
980 }
981 break;
982 case EM_GETSEL:
983 case SBM_GETRANGE:
984 case CB_GETEDITSEL:
985 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
986 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
987 break;
988 case WM_NEXTMENU:
989 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
990 break;
991 case WM_MDICREATE:
992 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
993 break;
994 case WM_ASKCBFORMATNAME:
995 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
996 break;
997 }
998 }
999
1000
1001 /***********************************************************************
1002 * unpack_reply
1003 *
1004 * Unpack a message reply received from another process.
1005 */
1006 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1007 void *buffer, size_t size )
1008 {
1009 switch(message)
1010 {
1011 case WM_NCCREATE:
1012 case WM_CREATE:
1013 {
1014 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1015 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1016 memcpy( cs, buffer, min( sizeof(*cs), size ));
1017 cs->lpszName = name; /* restore the original pointers */
1018 cs->lpszClass = class;
1019 break;
1020 }
1021 case WM_GETTEXT:
1022 case WM_ASKCBFORMATNAME:
1023 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1024 break;
1025 case WM_GETMINMAXINFO:
1026 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1027 break;
1028 case WM_MEASUREITEM:
1029 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1030 break;
1031 case WM_WINDOWPOSCHANGING:
1032 case WM_WINDOWPOSCHANGED:
1033 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1034 break;
1035 case WM_GETDLGCODE:
1036 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1037 break;
1038 case SBM_GETSCROLLINFO:
1039 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1040 break;
1041 case SBM_GETSCROLLBARINFO:
1042 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1043 break;
1044 case EM_GETRECT:
1045 case CB_GETDROPPEDCONTROLRECT:
1046 case LB_GETITEMRECT:
1047 case WM_SIZING:
1048 case WM_MOVING:
1049 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1050 break;
1051 case EM_GETLINE:
1052 size = min( size, (size_t)*(WORD *)lparam );
1053 memcpy( (WCHAR *)lparam, buffer, size );
1054 break;
1055 case LB_GETSELITEMS:
1056 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1057 break;
1058 case LB_GETTEXT:
1059 case CB_GETLBTEXT:
1060 memcpy( (WCHAR *)lparam, buffer, size );
1061 break;
1062 case WM_NEXTMENU:
1063 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1064 break;
1065 case WM_MDIGETACTIVE:
1066 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1067 break;
1068 case WM_NCCALCSIZE:
1069 if (!wparam)
1070 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1071 else
1072 {
1073 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1074 WINDOWPOS *wp = nc->lppos;
1075 memcpy( nc, buffer, min( sizeof(*nc), size ));
1076 if (size > sizeof(*nc))
1077 {
1078 size -= sizeof(*nc);
1079 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1080 }
1081 nc->lppos = wp; /* restore the original pointer */
1082 }
1083 break;
1084 case EM_GETSEL:
1085 case SBM_GETRANGE:
1086 case CB_GETEDITSEL:
1087 if (wparam)
1088 {
1089 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1090 if (size <= sizeof(DWORD)) break;
1091 size -= sizeof(DWORD);
1092 buffer = (DWORD *)buffer + 1;
1093 }
1094 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1095 break;
1096 case WM_MDICREATE:
1097 {
1098 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1099 LPCWSTR title = cs->szTitle, class = cs->szClass;
1100 memcpy( cs, buffer, min( sizeof(*cs), size ));
1101 cs->szTitle = title; /* restore the original pointers */
1102 cs->szClass = class;
1103 break;
1104 }
1105 default:
1106 ERR( "should not happen: unexpected message %x\n", message );
1107 break;
1108 }
1109 }
1110
1111
1112 /***********************************************************************
1113 * reply_message
1114 *
1115 * Send a reply to a sent message.
1116 */
1117 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1118 {
1119 struct packed_message data;
1120 int i, replied = info->flags & ISMEX_REPLIED;
1121
1122 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1123 if (!remove && replied) return; /* replied already */
1124
1125 data.count = 0;
1126 info->flags |= ISMEX_REPLIED;
1127
1128 if (info->type == MSG_OTHER_PROCESS && !replied)
1129 {
1130 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1131 info->msg.lParam, result, &data );
1132 }
1133
1134 SERVER_START_REQ( reply_message )
1135 {
1136 req->result = result;
1137 req->remove = remove;
1138 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1139 wine_server_call( req );
1140 }
1141 SERVER_END_REQ;
1142 }
1143
1144
1145 /***********************************************************************
1146 * handle_internal_message
1147 *
1148 * Handle an internal Wine message instead of calling the window proc.
1149 */
1150 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1151 {
1152 if (hwnd == GetDesktopWindow()) return 0;
1153 switch(msg)
1154 {
1155 case WM_WINE_DESTROYWINDOW:
1156 return WIN_DestroyWindow( hwnd );
1157 case WM_WINE_SETWINDOWPOS:
1158 if (USER_Driver.pSetWindowPos)
1159 return USER_Driver.pSetWindowPos( (WINDOWPOS *)lparam );
1160 return 0;
1161 case WM_WINE_SHOWWINDOW:
1162 return ShowWindow( hwnd, wparam );
1163 case WM_WINE_SETPARENT:
1164 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1165 case WM_WINE_SETWINDOWLONG:
1166 return (LRESULT)SetWindowLongW( hwnd, wparam, lparam );
1167 case WM_WINE_ENABLEWINDOW:
1168 return EnableWindow( hwnd, wparam );
1169 case WM_WINE_SETACTIVEWINDOW:
1170 return (LRESULT)SetActiveWindow( (HWND)wparam );
1171 case WM_WINE_KEYBOARD_LL_HOOK:
1172 return HOOK_CallHooks( WH_KEYBOARD_LL, HC_ACTION, wparam, lparam, TRUE );
1173 case WM_WINE_MOUSE_LL_HOOK:
1174 return HOOK_CallHooks( WH_MOUSE_LL, HC_ACTION, wparam, lparam, TRUE );
1175 default:
1176 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1177 {
1178 if (!USER_Driver.pWindowMessage) return 0;
1179 return USER_Driver.pWindowMessage( hwnd, msg, wparam, lparam );
1180 }
1181 FIXME( "unknown internal message %x\n", msg );
1182 return 0;
1183 }
1184 }
1185
1186 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1187 * to the memory handle, we keep track (in the server side) of all pairs of handle
1188 * used (the client passes its value and the content of the memory handle), and
1189 * the server stored both values (the client, and the local one, created after the
1190 * content). When a ACK message is generated, the list of pair is searched for a
1191 * matching pair, so that the client memory handle can be returned.
