dlls/user32/msg16.c

   1 /*
   2  * 16-bit 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "wine/winuser16.h"
  22 #include "wownt32.h"
  23 #include "winerror.h"
  24 #include "win.h"
  25 #include "user_private.h"
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(msg);
  29
  30 DWORD USER16_AlertableWait = 0;
  31
  32 static LRESULT cwp_hook_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
  33                                   LRESULT *result, void *arg )
  34 {
  35     CWPSTRUCT cwp;
  36
  37     cwp.hwnd    = hwnd;
  38     cwp.message = msg;
  39     cwp.wParam  = wp;
  40     cwp.lParam  = lp;
  41     *result = 0;
  42     return HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, 1, (LPARAM)&cwp, FALSE );
  43 }
  44
  45 static LRESULT send_message_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
  46                                       LRESULT *result, void *arg )
  47 {
  48     *result = SendMessageA( hwnd, msg, wp, lp );
  49     return *result;
  50 }
  51
  52 static LRESULT post_message_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
  53                                       LRESULT *result, void *arg )
  54 {
  55     *result = 0;
  56     return PostMessageA( hwnd, msg, wp, lp );
  57 }
  58
  59 static LRESULT post_thread_message_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
  60                                              LRESULT *result, void *arg )
  61 {
  62     DWORD_PTR tid = (DWORD_PTR)arg;
  63     *result = 0;
  64     return PostThreadMessageA( tid, msg, wp, lp );
  65 }
  66
  67 static LRESULT get_message_callback( HWND16 hwnd, UINT16 msg, WPARAM16 wp, LPARAM lp,
  68                                      LRESULT *result, void *arg )
  69 {
  70     MSG16 *msg16 = arg;
  71
  72     msg16->hwnd    = hwnd;
  73     msg16->message = msg;
  74     msg16->wParam  = wp;
  75     msg16->lParam  = lp;
  76     *result = 0;
  77     return 0;
  78 }
  79
  80
  81 /***********************************************************************
  82  *              SendMessage  (USER.111)
  83  */
  84 LRESULT WINAPI SendMessage16( HWND16 hwnd16, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
  85 {
  86     LRESULT result;
  87     HWND hwnd = WIN_Handle32( hwnd16 );
  88
  89     if (hwnd != HWND_BROADCAST && WIN_IsCurrentThread(hwnd))
  90     {
  91         /* call 16-bit window proc directly */
  92         WNDPROC16 winproc;
  93
  94         /* first the WH_CALLWNDPROC hook */
  95         if (HOOK_IsHooked( WH_CALLWNDPROC ))
  96             WINPROC_CallProc16To32A( cwp_hook_callback, hwnd16, msg, wparam, lparam, &result, NULL );
  97
  98         if (!(winproc = (WNDPROC16)GetWindowLong16( hwnd16, GWLP_WNDPROC ))) return 0;
  99
 100         SPY_EnterMessage( SPY_SENDMESSAGE16, hwnd, msg, wparam, lparam );
 101         result = CallWindowProc16( winproc, hwnd16, msg, wparam, lparam );
 102         SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg, result, wparam, lparam );
 103     }
 104     else  /* map to 32-bit unicode for inter-thread/process message */
 105     {
 106         WINPROC_CallProc16To32A( send_message_callback, hwnd16, msg, wparam, lparam, &result, NULL );
 107     }
 108     return result;
 109 }
 110
 111
 112 /***********************************************************************
 113  *              PostMessage  (USER.110)
 114  */
 115 BOOL16 WINAPI PostMessage16( HWND16 hwnd, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
 116 {
 117     LRESULT unused;
 118     return WINPROC_CallProc16To32A( post_message_callback, hwnd, msg, wparam, lparam, &unused, NULL );
 119 }
 120
 121
 122 /***********************************************************************
 123  *              PostAppMessage (USER.116)
 124  */
 125 BOOL16 WINAPI PostAppMessage16( HTASK16 hTask, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
 126 {
 127     LRESULT unused;
 128     DWORD_PTR tid = HTASK_32( hTask );
 129
 130     if (!tid) return FALSE;
 131     return WINPROC_CallProc16To32A( post_thread_message_callback, 0, msg, wparam, lparam,
 132                                     &unused, (void *)tid );
 133 }
 134
 135
 136 /***********************************************************************
 137  *              InSendMessage  (USER.192)
 138  */
 139 BOOL16 WINAPI InSendMessage16(void)
 140 {
 141     return InSendMessage();
 142 }
 143
 144
 145 /***********************************************************************
 146  *              ReplyMessage  (USER.115)
 147  */
 148 void WINAPI ReplyMessage16( LRESULT result )
 149 {
 150     ReplyMessage( result );
 151 }
 152
 153
 154 /***********************************************************************
 155  *              PeekMessage32 (USER.819)
 156  */
 157 BOOL16 WINAPI PeekMessage32_16( MSG32_16 *msg16, HWND16 hwnd16,
 158                                 UINT16 first, UINT16 last, UINT16 flags,
 159                                 BOOL16 wHaveParamHigh )
 160 {
 161     MSG msg;
 162     LRESULT unused;
 163     HWND hwnd = WIN_Handle32( hwnd16 );
 164
 165     if(USER16_AlertableWait)
 166         MsgWaitForMultipleObjectsEx( 0, NULL, 0, 0, MWMO_ALERTABLE );
 167     if (!PeekMessageA( &msg, hwnd, first, last, flags )) return FALSE;
 168
 169     msg16->msg.time    = msg.time;
 170     msg16->msg.pt.x    = (INT16)msg.pt.x;
 171     msg16->msg.pt.y    = (INT16)msg.pt.y;
 172     if (wHaveParamHigh) msg16->wParamHigh = HIWORD(msg.wParam);
 173     WINPROC_CallProc32ATo16( get_message_callback, msg.hwnd, msg.message, msg.wParam, msg.lParam,
 174                              &unused, &msg16->msg );
 175     return TRUE;
 176 }
 177
 178
 179 /***********************************************************************
 180  *              DefWindowProc (USER.107)
 181  */
 182 LRESULT WINAPI DefWindowProc16( HWND16 hwnd16, UINT16 msg, WPARAM16 wParam, LPARAM lParam )
 183 {
 184     LRESULT result;
 185     HWND hwnd = WIN_Handle32( hwnd16 );
 186
 187     SPY_EnterMessage( SPY_DEFWNDPROC16, hwnd, msg, wParam, lParam );
 188
 189     switch(msg)
 190     {
 191     case WM_NCCREATE:
 192         {
 193             CREATESTRUCT16 *cs16 = MapSL(lParam);
 194             CREATESTRUCTA cs32;
 195
 196             cs32.lpCreateParams = ULongToPtr(cs16->lpCreateParams);
 197             cs32.hInstance      = HINSTANCE_32(cs16->hInstance);
 198             cs32.hMenu          = HMENU_32(cs16->hMenu);
 199             cs32.hwndParent     = WIN_Handle32(cs16->hwndParent);
 200             cs32.cy             = cs16->cy;
 201             cs32.cx             = cs16->cx;
 202             cs32.y              = cs16->y;
 203             cs32.x              = cs16->x;
 204             cs32.style          = cs16->style;
 205             cs32.dwExStyle      = cs16->dwExStyle;
 206             cs32.lpszName       = MapSL(cs16->lpszName);
 207             cs32.lpszClass      = MapSL(cs16->lpszClass);
 208             result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)&cs32 );
 209         }
 210         break;
 211
 212     case WM_NCCALCSIZE:
 213         {
 214             RECT16 *rect16 = MapSL(lParam);
 215             RECT rect32;
 216
 217             rect32.left    = rect16->left;
 218             rect32.top     = rect16->top;
 219             rect32.right   = rect16->right;
 220             rect32.bottom  = rect16->bottom;
 221
 222             result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)&rect32 );
 223
 224             rect16->left   = rect32.left;
 225             rect16->top    = rect32.top;
 226             rect16->right  = rect32.right;
 227             rect16->bottom = rect32.bottom;
 228         }
 229         break;
 230
 231     case WM_WINDOWPOSCHANGING:
 232     case WM_WINDOWPOSCHANGED:
 233         {
 234             WINDOWPOS16 *pos16 = MapSL(lParam);
 235             WINDOWPOS pos32;
 236
 237             pos32.hwnd             = WIN_Handle32(pos16->hwnd);