1192 */
1193 struct DDE_pair {
1194 HGLOBAL client_hMem;
1195 HGLOBAL server_hMem;
1196 };
1197
1198 static struct DDE_pair* dde_pairs;
1199 static int dde_num_alloc;
1200 static int dde_num_used;
1201
1202 static CRITICAL_SECTION dde_crst;
1203 static CRITICAL_SECTION_DEBUG critsect_debug =
1204 {
1205 0, 0, &dde_crst,
1206 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1207 0, 0, { 0, (DWORD)(__FILE__ ": dde_crst") }
1208 };
1209 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1210
1211 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1212 {
1213 int i;
1214 #define GROWBY 4
1215
1216 EnterCriticalSection(&dde_crst);
1217
1218 /* now remember the pair of hMem on both sides */
1219 if (dde_num_used == dde_num_alloc)
1220 {
1221 struct DDE_pair* tmp;
1222 if (dde_pairs)
1223 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1224 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1225 else
1226 tmp = HeapAlloc( GetProcessHeap(), 0,
1227 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1228
1229 if (!tmp)
1230 {
1231 LeaveCriticalSection(&dde_crst);
1232 return FALSE;
1233 }
1234 dde_pairs = tmp;
1235 /* zero out newly allocated part */
1236 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1237 dde_num_alloc += GROWBY;
1238 }
1239 #undef GROWBY
1240 for (i = 0; i < dde_num_alloc; i++)
1241 {
1242 if (dde_pairs[i].server_hMem == 0)
1243 {
1244 dde_pairs[i].client_hMem = chm;
1245 dde_pairs[i].server_hMem = shm;
1246 dde_num_used++;
1247 break;
1248 }
1249 }
1250 LeaveCriticalSection(&dde_crst);
1251 return TRUE;
1252 }
1253
1254 static HGLOBAL dde_get_pair(HGLOBAL shm)
1255 {
1256 int i;
1257 HGLOBAL ret = 0;
1258
1259 EnterCriticalSection(&dde_crst);
1260 for (i = 0; i < dde_num_alloc; i++)
1261 {
1262 if (dde_pairs[i].server_hMem == shm)
1263 {
1264 /* free this pair */
1265 dde_pairs[i].server_hMem = 0;
1266 dde_num_used--;
1267 ret = dde_pairs[i].client_hMem;
1268 break;
1269 }
1270 }
1271 LeaveCriticalSection(&dde_crst);
1272 return ret;
1273 }
1274
1275 /***********************************************************************
1276 * post_dde_message
1277 *
1278 * Post a DDE message
1279 */
1280 static BOOL post_dde_message( DWORD dest_tid, struct packed_message *data, const struct send_message_info *info )
1281 {
1282 void* ptr = NULL;
1283 int size = 0;
1284 UINT uiLo, uiHi;
1285 LPARAM lp = 0;
1286 HGLOBAL hunlock = 0;
1287 int i;
1288 DWORD res;
1289
1290 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1291 return FALSE;
1292
1293 lp = info->lparam;
1294 switch (info->msg)
1295 {
1296 /* DDE messages which don't require packing are:
1297 * WM_DDE_INITIATE
1298 * WM_DDE_TERMINATE
1299 * WM_DDE_REQUEST
1300 * WM_DDE_UNADVISE
1301 */
1302 case WM_DDE_ACK:
1303 if (HIWORD(uiHi))
1304 {
1305 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1306 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1307 if (h)
1308 {
1309 /* send back the value of h on the other side */
1310 push_data( data, &h, sizeof(HGLOBAL) );
1311 lp = uiLo;
1312 TRACE( "send dde-ack %x %08x => %08lx\n", uiLo, uiHi, (DWORD)h );
1313 }
1314 }
1315 else
1316 {
1317 /* uiHi should contain either an atom or 0 */
1318 TRACE( "send dde-ack %x atom=%x\n", uiLo, uiHi );
1319 lp = MAKELONG( uiLo, uiHi );
1320 }
1321 break;
1322 case WM_DDE_ADVISE:
1323 case WM_DDE_DATA:
1324 case WM_DDE_POKE:
1325 size = 0;
1326 if (uiLo)
1327 {
1328 size = GlobalSize( (HGLOBAL)uiLo ) ;
1329 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1330 (info->msg == WM_DDE_DATA && size < sizeof(DDEDATA)) ||
1331 (info->msg == WM_DDE_POKE && size < sizeof(DDEPOKE))
1332 )
1333 return FALSE;
1334 }
1335 else if (info->msg != WM_DDE_DATA) return FALSE;
1336
1337 lp = uiHi;
1338 if (uiLo)
1339 {
1340 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1341 {
1342 DDEDATA *dde_data = (DDEDATA *)ptr;
1343 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1344 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1345 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1346 push_data( data, ptr, size );
1347 hunlock = (HGLOBAL)uiLo;
1348 }
1349 }
1350 TRACE( "send ddepack %u %x\n", size, uiHi );
1351 break;
1352 case WM_DDE_EXECUTE:
1353 if (info->lparam)
1354 {
1355 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1356 {
1357 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1358 /* so that the other side can send it back on ACK */
1359 lp = info->lparam;
1360 hunlock = (HGLOBAL)info->lparam;
1361 }
1362 }
1363 break;
1364 }
1365 SERVER_START_REQ( send_message )
1366 {
1367 req->id = dest_tid;
1368 req->type = info->type;
1369 req->flags = 0;
1370 req->win = info->hwnd;
1371 req->msg = info->msg;
1372 req->wparam = info->wparam;
1373 req->lparam = lp;
1374 req->time = GetCurrentTime();
1375 req->timeout = -1;
1376 for (i = 0; i < data->count; i++)
1377 wine_server_add_data( req, data->data[i], data->size[i] );
1378 if ((res = wine_server_call( req )))
1379 {
1380 if (res == STATUS_INVALID_PARAMETER)
1381 /* FIXME: find a STATUS_ value for this one */
1382 SetLastError( ERROR_INVALID_THREAD_ID );
1383 else
1384 SetLastError( RtlNtStatusToDosError(res) );
1385 }
1386 else
1387 FreeDDElParam(info->msg, info->lparam);
1388 }
1389 SERVER_END_REQ;
1390 if (hunlock) GlobalUnlock(hunlock);
1391
1392 return !res;
1393 }
1394
1395 /***********************************************************************
1396 * unpack_dde_message
1397 *
1398 * Unpack a posted DDE message received from another process.
1399 */
1400 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1401 void **buffer, size_t size )
1402 {
1403 UINT uiLo, uiHi;
1404 HGLOBAL hMem = 0;
1405 void* ptr;
1406
1407 switch (message)
1408 {
1409 case WM_DDE_ACK:
1410 if (size)
1411 {
1412 /* hMem is being passed */
1413 if (size != sizeof(HGLOBAL)) return FALSE;
1414 if (!buffer || !*buffer) return FALSE;
1415 uiLo = *lparam;
1416 memcpy( &hMem, *buffer, size );
1417 uiHi = (UINT)hMem;
1418 TRACE("recv dde-ack %x mem=%x[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1419 }
1420 else
1421 {
1422 uiLo = LOWORD( *lparam );
1423 uiHi = HIWORD( *lparam );
1424 TRACE("recv dde-ack %x atom=%x\n", uiLo, uiHi);
1425 }
1426 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1427 break;
1428 case WM_DDE_ADVISE:
1429 case WM_DDE_DATA:
1430 case WM_DDE_POKE:
1431 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1432 uiHi = *lparam;
1433 TRACE( "recv ddepack %u %x\n", size, uiHi );
1434 if (size)
1435 {
1436 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1437 return FALSE;
1438 if ((ptr = GlobalLock( hMem )))
1439 {
1440 memcpy( ptr, *buffer, size );
1441 GlobalUnlock( hMem );
1442 }
1443 else
1444 {
1445 GlobalFree( hMem );
1446 return FALSE;
1447 }
1448 }
1449 uiLo = (UINT)hMem;
1450
1451 *lparam = PackDDElParam( message, uiLo, uiHi );
1452 break;
1453 case WM_DDE_EXECUTE:
1454 if (size)
1455 {
1456 if (!buffer || !*buffer) return FALSE;
1457 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1458 if ((ptr = GlobalLock( hMem )))
1459 {
1460 memcpy( ptr, *buffer, size );
1461 GlobalUnlock( hMem );
1462 TRACE( "exec: pairing c=%08lx s=%08lx\n", *lparam, (DWORD)hMem );
1463 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1464 {
1465 GlobalFree( hMem );
1466 return FALSE;
1467 }
1468 }
1469 else
1470 {
1471 GlobalFree( hMem );
1472 return FALSE;
1473 }
1474 } else return FALSE;
1475 *lparam = (LPARAM)hMem;
1476 break;
1477 }
1478 return TRUE;
1479 }
1480
1481 /***********************************************************************
1482 * call_window_proc
1483 *
1484 * Call a window procedure and the corresponding hooks.
1485 */
1486 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1487 BOOL unicode, BOOL same_thread )
1488 {
1489 struct user_thread_info *thread_info = get_user_thread_info();
1490 LRESULT result = 0;
1491 WNDPROC winproc;
1492 CWPSTRUCT cwp;
1493 CWPRETSTRUCT cwpret;
1494
1495 if (thread_info->recursion_count > MAX_SENDMSG_RECURSION) return 0;
1496 thread_info->recursion_count++;
1497
1498 if (msg & 0x80000000)
1499 {
1500 result = handle_internal_message( hwnd, msg, wparam, lparam );
1501 goto done;
1502 }
1503
1504 /* first the WH_CALLWNDPROC hook */
1505 hwnd = WIN_GetFullHandle( hwnd );
1506 cwp.lParam = lparam;
1507 cwp.wParam = wparam;
1508 cwp.message = msg;
1509 cwp.hwnd = hwnd;
1510 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1511
1512 /* now call the window procedure */
1513 if (unicode)
1514 {
1515 if (!(winproc = (WNDPROC)GetWindowLongPtrW( hwnd, GWLP_WNDPROC ))) goto done;
1516 result = CallWindowProcW( winproc, hwnd, msg, wparam, lparam );
1517 }
1518 else
1519 {
1520 if (!(winproc = (WNDPROC)GetWindowLongPtrA( hwnd, GWLP_WNDPROC ))) goto done;
1521 result = CallWindowProcA( winproc, hwnd, msg, wparam, lparam );
1522 }
1523
1524 /* and finally the WH_CALLWNDPROCRET hook */
1525 cwpret.lResult = result;
1526 cwpret.lParam = lparam;
1527 cwpret.wParam = wparam;
1528 cwpret.message = msg;
1529 cwpret.hwnd = hwnd;
1530 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1531 done:
1532 thread_info->recursion_count--;
1533 return result;
1534 }
1535
1536
1537 /***********************************************************************
1538 * send_parent_notify
1539 *
1540 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1541 * the window has the WS_EX_NOPARENTNOTIFY style.
1542 */
1543 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1544 {
1545 /* pt has to be in the client coordinates of the parent window */
1546 MapWindowPoints( 0, hwnd, &pt, 1 );
1547 for (;;)
1548 {
1549 HWND parent;
1550
1551 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1552 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1553 if (!(parent = GetParent(hwnd))) break;
1554 MapWindowPoints( hwnd, parent, &pt, 1 );
1555 hwnd = parent;
1556 SendMessageW( hwnd, WM_PARENTNOTIFY,
1557 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1558 }
1559 }
1560
1561
1562 /***********************************************************************
1563 * accept_hardware_message
1564 *
1565 * Tell the server we have passed the message to the app
1566 * (even though we may end up dropping it later on)
1567 */
1568 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1569 {
1570 SERVER_START_REQ( accept_hardware_message )
1571 {
1572 req->hw_id = hw_id;
1573 req->remove = remove;
1574 req->new_win = new_hwnd;
1575 if (wine_server_call( req ))
1576 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1577 }
1578 SERVER_END_REQ;
1579 }
1580
1581
1582 /***********************************************************************
1583 * process_keyboard_message
1584 *
1585 * returns TRUE if the contents of 'msg' should be passed to the application
1586 */
1587 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1588 UINT first, UINT last, BOOL remove )
1589 {
1590 EVENTMSG event;
1591
1592 /* FIXME: is this really the right place for this hook? */
1593 event.message = msg->message;
1594 event.hwnd = msg->hwnd;
1595 event.time = msg->time;
1596 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1597 event.paramH = msg->lParam & 0x7FFF;
1598 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1599 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1600
1601 /* check message filters */
1602 if (msg->message < first || msg->message > last) return FALSE;
1603 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1604
1605 if (remove)
1606 {
1607 /* Handle F1 key by sending out WM_HELP message */
1608 if ((msg->message == WM_KEYUP) &&
1609 (msg->wParam == VK_F1) &&
1610 (msg->hwnd != GetDesktopWindow()) &&
1611 !MENU_IsMenuActive())
1612 {
1613 HELPINFO hi;
1614 hi.cbSize = sizeof(HELPINFO);
1615 hi.iContextType = HELPINFO_WINDOW;
1616 hi.iCtrlId = GetWindowLongPtrA( msg->hwnd, GWLP_ID );
1617 hi.hItemHandle = msg->hwnd;
1618 hi.dwContextId = GetWindowContextHelpId( msg->hwnd );
1619 hi.MousePos = msg->pt;
1620 SendMessageW( msg->hwnd, WM_HELP, 0, (LPARAM)&hi );
1621 }
1622 }
1623
1624 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1625 LOWORD(msg->wParam), msg->lParam, TRUE ))
1626 {
1627 /* skip this message */
1628 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1629 accept_hardware_message( hw_id, TRUE, 0 );
1630 return FALSE;
1631 }
1632 accept_hardware_message( hw_id, remove, 0 );
1633 return TRUE;
1634 }
1635
1636
1637 /***********************************************************************
1638 * process_mouse_message
1639 *
1640 * returns TRUE if the contents of 'msg' should be passed to the application
1641 */
1642 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1643 UINT first, UINT last, BOOL remove )
1644 {
1645 static MSG clk_msg;
1646
1647 POINT pt;
1648 UINT message;
1649 INT hittest;
1650 EVENTMSG event;
1651 GUITHREADINFO info;
1652 MOUSEHOOKSTRUCT hook;
1653 BOOL eatMsg;
1654
1655 /* find the window to dispatch this mouse message to */
1656
1657 hittest = HTCLIENT;
1658 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1659 if (!(msg->hwnd = info.hwndCapture))
1660 {
1661 HWND hWndScope = msg->hwnd;
1662 /* If no capture HWND, find window which contains the mouse position.
1663 * Also find the position of the cursor hot spot (hittest) */
1664 if (!IsWindow(hWndScope)) hWndScope = 0;
1665 if (!(msg->hwnd = WINPOS_WindowFromPoint( hWndScope, msg->pt, &hittest )))
1666 msg->hwnd = GetDesktopWindow();
1667 }
1668
1669 if (!WIN_IsCurrentThread( msg->hwnd ))
1670 {
1671 accept_hardware_message( hw_id, FALSE, msg->hwnd );
1672 return FALSE;
1673 }
1674
1675 /* FIXME: is this really the right place for this hook? */
1676 event.message = msg->message;
1677 event.time = msg->time;
1678 event.hwnd = msg->hwnd;
1679 event.paramL = msg->pt.x;
1680 event.paramH = msg->pt.y;
1681 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1682
1683 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1684
1685 pt = msg->pt;
1686 message = msg->message;
1687 /* Note: windows has no concept of a non-client wheel message */
1688 if (message != WM_MOUSEWHEEL)
1689 {
1690 if (hittest != HTCLIENT)
1691 {
1692 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1693 msg->wParam = hittest;
1694 }
1695 else
1696 {
1697 /* coordinates don't get translated while tracking a menu */
1698 /* FIXME: should differentiate popups and top-level menus */
1699 if (!(info.flags & GUI_INMENUMODE))
1700 ScreenToClient( msg->hwnd, &pt );
1701 }
1702 }
1703 msg->lParam = MAKELONG( pt.x, pt.y );
1704
1705 /* translate double clicks */
1706
1707 if ((msg->message == WM_LBUTTONDOWN) ||
1708 (msg->message == WM_RBUTTONDOWN) ||
1709 (msg->message == WM_MBUTTONDOWN) ||
1710 (msg->message == WM_XBUTTONDOWN))
1711 {
1712 BOOL update = remove;
1713
1714 /* translate double clicks -
1715 * note that ...MOUSEMOVEs can slip in between
1716 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1717
1718 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1719 hittest != HTCLIENT ||
1720 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1721 {
1722 if ((msg->message == clk_msg.message) &&
1723 (msg->hwnd == clk_msg.hwnd) &&
1724 (msg->wParam == clk_msg.wParam) &&
1725 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1726 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1727 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1728 {
1729 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1730 clk_msg.message = 0; /* clear the double click conditions */
1731 update = FALSE;
1732 }
1733 }
1734 if (message < first || message > last) return FALSE;
1735 /* update static double click conditions */
1736 if (update) clk_msg = *msg;
1737 }
1738 else
1739 {
1740 if (message < first || message > last) return FALSE;
1741 }
1742
1743 /* message is accepted now (but may still get dropped) */
1744
1745 hook.pt = msg->pt;
1746 hook.hwnd = msg->hwnd;
1747 hook.wHitTestCode = hittest;
1748 hook.dwExtraInfo = extra_info;
1749 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1750 message, (LPARAM)&hook, TRUE ))
1751 {
1752 hook.pt = msg->pt;
1753 hook.hwnd = msg->hwnd;
1754 hook.wHitTestCode = hittest;
1755 hook.dwExtraInfo = extra_info;
1756 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1757 accept_hardware_message( hw_id, TRUE, 0 );
1758 return FALSE;
1759 }
1760
1761 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1762 {
1763 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1764 MAKELONG( hittest, msg->message ));
1765 accept_hardware_message( hw_id, TRUE, 0 );
1766 return FALSE;
1767 }
1768
1769 accept_hardware_message( hw_id, remove, 0 );
1770
1771 if (!remove || info.hwndCapture)
1772 {
1773 msg->message = message;
1774 return TRUE;
1775 }
1776
1777 eatMsg = FALSE;
1778
1779 if ((msg->message == WM_LBUTTONDOWN) ||
1780 (msg->message == WM_RBUTTONDOWN) ||
1781 (msg->message == WM_MBUTTONDOWN) ||
1782 (msg->message == WM_XBUTTONDOWN))
1783 {
1784 /* Send the WM_PARENTNOTIFY,
1785 * note that even for double/nonclient clicks
1786 * notification message is still WM_L/M/RBUTTONDOWN.
1787 */
1788 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1789
1790 /* Activate the window if needed */
1791
1792 if (msg->hwnd != info.hwndActive)
1793 {
1794 HWND hwndTop = msg->hwnd;
1795 while (hwndTop)
1796 {
1797 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1798 hwndTop = GetParent( hwndTop );
1799 }
1800
1801 if (hwndTop && hwndTop != GetDesktopWindow())
1802 {
1803 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1804 MAKELONG( hittest, msg->message ) );
1805 switch(ret)
1806 {
1807 case MA_NOACTIVATEANDEAT:
1808 eatMsg = TRUE;
1809 /* fall through */
1810 case MA_NOACTIVATE:
1811 break;
1812 case MA_ACTIVATEANDEAT:
1813 eatMsg = TRUE;
1814 /* fall through */
1815 case MA_ACTIVATE:
1816 case 0:
1817 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1818 break;
1819 default:
1820 WARN( "unknown WM_MOUSEACTIVATE code %ld\n", ret );
1821 break;
1822 }
1823 }
1824 }
1825 }
1826
1827 /* send the WM_SETCURSOR message */
1828
1829 /* Windows sends the normal mouse message as the message parameter
1830 in the WM_SETCURSOR message even if it's non-client mouse message */
1831 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1832
1833 msg->message = message;
1834 return !eatMsg;
1835 }
1836
1837
1838 /***********************************************************************
1839 * process_hardware_message
1840 *
1841 * Process a hardware message; return TRUE if message should be passed on to the app
1842 */
1843 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1844 UINT first, UINT last, BOOL remove )
1845 {
1846 if (is_keyboard_message( msg->message ))
1847 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1848
1849 if (is_mouse_message( msg->message ))
1850 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1851
1852 ERR( "unknown message type %x\n", msg->message );
1853 return FALSE;
1854 }
1855
1856
1857 /***********************************************************************
1858 * call_sendmsg_callback
1859 *
1860 * Call the callback function of SendMessageCallback.