 238             pos32.hwndInsertAfter  = WIN_Handle32(pos16->hwndInsertAfter);
 239             pos32.x                = pos16->x;
 240             pos32.y                = pos16->y;
 241             pos32.cx               = pos16->cx;
 242             pos32.cy               = pos16->cy;
 243             pos32.flags            = pos16->flags;
 244
 245             result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)&pos32 );
 246
 247             pos16->hwnd            = HWND_16(pos32.hwnd);
 248             pos16->hwndInsertAfter = HWND_16(pos32.hwndInsertAfter);
 249             pos16->x               = pos32.x;
 250             pos16->y               = pos32.y;
 251             pos16->cx              = pos32.cx;
 252             pos16->cy              = pos32.cy;
 253             pos16->flags           = pos32.flags;
 254         }
 255         break;
 256
 257     case WM_GETTEXT:
 258     case WM_SETTEXT:
 259         result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)MapSL(lParam) );
 260         break;
 261
 262     default:
 263         result = DefWindowProcA( hwnd, msg, wParam, lParam );
 264         break;
 265     }
 266
 267     SPY_ExitMessage( SPY_RESULT_DEFWND16, hwnd, msg, result, wParam, lParam );
 268     return result;
 269 }
 270
 271
 272 /***********************************************************************
 273  *              PeekMessage  (USER.109)
 274  */
 275 BOOL16 WINAPI PeekMessage16( MSG16 *msg, HWND16 hwnd,
 276                              UINT16 first, UINT16 last, UINT16 flags )
 277 {
 278     return PeekMessage32_16( (MSG32_16 *)msg, hwnd, first, last, flags, FALSE );
 279 }
 280
 281
 282 /***********************************************************************
 283  *              GetMessage32  (USER.820)
 284  */
 285 BOOL16 WINAPI GetMessage32_16( MSG32_16 *msg16, HWND16 hwnd16, UINT16 first,
 286                                UINT16 last, BOOL16 wHaveParamHigh )
 287 {
 288     MSG msg;
 289     LRESULT unused;
 290     HWND hwnd = WIN_Handle32( hwnd16 );
 291
 292     if(USER16_AlertableWait)
 293         MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, 0, MWMO_ALERTABLE );
 294     GetMessageA( &msg, hwnd, first, last );
 295     msg16->msg.time    = msg.time;
 296     msg16->msg.pt.x    = (INT16)msg.pt.x;
 297     msg16->msg.pt.y    = (INT16)msg.pt.y;
 298     if (wHaveParamHigh) msg16->wParamHigh = HIWORD(msg.wParam);
 299     WINPROC_CallProc32ATo16( get_message_callback, msg.hwnd, msg.message, msg.wParam, msg.lParam,
 300                              &unused, &msg16->msg );
 301
 302     TRACE( "message %04x, hwnd %p, filter(%04x - %04x)\n",
 303            msg16->msg.message, hwnd, first, last );
 304
 305     return msg16->msg.message != WM_QUIT;
 306 }
 307
 308
 309 /***********************************************************************
 310  *              GetMessage  (USER.108)
 311  */
 312 BOOL16 WINAPI GetMessage16( MSG16 *msg, HWND16 hwnd, UINT16 first, UINT16 last )
 313 {
 314     return GetMessage32_16( (MSG32_16 *)msg, hwnd, first, last, FALSE );
 315 }
 316
 317
 318 /***********************************************************************
 319  *              TranslateMessage32 (USER.821)
 320  */
 321 BOOL16 WINAPI TranslateMessage32_16( const MSG32_16 *msg, BOOL16 wHaveParamHigh )
 322 {
 323     MSG msg32;
 324
 325     msg32.hwnd    = WIN_Handle32( msg->msg.hwnd );
 326     msg32.message = msg->msg.message;
 327     msg32.wParam  = MAKEWPARAM( msg->msg.wParam, wHaveParamHigh ? msg->wParamHigh : 0 );
 328     msg32.lParam  = msg->msg.lParam;
 329     return TranslateMessage( &msg32 );
 330 }
 331
 332
 333 /***********************************************************************
 334  *              TranslateMessage (USER.113)
 335  */
 336 BOOL16 WINAPI TranslateMessage16( const MSG16 *msg )
 337 {
 338     return TranslateMessage32_16( (const MSG32_16 *)msg, FALSE );
 339 }
 340
 341