1861 */
1862 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
1863 ULONG_PTR data, LRESULT result )
1864 {
1865 if (TRACE_ON(relay))
1866 DPRINTF( "%04lx:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1867 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1868 data, result );
1869 callback( hwnd, msg, data, result );
1870 if (TRACE_ON(relay))
1871 DPRINTF( "%04lx:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1872 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1873 data, result );
1874 }
1875
1876
1877 /***********************************************************************
1878 * get_hook_proc
1879 *
1880 * Retrieve the hook procedure real value for a module-relative proc
1881 */
1882 static void *get_hook_proc( void *proc, const WCHAR *module )
1883 {
1884 HMODULE mod;
1885
1886 if (!(mod = GetModuleHandleW(module)))
1887 {
1888 TRACE( "loading %s\n", debugstr_w(module) );
1889 /* FIXME: the library will never be freed */
1890 if (!(mod = LoadLibraryW(module))) return NULL;
1891 }
1892 return (char *)mod + (ULONG_PTR)proc;
1893 }
1894
1895
1896 /***********************************************************************
1897 * peek_message
1898 *
1899 * Peek for a message matching the given parameters. Return FALSE if none available.
1900 * All pending sent messages are processed before returning.
1901 */
1902 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, int flags )
1903 {
1904 LRESULT result;
1905 ULONG_PTR extra_info = 0;
1906 struct user_thread_info *thread_info = get_user_thread_info();
1907 struct received_message_info info, *old_info;
1908 unsigned int hw_id = 0; /* id of previous hardware message */
1909
1910 if (!first && !last) last = ~0;
1911
1912 for (;;)
1913 {
1914 NTSTATUS res;
1915 void *buffer = NULL;
1916 size_t size = 0, buffer_size = 0;
1917
1918 do /* loop while buffer is too small */
1919 {
1920 if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
1921 return FALSE;
1922 SERVER_START_REQ( get_message )
1923 {
1924 req->flags = flags;
1925 req->get_win = hwnd;
1926 req->get_first = first;
1927 req->get_last = last;
1928 req->hw_id = hw_id;
1929 if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
1930 if (!(res = wine_server_call( req )))
1931 {
1932 size = wine_server_reply_size( reply );
1933 info.type = reply->type;
1934 info.msg.hwnd = reply->win;
1935 info.msg.message = reply->msg;
1936 info.msg.wParam = reply->wparam;
1937 info.msg.lParam = reply->lparam;
1938 info.msg.time = reply->time;
1939 info.msg.pt.x = reply->x;
1940 info.msg.pt.y = reply->y;
1941 info.hook = reply->hook;
1942 info.hook_proc = reply->hook_proc;
1943 hw_id = reply->hw_id;
1944 extra_info = reply->info;
1945 thread_info->active_hooks = reply->active_hooks;
1946 }
1947 else
1948 {
1949 HeapFree( GetProcessHeap(), 0, buffer );
1950 buffer_size = reply->total;
1951 }
1952 }
1953 SERVER_END_REQ;
1954 } while (res == STATUS_BUFFER_OVERFLOW);
1955
1956 if (res) return FALSE;
1957
1958 TRACE( "got type %d msg %x (%s) hwnd %p wp %x lp %lx\n",
1959 info.type, info.msg.message,
1960 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
1961 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
1962
1963 switch(info.type)
1964 {
1965 case MSG_ASCII:
1966 case MSG_UNICODE:
1967 info.flags = ISMEX_SEND;
1968 break;
1969 case MSG_NOTIFY:
1970 info.flags = ISMEX_NOTIFY;
1971 break;
1972 case MSG_CALLBACK:
1973 info.flags = ISMEX_CALLBACK;
1974 break;
1975 case MSG_CALLBACK_RESULT:
1976 call_sendmsg_callback( (SENDASYNCPROC)info.msg.wParam, info.msg.hwnd,
1977 info.msg.message, extra_info, info.msg.lParam );
1978 goto next;
1979 case MSG_WINEVENT:
1980 if (size)
1981 {
1982 WCHAR module[MAX_PATH];
1983 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
1984 memcpy( module, buffer, size );
1985 module[size / sizeof(WCHAR)] = 0;
1986 if (!(info.hook_proc = get_hook_proc( info.hook_proc, module )))
1987 {
1988 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
1989 goto next;
1990 }
1991 }
1992 if (TRACE_ON(relay))
1993 DPRINTF( "%04lx:Call winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04lx,time=%lx)\n",
1994 GetCurrentThreadId(), info.hook_proc,
1995 info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
1996 info.msg.lParam, extra_info, info.msg.time);
1997
1998 info.hook_proc( info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
1999 info.msg.lParam, extra_info, info.msg.time );
2000
2001 if (TRACE_ON(relay))
2002 DPRINTF( "%04lx:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04lx,time=%lx)\n",
2003 GetCurrentThreadId(), info.hook_proc,
2004 info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2005 info.msg.lParam, extra_info, info.msg.time);
2006 goto next;
2007 case MSG_OTHER_PROCESS:
2008 info.flags = ISMEX_SEND;
2009 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2010 &info.msg.lParam, &buffer, size ))
2011 {
2012 ERR( "invalid packed message %x (%s) hwnd %p wp %x lp %lx size %d\n",
2013 info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd), info.msg.hwnd,
2014 info.msg.wParam, info.msg.lParam, size );
2015 /* ignore it */
2016 reply_message( &info, 0, TRUE );
2017 goto next;
2018 }
2019 break;
2020 case MSG_HARDWARE:
2021 if (!process_hardware_message( &info.msg, hw_id, extra_info,
2022 hwnd, first, last, flags & GET_MSG_REMOVE ))
2023 {
2024 TRACE("dropping msg %x\n", info.msg.message );
2025 goto next; /* ignore it */
2026 }
2027 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2028 /* fall through */
2029 case MSG_POSTED:
2030 thread_info->GetMessageExtraInfoVal = extra_info;
2031 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2032 {
2033 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2034 &info.msg.lParam, &buffer, size ))
2035 {
2036 ERR( "invalid packed dde-message %x (%s) hwnd %p wp %x lp %lx size %d\n",
2037 info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2038 info.msg.hwnd, info.msg.wParam, info.msg.lParam, size );
2039 goto next; /* ignore it */
2040 }
2041 }
2042 *msg = info.msg;
2043 HeapFree( GetProcessHeap(), 0, buffer );
2044 return TRUE;
2045 }
2046
2047 /* if we get here, we have a sent message; call the window procedure */
2048 old_info = thread_info->receive_info;
2049 thread_info->receive_info = &info;
2050 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2051 info.msg.lParam, (info.type != MSG_ASCII), FALSE );
2052 reply_message( &info, result, TRUE );
2053 thread_info->receive_info = old_info;
2054 next:
2055 HeapFree( GetProcessHeap(), 0, buffer );
2056 }
2057 }
2058
2059
2060 /***********************************************************************
2061 * process_sent_messages
2062 *
2063 * Process all pending sent messages.
2064 */
2065 inline static void process_sent_messages(void)
2066 {
2067 MSG msg;
2068 peek_message( &msg, 0, 0, 0, GET_MSG_REMOVE | GET_MSG_SENT_ONLY );
2069 }
2070
2071
2072 /***********************************************************************
2073 * get_server_queue_handle
2074 *
2075 * Get a handle to the server message queue for the current thread.
2076 */
2077 static HANDLE get_server_queue_handle(void)
2078 {
2079 struct user_thread_info *thread_info = get_user_thread_info();
2080 HANDLE ret;
2081
2082 if (!(ret = thread_info->server_queue))
2083 {
2084 SERVER_START_REQ( get_msg_queue )
2085 {
2086 wine_server_call( req );
2087 ret = reply->handle;
2088 }
2089 SERVER_END_REQ;
2090 thread_info->server_queue = ret;
2091 if (!ret) ERR( "Cannot get server thread queue\n" );
2092 }
2093 return ret;
2094 }
2095
2096
2097 /***********************************************************************
2098 * wait_message_reply
2099 *
2100 * Wait until a sent message gets replied to.
2101 */
2102 static void wait_message_reply( UINT flags )
2103 {
2104 HANDLE server_queue = get_server_queue_handle();
2105
2106 for (;;)
2107 {
2108 unsigned int wake_bits = 0, changed_bits = 0;
2109 DWORD dwlc, res;
2110
2111 SERVER_START_REQ( set_queue_mask )
2112 {
2113 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2114 req->changed_mask = req->wake_mask;
2115 req->skip_wait = 1;
2116 if (!wine_server_call( req ))
2117 {
2118 wake_bits = reply->wake_bits;
2119 changed_bits = reply->changed_bits;
2120 }
2121 }
2122 SERVER_END_REQ;
2123
2124 if (wake_bits & QS_SMRESULT) return; /* got a result */
2125 if (wake_bits & QS_SENDMESSAGE)
2126 {
2127 /* Process the sent message immediately */
2128 process_sent_messages();
2129 continue;
2130 }
2131
2132 /* now wait for it */
2133
2134 ReleaseThunkLock( &dwlc );
2135
2136 if (USER_Driver.pMsgWaitForMultipleObjectsEx)
2137 res = USER_Driver.pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2138 INFINITE, QS_ALLINPUT, 0 );
2139 else
2140 res = WaitForSingleObject( server_queue, INFINITE );
2141
2142 if (dwlc) RestoreThunkLock( dwlc );
2143 }
2144 }
2145
2146 /***********************************************************************
2147 * put_message_in_queue
2148 *
2149 * Put a sent message into the destination queue.
2150 * For inter-process message, reply_size is set to expected size of reply data.
2151 */
2152 static BOOL put_message_in_queue( DWORD dest_tid, const struct send_message_info *info,
2153 size_t *reply_size )
2154 {
2155 struct packed_message data;
2156 unsigned int res;
2157 int i, timeout = -1;
2158
2159 if (info->type != MSG_NOTIFY &&
2160 info->type != MSG_CALLBACK &&
2161 info->type != MSG_POSTED &&
2162 info->timeout != INFINITE)
2163 timeout = info->timeout;
2164
2165 data.count = 0;
2166 if (info->type == MSG_OTHER_PROCESS)
2167 {
2168 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2169 if (data.count == -1)
2170 {
2171 WARN( "cannot pack message %x\n", info->msg );
2172 return FALSE;
2173 }
2174 }
2175 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2176 {
2177 return post_dde_message( dest_tid, &data, info );
2178 }
2179
2180 SERVER_START_REQ( send_message )
2181 {
2182 req->id = dest_tid;
2183 req->type = info->type;
2184 req->flags = 0;
2185 req->win = info->hwnd;
2186 req->msg = info->msg;
2187 req->wparam = info->wparam;
2188 req->lparam = info->lparam;
2189 req->time = GetCurrentTime();
2190 req->timeout = timeout;
2191
2192 if (info->type == MSG_CALLBACK)
2193 {
2194 req->callback = info->callback;
2195 req->info = info->data;
2196 }
2197
2198 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2199 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2200 if ((res = wine_server_call( req )))
2201 {
2202 if (res == STATUS_INVALID_PARAMETER)
2203 /* FIXME: find a STATUS_ value for this one */
2204 SetLastError( ERROR_INVALID_THREAD_ID );
2205 else
2206 SetLastError( RtlNtStatusToDosError(res) );
2207 }
2208 }
2209 SERVER_END_REQ;
2210 return !res;
2211 }
2212
2213
2214 /***********************************************************************
2215 * retrieve_reply
2216 *
2217 * Retrieve a message reply from the server.
2218 */
2219 static LRESULT retrieve_reply( const struct send_message_info *info,
2220 size_t reply_size, LRESULT *result )
2221 {
2222 NTSTATUS status;
2223 void *reply_data = NULL;
2224
2225 if (reply_size)
2226 {
2227 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2228 {
2229 WARN( "no memory for reply %d bytes, will be truncated\n", reply_size );
2230 reply_size = 0;
2231 }
2232 }
2233 SERVER_START_REQ( get_message_reply )
2234 {
2235 req->cancel = 1;
2236 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2237 if (!(status = wine_server_call( req ))) *result = reply->result;
2238 reply_size = wine_server_reply_size( reply );
2239 }
2240 SERVER_END_REQ;
2241 if (!status && reply_size)
2242 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2243
2244 HeapFree( GetProcessHeap(), 0, reply_data );
2245
2246 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx got reply %lx (err=%ld)\n",
2247 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2248 info->lparam, *result, status );
2249
2250 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2251 if (status) SetLastError( RtlNtStatusToDosError(status) );
2252 return !status;
2253 }
2254
2255
2256 /***********************************************************************
2257 * send_inter_thread_message
2258 */
2259 static LRESULT send_inter_thread_message( DWORD dest_tid, const struct send_message_info *info,
2260 LRESULT *res_ptr )
2261 {
2262 size_t reply_size = 0;
2263
2264 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
2265 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2266
2267 USER_CheckNotLock();
2268
2269 if (!put_message_in_queue( dest_tid, info, &reply_size )) return 0;
2270
2271 /* there's no reply to wait for on notify/callback messages */
2272 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2273
2274 wait_message_reply( info->flags );
2275 return retrieve_reply( info, reply_size, res_ptr );
2276 }
2277
2278
2279 /***********************************************************************
2280 * MSG_SendInternalMessageTimeout
2281 *
2282 * Same as SendMessageTimeoutW but sends the message to a specific thread
2283 * without requiring a window handle. Only works for internal Wine messages.
2284 */
2285 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2286 UINT msg, WPARAM wparam, LPARAM lparam,
2287 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2288 {
2289 struct send_message_info info;
2290 LRESULT ret, result;
2291
2292 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2293
2294 info.type = MSG_UNICODE;
2295 info.hwnd = 0;
2296 info.msg = msg;
2297 info.wparam = wparam;
2298 info.lparam = lparam;
2299 info.flags = flags;
2300 info.timeout = timeout;
2301
2302 if (USER_IsExitingThread( dest_tid )) return 0;
2303
2304 if (dest_tid == GetCurrentThreadId())
2305 {
2306 result = handle_internal_message( 0, msg, wparam, lparam );
2307 ret = 1;
2308 }
2309 else
2310 {
2311 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2312 ret = send_inter_thread_message( dest_tid, &info, &result );
2313 }
2314 if (ret && res_ptr) *res_ptr = result;
2315 return ret;
2316 }
2317
2318
2319 /***********************************************************************
2320 * SendMessageTimeoutW (USER32.@)
2321 */
2322 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2323 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2324 {
2325 struct send_message_info info;
2326 DWORD dest_tid, dest_pid;
2327 LRESULT ret, result;
2328
2329 info.type = MSG_UNICODE;
2330 info.hwnd = hwnd;
2331 info.msg = msg;
2332 info.wparam = wparam;
2333 info.lparam = lparam;
2334 info.flags = flags;
2335 info.timeout = timeout;
2336
2337 if (is_broadcast(hwnd))
2338 {
2339 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2340 if (res_ptr) *res_ptr = 1;
2341 return 1;
2342 }
2343
2344 if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
2345
2346 if (USER_IsExitingThread( dest_tid )) return 0;
2347
2348 SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
2349
2350 if (dest_tid == GetCurrentThreadId())
2351 {
2352 result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2353 ret = 1;
2354 }
2355 else
2356 {
2357 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2358 ret = send_inter_thread_message( dest_tid, &info, &result );
2359 }
2360
2361 SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
2362 if (ret && res_ptr) *res_ptr = result;
2363 return ret;
2364 }
2365
2366
2367 /***********************************************************************
2368 * SendMessageTimeoutA (USER32.@)
2369 */
2370 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2371 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2372 {
2373 struct send_message_info info;
2374 DWORD dest_tid, dest_pid;
2375 LRESULT ret, result;
2376
2377 info.type = MSG_ASCII;
2378 info.hwnd = hwnd;
2379 info.msg = msg;
2380 info.wparam = wparam;
2381 info.lparam = lparam;
2382 info.flags = flags;
2383 info.timeout = timeout;
2384
2385 if (is_broadcast(hwnd))
2386 {
2387 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2388 if (res_ptr) *res_ptr = 1;
2389 return 1;
2390 }
2391
2392 if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
2393
2394 if (USER_IsExitingThread( dest_tid )) return 0;
2395
2396 SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
2397
2398 if (dest_tid == GetCurrentThreadId())
2399 {
2400 result = call_window_proc( hwnd, msg, wparam, lparam, FALSE, TRUE );
2401 ret = 1;
2402 }
2403 else if (dest_pid == GetCurrentProcessId())
2404 {
2405 ret = send_inter_thread_message( dest_tid, &info, &result );
2406 }
2407 else
2408 {
2409 /* inter-process message: need to map to Unicode */
2410 info.type = MSG_OTHER_PROCESS;
2411 if (is_unicode_message( info.msg ))
2412 {
2413 if (WINPROC_MapMsg32ATo32W( info.hwnd, info.msg, &info.wparam, &info.lparam ) == -1)
2414 return 0;
2415 ret = send_inter_thread_message( dest_tid, &info, &result );
2416 result = WINPROC_UnmapMsg32ATo32W( info.hwnd, info.msg, info.wparam,
2417 info.lparam, result );
2418 }
2419 else ret = send_inter_thread_message( dest_tid, &info, &result );
2420 }
2421 SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
2422 if (ret && res_ptr) *res_ptr = result;
2423 return ret;
2424 }
2425
2426
2427 /***********************************************************************
2428 * SendMessageW (USER32.@)
2429 */
2430 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2431 {
2432 LRESULT res = 0;
2433 SendMessageTimeoutW( hwnd, msg, wparam, lparam, SMTO_NORMAL, INFINITE, &res );
2434 return res;
2435 }
2436
2437
2438 /***********************************************************************
2439 * SendMessageA (USER32.@)
2440 */
2441 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2442 {
2443 LRESULT res = 0;
2444 SendMessageTimeoutA( hwnd, msg, wparam, lparam, SMTO_NORMAL, INFINITE, &res );
2445 return res;
2446 }
2447
2448
2449 /***********************************************************************
2450 * SendNotifyMessageA (USER32.@)
2451 */
2452 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2453 {
2454 return SendNotifyMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
2455 }
2456
2457
2458 /***********************************************************************
2459 * SendNotifyMessageW (USER32.@)
2460 */
2461 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2462 {
2463 struct send_message_info info;
2464 DWORD dest_tid;
2465 LRESULT result;
2466
2467 if (is_pointer_message(msg))
2468 {
2469 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2470 return FALSE;
2471 }
2472
2473 info.type = MSG_NOTIFY;
2474 info.hwnd = hwnd;
2475 info.msg = msg;
2476 info.wparam = wparam;
2477 info.lparam = lparam;
2478 info.flags = 0;
2479
2480 if (is_broadcast(hwnd))
2481 {
2482 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2483 return TRUE;
2484 }
2485
2486 if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2487
2488 if (USER_IsExitingThread( dest_tid )) return TRUE;
2489
2490 if (dest_tid == GetCurrentThreadId())
2491 {
2492 call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2493 return TRUE;
2494 }
2495 return send_inter_thread_message( dest_tid, &info, &result );
2496 }
2497
2498
2499 /***********************************************************************
2500 * SendMessageCallbackA (USER32.@)
2501 */
2502 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2503 SENDASYNCPROC callback, ULONG_PTR data )
2504 {
2505 return SendMessageCallbackW( hwnd, msg, map_wparam_AtoW( msg, wparam ),
2506 lparam, callback, data );
2507 }
2508
2509
2510 /***********************************************************************
2511 * SendMessageCallbackW (USER32.@)
2512 */
2513 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2514 SENDASYNCPROC callback, ULONG_PTR data )
2515 {
2516 struct send_message_info info;
2517 LRESULT result;
2518 DWORD dest_tid;
2519
2520 if (is_pointer_message(msg))
2521 {
2522 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2523 return FALSE;
2524 }
2525
2526 info.type = MSG_CALLBACK;
2527 info.hwnd = hwnd;
2528 info.msg = msg;
2529 info.wparam = wparam;
2530 info.lparam = lparam;
2531 info.callback = callback;
2532 info.data = data;
2533 info.flags = 0;
2534
2535 if (is_broadcast(hwnd))
2536 {
2537 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2538 return TRUE;
2539 }
2540
2541 if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2542
2543 if (USER_IsExitingThread( dest_tid )) return TRUE;
2544
2545 if (dest_tid == GetCurrentThreadId())
2546 {
2547 result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2548 call_sendmsg_callback( callback, hwnd, msg, data, result );
2549 return TRUE;
2550 }
2551 FIXME( "callback will not be called\n" );
2552 return send_inter_thread_message( dest_tid, &info, &result );
2553 }
2554
2555
2556 /***********************************************************************
2557 * ReplyMessage (USER32.@)
2558 */
2559 BOOL WINAPI ReplyMessage( LRESULT result )
2560 {
2561 struct received_message_info *info = get_user_thread_info()->receive_info;
2562
2563 if (!info) return FALSE;
2564 reply_message( info, result, FALSE );
2565 return TRUE;
2566 }
2567
2568
2569 /***********************************************************************
2570 * InSendMessage (USER32.@)
2571 */
2572 BOOL WINAPI InSendMessage(void)
2573 {
2574 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2575 }
2576
2577
2578 /***********************************************************************
2579 * InSendMessageEx (USER32.@)
2580 */
2581 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2582 {
2583 struct received_message_info *info = get_user_thread_info()->receive_info;
2584
2585 if (info) return info->flags;
2586 return ISMEX_NOSEND;
2587 }
2588
2589
2590 /***********************************************************************
2591 * PostMessageA (USER32.@)
2592 */
2593 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2594 {
2595 return PostMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
2596 }
2597
2598
2599 /***********************************************************************
2600 * PostMessageW (USER32.@)
2601 */
2602 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2603 {
2604 struct send_message_info info;
2605 DWORD dest_tid;
2606
2607 if (is_pointer_message( msg ))
2608 {
2609 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2610 return FALSE;
2611 }
2612
2613 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
2614 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2615
2616 info.type = MSG_POSTED;
2617 info.hwnd = hwnd;
2618 info.msg = msg;
2619 info.wparam = wparam;
2620 info.lparam = lparam;
2621 info.flags = 0;
2622
2623 if (is_broadcast(hwnd))
2624 {
2625 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2626 return TRUE;
2627 }
2628
2629 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2630
2631 if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2632
2633 if (USER_IsExitingThread( dest_tid )) return TRUE;
2634
2635 return put_message_in_queue( dest_tid, &info, NULL );
2636 }
2637
2638
2639 /**********************************************************************
2640 * PostThreadMessageA (USER32.@)
2641 */
2642 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2643 {
2644 return PostThreadMessageW( thread, msg, map_wparam_AtoW( msg, wparam ), lparam );
2645 }
2646
2647
2648 /**********************************************************************
2649 * PostThreadMessageW (USER32.@)
2650 */
2651 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2652 {
2653 struct send_message_info info;
2654
2655 if (is_pointer_message( msg ))
2656 {
2657 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2658 return FALSE;
2659 }
2660 if (USER_IsExitingThread( thread )) return TRUE;
2661
2662 info.type = MSG_POSTED;
2663 info.hwnd = 0;
2664 info.msg = msg;
2665 info.wparam = wparam;
2666 info.lparam = lparam;
2667 info.flags = 0;
2668 return put_message_in_queue( thread, &info, NULL );
2669 }
2670
2671
2672 /***********************************************************************
2673 * PostQuitMessage (USER32.@)
2674 */
2675 void WINAPI PostQuitMessage( INT exitCode )
2676 {
2677 PostThreadMessageW( GetCurrentThreadId(), WM_QUIT, exitCode, 0 );
2678 }
2679
2680
2681 /***********************************************************************
2682 * PeekMessageW (USER32.@)
2683 */
2684 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2685 {
2686 struct user_thread_info *thread_info = get_user_thread_info();
2687 MSG msg;
2688
2689 USER_CheckNotLock();
2690
2691 /* check for graphics events */
2692 if (USER_Driver.pMsgWaitForMultipleObjectsEx)
2693 USER_Driver.pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2694
2695 hwnd = WIN_GetFullHandle( hwnd );
2696
2697 for (;;)
2698 {
2699 if (!peek_message( &msg, hwnd, first, last, (flags & PM_REMOVE) ? GET_MSG_REMOVE : 0 ))
2700 {
2701 if (!(flags & PM_NOYIELD))
2702 {
2703 DWORD count;
2704 ReleaseThunkLock(&count);
2705 NtYieldExecution();
2706 if (count) RestoreThunkLock(count);
2707 }
2708 return FALSE;
2709 }
2710 if (msg.message & 0x80000000)
2711 {
2712 handle_internal_message( msg.hwnd, msg.message, msg.wParam, msg.lParam );
2713 if (!(flags & PM_REMOVE)) /* have to remove it explicitly */
2714 peek_message( &msg, msg.hwnd, msg.message, msg.message, GET_MSG_REMOVE );
2715 }
2716 else break;
2717 }
2718
2719 thread_info->GetMessageTimeVal = msg.time;
2720 msg.pt.x = LOWORD( thread_info->GetMessagePosVal );
2721 msg.pt.y = HIWORD( thread_info->GetMessagePosVal );
2722
2723 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)&msg, TRUE );
2724
2725 /* copy back our internal safe copy of message data to msg_out.
2726 * msg_out is a variable from the *program*, so it can't be used
2727 * internally as it can get "corrupted" by our use of SendMessage()
2728 * (back to the program) inside the message handling itself. */
2729 if (!msg_out)
2730 {
2731 SetLastError( ERROR_NOACCESS );
2732 return FALSE;
2733 }
2734 *msg_out = msg;
2735 return TRUE;
2736 }
2737
2738
2739 /***********************************************************************
2740 * PeekMessageA (USER32.@)
2741 */
2742 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2743 {
2744 BOOL ret = PeekMessageW( msg, hwnd, first, last, flags );
2745 if (ret) msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
2746 return ret;
2747 }
2748
2749
2750 /***********************************************************************
2751 * GetMessageW (USER32.@)
2752 */
2753 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2754 {
2755 HANDLE server_queue = get_server_queue_handle();
2756 int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2757
2758 if (first || last)
2759 {
2760 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2761 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2762 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2763 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2764 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2765 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2766 }
2767 else mask |= QS_MOUSE | QS_KEY | QS_TIMER | QS_PAINT;
2768
2769 while (!PeekMessageW( msg, hwnd, first, last, PM_REMOVE ))
2770 {
2771 /* wait until one of the bits is set */
2772 unsigned int wake_bits = 0, changed_bits = 0;
2773 DWORD dwlc;
2774
2775 SERVER_START_REQ( set_queue_mask )
2776 {
2777 req->wake_mask = QS_SENDMESSAGE;
2778 req->changed_mask = mask;
2779 req->skip_wait = 1;
2780 if (!wine_server_call( req ))
2781 {
2782 wake_bits = reply->wake_bits;
2783 changed_bits = reply->changed_bits;
2784 }
2785 }
2786 SERVER_END_REQ;
2787
2788 if (changed_bits & mask) continue;
2789 if (wake_bits & QS_SENDMESSAGE) continue;
2790
2791 TRACE( "(%04lx) mask=%08x, bits=%08x, changed=%08x, waiting\n",
2792 GetCurrentThreadId(), mask, wake_bits, changed_bits );
2793
2794 ReleaseThunkLock( &dwlc );
2795 if (USER_Driver.pMsgWaitForMultipleObjectsEx)
2796 USER_Driver.pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE,
2797 QS_ALLINPUT, 0 );
2798 else
2799 WaitForSingleObject( server_queue, INFINITE );
2800 if (dwlc) RestoreThunkLock( dwlc );
2801 }
2802
2803 return (msg->message != WM_QUIT);
2804 }
2805
2806
2807 /***********************************************************************
2808 * GetMessageA (USER32.@)
2809 */
2810 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2811 {
2812 GetMessageW( msg, hwnd, first, last );
2813 msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
2814 return (msg->message != WM_QUIT);
2815 }
2816
2817
2818 /***********************************************************************
2819 * IsDialogMessage (USER32.@)
2820 * IsDialogMessageA (USER32.@)
2821 */
2822 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2823 {
2824 MSG msg = *pmsg;
2825 msg.wParam = map_wparam_AtoW( msg.message, msg.wParam );
2826 return IsDialogMessageW( hwndDlg, &msg );
2827 }
2828
2829
2830 /***********************************************************************
2831 * TranslateMessage (USER32.@)
2832 *
2833 * Implementation of TranslateMessage.
2834 *
2835 * TranslateMessage translates virtual-key messages into character-messages,
2836 * as follows :
2837 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
2838 * ditto replacing WM_* with WM_SYS*
2839 * This produces WM_CHAR messages only for keys mapped to ASCII characters
2840 * by the keyboard driver.
2841 *
2842 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
2843 * return value is nonzero, regardless of the translation.
2844 *
2845 */
2846 BOOL WINAPI TranslateMessage( const MSG *msg )
2847 {
2848 UINT message;
2849 WCHAR wp[2];
2850 BYTE state[256];
2851
2852 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
2853 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
2854
2855 TRACE_(key)("Translating key %s (%04x), scancode %02x\n",
2856 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
2857
2858 GetKeyboardState( state );
2859 /* FIXME : should handle ToUnicode yielding 2 */
2860 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
2861 {
2862 case 1:
2863 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
2864 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
2865 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
2866 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
2867 break;
2868
2869 case -1:
2870 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
2871 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
2872 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
2873 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
2874 break;
2875 }
2876 return TRUE;
2877 }
2878
2879
2880 /***********************************************************************
2881 * DispatchMessageA (USER32.@)
2882 */
2883 LONG WINAPI DispatchMessageA( const MSG* msg )
2884 {
2885 WND * wndPtr;
2886 LONG retval;
2887 WNDPROC winproc;
2888
2889 /* Process timer messages */
2890 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
2891 {
2892 if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
2893 msg->message, msg->wParam, GetTickCount() );
2894 }
2895
2896 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
2897 {
2898 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2899 return 0;
2900 }
2901 if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
2902 {
2903 if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2904 else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2905 return 0;
2906 }
2907 if (wndPtr->tid != GetCurrentThreadId())
2908 {
2909 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2910 WIN_ReleasePtr( wndPtr );
2911 return 0;
2912 }
2913 winproc = wndPtr->winproc;
2914 WIN_ReleasePtr( wndPtr );
2915
2916 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
2917 msg->wParam, msg->lParam );
2918 retval = CallWindowProcA( winproc, msg->hwnd, msg->message,
2919 msg->wParam, msg->lParam );
2920 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
2921 msg->wParam, msg->lParam );
2922
2923 if (msg->message == WM_PAINT)
2924 {
2925 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
2926 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
2927 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
2928 DeleteObject( hrgn );
2929 }
2930 return retval;
2931 }
2932
2933
2934 /***********************************************************************
2935 * DispatchMessageW (USER32.@) Process a message
2936 *
2937 * Process the message specified in the structure *_msg_.
2938 *
2939 * If the lpMsg parameter points to a WM_TIMER message and the
2940 * parameter of the WM_TIMER message is not NULL, the lParam parameter
2941 * points to the function that is called instead of the window
2942 * procedure.
2943 *
2944 * The message must be valid.
2945 *
2946 * RETURNS
2947 *
2948 * DispatchMessage() returns the result of the window procedure invoked.
2949 *
2950 * CONFORMANCE
2951 *
2952 * ECMA-234, Win32
2953 *
2954 */
2955 LONG WINAPI DispatchMessageW( const MSG* msg )
2956 {
2957 WND * wndPtr;
2958 LONG retval;
2959 WNDPROC winproc;
2960
2961 /* Process timer messages */
2962 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
2963 {
2964 if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
2965 msg->message, msg->wParam, GetTickCount() );
2966 }
2967
2968 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
2969 {
2970 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2971 return 0;
2972 }
2973 if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
2974 {
2975 if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2976 else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2977 return 0;
2978 }
2979 if (wndPtr->tid != GetCurrentThreadId())
2980 {
2981 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2982 WIN_ReleasePtr( wndPtr );
2983 return 0;
2984 }
2985 winproc = wndPtr->winproc;
2986 WIN_ReleasePtr( wndPtr );
2987
2988 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
2989 msg->wParam, msg->lParam );
2990 retval = CallWindowProcW( winproc, msg->hwnd, msg->message,
2991 msg->wParam, msg->lParam );
2992 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
2993 msg->wParam, msg->lParam );
2994
2995 if (msg->message == WM_PAINT)
2996 {
2997 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
2998 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
2999 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3000 DeleteObject( hrgn );
3001 }
3002 return retval;
3003 }
3004
3005
3006 /***********************************************************************
3007 * GetMessagePos (USER.119)
3008 * GetMessagePos (USER32.@)
3009 *
3010 * The GetMessagePos() function returns a long value representing a
3011 * cursor position, in screen coordinates, when the last message
3012 * retrieved by the GetMessage() function occurs. The x-coordinate is
3013 * in the low-order word of the return value, the y-coordinate is in
3014 * the high-order word. The application can use the MAKEPOINT()
3015 * macro to obtain a POINT structure from the return value.
3016 *
3017 * For the current cursor position, use GetCursorPos().
3018 *
3019 * RETURNS
3020 *
3021 * Cursor position of last message on success, zero on failure.
3022 *
3023 * CONFORMANCE
3024 *
3025 * ECMA-234, Win32
3026 *
3027 */
3028 DWORD WINAPI GetMessagePos(void)
3029 {
3030 return get_user_thread_info()->GetMessagePosVal;
3031 }
3032
3033
3034 /***********************************************************************
3035 * GetMessageTime (USER.120)
3036 * GetMessageTime (USER32.@)
3037 *
3038 * GetMessageTime() returns the message time for the last message
3039 * retrieved by the function. The time is measured in milliseconds with
3040 * the same offset as GetTickCount().
3041 *
3042 * Since the tick count wraps, this is only useful for moderately short
3043 * relative time comparisons.
3044 *
3045 * RETURNS
3046 *
3047 * Time of last message on success, zero on failure.
3048 */
3049 LONG WINAPI GetMessageTime(void)
3050 {
3051 return get_user_thread_info()->GetMessageTimeVal;
3052 }
3053
3054
3055 /***********************************************************************
3056 * GetMessageExtraInfo (USER.288)
3057 * GetMessageExtraInfo (USER32.@)
3058 */
3059 LPARAM WINAPI GetMessageExtraInfo(void)
3060 {
3061 return get_user_thread_info()->GetMessageExtraInfoVal;
3062 }
3063
3064
3065 /***********************************************************************
3066 * SetMessageExtraInfo (USER32.@)
3067 */
3068 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3069 {
3070 struct user_thread_info *thread_info = get_user_thread_info();
3071 LONG old_value = thread_info->GetMessageExtraInfoVal;
3072 thread_info->GetMessageExtraInfoVal = lParam;
3073 return old_value;
3074 }
3075
3076
3077 /***********************************************************************
3078 * WaitMessage (USER.112) Suspend thread pending messages
3079 * WaitMessage (USER32.@) Suspend thread pending messages
3080 *
3081 * WaitMessage() suspends a thread until events appear in the thread's
3082 * queue.
3083 */
3084 BOOL WINAPI WaitMessage(void)
3085 {
3086 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3087 }
3088
3089
3090 /***********************************************************************
3091 * MsgWaitForMultipleObjectsEx (USER32.@)
3092 */
3093 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3094 DWORD timeout, DWORD mask, DWORD flags )
3095 {
3096 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3097 DWORD i, ret, lock;
3098
3099 if (count > MAXIMUM_WAIT_OBJECTS-1)
3100 {
3101 SetLastError( ERROR_INVALID_PARAMETER );
3102 return WAIT_FAILED;
3103 }
3104
3105 /* set the queue mask */
3106 SERVER_START_REQ( set_queue_mask )
3107 {
3108 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3109 req->changed_mask = mask;
3110 req->skip_wait = 0;
3111 wine_server_call( req );
3112 }
3113 SERVER_END_REQ;
3114
3115 /* Add the thread event to the handle list */
3116 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3117 handles[count] = get_server_queue_handle();
3118
3119 ReleaseThunkLock( &lock );
3120 if (USER_Driver.pMsgWaitForMultipleObjectsEx)
3121 {
3122 ret = USER_Driver.pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3123 if (ret == count+1) ret = count; /* pretend the msg queue is ready */
3124 }
3125 else
3126 ret = WaitForMultipleObjectsEx( count+1, handles, flags & MWMO_WAITALL,
3127 timeout, flags & MWMO_ALERTABLE );
3128 if (lock) RestoreThunkLock( lock );
3129 return ret;
3130 }
3131
3132
3133 /***********************************************************************
3134 * MsgWaitForMultipleObjects (USER32.@)
3135 */
3136 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3137 BOOL wait_all, DWORD timeout, DWORD mask )
3138 {
3139 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3140 wait_all ? MWMO_WAITALL : 0 );
3141 }
3142
3143
3144 /***********************************************************************
3145 * WaitForInputIdle (USER32.@)
3146 */
3147 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3148 {
3149 DWORD start_time, elapsed, ret;
3150 HANDLE idle_event = (HANDLE)-1;
3151
3152 SERVER_START_REQ( wait_input_idle )
3153 {
3154 req->handle = hProcess;
3155 req->timeout = dwTimeOut;
3156 if (!(ret = wine_server_call_err( req ))) idle_event = reply->event;
3157 }
3158 SERVER_END_REQ;
3159 if (ret) return WAIT_FAILED; /* error */
3160 if (!idle_event) return 0; /* no event to wait on */
3161
3162 start_time = GetTickCount();
3163 elapsed = 0;
3164
3165 TRACE("waiting for %p\n", idle_event );
3166 do
3167 {
3168 ret = MsgWaitForMultipleObjects ( 1, &idle_event, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
3169 switch (ret)
3170 {
3171 case WAIT_OBJECT_0+1:
3172 process_sent_messages();
3173 break;
3174 case WAIT_TIMEOUT:
3175 case WAIT_FAILED:
3176 TRACE("timeout or error\n");
3177 return ret;
3178 default:
3179 TRACE("finished\n");
3180 return 0;
3181 }
3182 if (dwTimeOut != INFINITE)
3183 {
3184 elapsed = GetTickCount() - start_time;
3185 if (elapsed > dwTimeOut)
3186 break;
3187 }
3188 }
3189 while (1);
3190
3191 return WAIT_TIMEOUT;
3192 }
3193
3194
3195 /***********************************************************************
3196 * UserYield (USER.332)
3197 */
3198 void WINAPI UserYield16(void)
3199 {
3200 DWORD count;
3201
3202 /* Handle sent messages */
3203 process_sent_messages();
3204
3205 /* Yield */
3206 ReleaseThunkLock(&count);
3207
3208 if (count)
3209 {
3210 RestoreThunkLock(count);
3211 /* Handle sent messages again */
3212 process_sent_messages();
3213 }
3214 }
3215
3216
3217 /***********************************************************************
3218 * RegisterWindowMessage (USER.118)
3219 * RegisterWindowMessageA (USER32.@)
3220 */
3221 WORD WINAPI RegisterWindowMessageA( LPCSTR str )
3222 {
3223 TRACE("%s\n", str );
3224 return GlobalAddAtomA( str );
3225 }
3226
3227
3228 /***********************************************************************
3229 * RegisterWindowMessageW (USER32.@)
3230 */
3231 WORD WINAPI RegisterWindowMessageW( LPCWSTR str )
3232 {
3233 TRACE("%p\n", str );
3234 return GlobalAddAtomW( str );
3235 }
3236
3237
3238 /***********************************************************************
3239 * BroadcastSystemMessage (USER32.@)
3240 * BroadcastSystemMessageA (USER32.@)
3241 */
3242 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3243 {
3244 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3245 {
3246 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3247 PostMessageA( HWND_BROADCAST, msg, wp, lp );
3248 return 1;
3249 }
3250 else
3251 {
3252 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp);
3253 return -1;
3254 }
3255 }
3256
3257
3258 /***********************************************************************
3259 * BroadcastSystemMessageW (USER32.@)
3260 */
3261 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3262 {
3263 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3264 {
3265 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3266 PostMessageW( HWND_BROADCAST, msg, wp, lp );
3267 return 1;
3268 }
3269 else
3270 {
3271 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp );
3272 return -1;
3273 }
3274 }
3275
3276
3277 /***********************************************************************
3278 * SetMessageQueue (USER32.@)
3279 */
3280 BOOL WINAPI SetMessageQueue( INT size )
3281 {
3282 /* now obsolete the message queue will be expanded dynamically as necessary */
3283 return TRUE;
3284 }
3285
3286
3287 /***********************************************************************
3288 * MessageBeep (USER32.@)
3289 */
3290 BOOL WINAPI MessageBeep( UINT i )
3291 {
3292 BOOL active = TRUE;
3293 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3294 if (active && USER_Driver.pBeep) USER_Driver.pBeep();
3295 return TRUE;
3296 }
3297
3298
3299 /***********************************************************************
3300 * SetTimer (USER32.@)
3301 */
3302 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3303 {
3304 UINT_PTR ret;
3305 WNDPROC winproc = 0;
3306
3307 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, WIN_PROC_32A );
3308
3309 SERVER_START_REQ( set_win_timer )
3310 {
3311 req->win = hwnd;
3312 req->msg = WM_TIMER;
3313 req->id = id;
3314 req->rate = max( timeout, SYS_TIMER_RATE );
3315 req->lparam = (unsigned int)winproc;
3316 if (!wine_server_call_err( req ))
3317 {
3318 ret = reply->id;
3319 if (!ret) ret = TRUE;
3320 }
3321 else ret = 0;
3322 }
3323 SERVER_END_REQ;
3324
3325 TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
3326 return ret;
3327 }
3328
3329
3330 /***********************************************************************
3331 * SetSystemTimer (USER32.@)
3332 */
3333 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3334 {
3335 UINT_PTR ret;
3336 WNDPROC winproc = 0;
3337
3338 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, WIN_PROC_32A );
3339
3340 SERVER_START_REQ( set_win_timer )
3341 {
3342 req->win = hwnd;
3343 req->msg = WM_SYSTIMER;
3344 req->id = id;
3345 req->rate = max( timeout, SYS_TIMER_RATE );
3346 req->lparam = (unsigned int)winproc;
3347 if (!wine_server_call_err( req ))
3348 {
3349 ret = reply->id;
3350 if (!ret) ret = TRUE;
3351 }
3352 else ret = 0;
3353 }
3354 SERVER_END_REQ;
3355
3356 TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
3357 return ret;
3358 }
3359
3360
3361 /***********************************************************************
3362 * KillTimer (USER32.@)
3363 */
3364 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3365 {
3366 BOOL ret;
3367
3368 TRACE("%p %d\n", hwnd, id );
3369
3370 SERVER_START_REQ( kill_win_timer )
3371 {
3372 req->win = hwnd;
3373 req->msg = WM_TIMER;
3374 req->id = id;
3375 ret = !wine_server_call_err( req );
3376 }
3377 SERVER_END_REQ;
3378 return ret;
3379 }
3380
3381
3382 /***********************************************************************
3383 * KillSystemTimer (USER32.@)
3384 */
3385 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3386 {
3387 BOOL ret;
3388
3389 TRACE("%p %d\n", hwnd, id );
3390
3391 SERVER_START_REQ( kill_win_timer )
3392 {
3393 req->win = hwnd;
3394 req->msg = WM_SYSTIMER;
3395 req->id = id;
3396 ret = !wine_server_call_err( req );
3397 }
3398 SERVER_END_REQ;
3399 return ret;
3400 }
3401
3402
3403 /**********************************************************************
3404 * GetGUIThreadInfo (USER32.@)
3405 */
3406 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3407 {
3408 BOOL ret;
3409
3410 SERVER_START_REQ( get_thread_input )
3411 {
3412 req->tid = id;
3413 if ((ret = !wine_server_call_err( req )))
3414 {
3415 info->flags = 0;
3416 info->hwndActive = reply->active;
3417 info->hwndFocus = reply->focus;
3418 info->hwndCapture = reply->capture;
3419 info->hwndMenuOwner = reply->menu_owner;
3420 info->hwndMoveSize = reply->move_size;
3421 info->hwndCaret = reply->caret;
3422 info->rcCaret.left = reply->rect.left;
3423 info->rcCaret.top = reply->rect.top;
3424 info->rcCaret.right = reply->rect.right;
3425 info->rcCaret.bottom = reply->rect.bottom;
3426 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3427 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3428 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3429 }
3430 }
3431 SERVER_END_REQ;
3432 return ret;
3433 }
3434
3435
3436 /******************************************************************
3437 * IsHungAppWindow (USER32.@)
3438 *
3439 */
3440 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3441 {
3442 DWORD dwResult;
3443 return !SendMessageTimeoutA(hWnd, WM_NULL, 0, 0, SMTO_ABORTIFHUNG, 5000, &dwResult);
3444 }
GSOC 2012 project to enhance the control panel