 342 /***********************************************************************
 343  *              DispatchMessage (USER.114)
 344  */
 345 LONG WINAPI DispatchMessage16( const MSG16* msg )
 346 {
 347     WND * wndPtr;
 348     WNDPROC16 winproc;
 349     LONG retval;
 350     HWND hwnd = WIN_Handle32( msg->hwnd );
 351
 352       /* Process timer messages */
 353     if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
 354     {
 355         if (msg->lParam)
 356             return CallWindowProc16( (WNDPROC16)msg->lParam, msg->hwnd,
 357                                      msg->message, msg->wParam, GetTickCount() );
 358     }
 359
 360     if (!(wndPtr = WIN_GetPtr( hwnd )))
 361     {
 362         if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 363         return 0;
 364     }
 365     if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
 366     {
 367         if (IsWindow( hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
 368         else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 369         return 0;
 370     }
 371     winproc = WINPROC_GetProc16( wndPtr->winproc, wndPtr->flags & WIN_ISUNICODE );
 372     WIN_ReleasePtr( wndPtr );
 373
 374     SPY_EnterMessage( SPY_DISPATCHMESSAGE16, hwnd, msg->message, msg->wParam, msg->lParam );
 375     retval = CallWindowProc16( winproc, msg->hwnd, msg->message, msg->wParam, msg->lParam );
 376     SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg->message, retval, msg->wParam, msg->lParam );
 377
 378     return retval;
 379 }
 380
 381
 382 /***********************************************************************
 383  *              DispatchMessage32 (USER.822)
 384  */
 385 LONG WINAPI DispatchMessage32_16( const MSG32_16 *msg16, BOOL16 wHaveParamHigh )
 386 {
 387     if (wHaveParamHigh == FALSE)
 388         return DispatchMessage16( &msg16->msg );
 389     else
 390     {
 391         MSG msg;
 392
 393         msg.hwnd    = WIN_Handle32( msg16->msg.hwnd );
 394         msg.message = msg16->msg.message;
 395         msg.wParam  = MAKEWPARAM( msg16->msg.wParam, msg16->wParamHigh );
 396         msg.lParam  = msg16->msg.lParam;
 397         msg.time    = msg16->msg.time;
 398         msg.pt.x    = msg16->msg.pt.x;
 399         msg.pt.y    = msg16->msg.pt.y;
 400         return DispatchMessageA( &msg );
 401     }
 402 }
 403
 404
 405 /***********************************************************************
 406  *              IsDialogMessage (USER.90)
 407  */
 408 BOOL16 WINAPI IsDialogMessage16( HWND16 hwndDlg, MSG16 *msg16 )
 409 {
 410     MSG msg;
 411     HWND hwndDlg32;
 412
 413     msg.hwnd  = WIN_Handle32(msg16->hwnd);
 414     hwndDlg32 = WIN_Handle32(hwndDlg);
 415
 416     switch(msg16->message)
 417     {
 418     case WM_KEYDOWN:
 419     case WM_CHAR:
 420     case WM_SYSCHAR:
 421         msg.message = msg16->message;
 422         msg.wParam  = msg16->wParam;
 423         msg.lParam  = msg16->lParam;
 424         return IsDialogMessageA( hwndDlg32, &msg );
 425     }
 426
 427     if ((hwndDlg32 != msg.hwnd) && !IsChild( hwndDlg32, msg.hwnd )) return FALSE;
 428     TranslateMessage16( msg16 );
 429     DispatchMessage16( msg16 );
 430     return TRUE;
 431 }
 432
 433
 434 /***********************************************************************
 435  *              MsgWaitForMultipleObjects  (USER.640)
 436  */
 437 DWORD WINAPI MsgWaitForMultipleObjects16( DWORD count, CONST HANDLE *handles,
 438                                           BOOL wait_all, DWORD timeout, DWORD mask )
 439 {
 440     return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
 441                                         wait_all ? MWMO_WAITALL : 0 );
 442 }
 443
 444
 445 /**********************************************************************
 446  *              SetDoubleClickTime (USER.20)
 447  */
 448 void WINAPI SetDoubleClickTime16( UINT16 interval )
 449 {
 450     SetDoubleClickTime( interval );
 451 }
 452
 453
 454 /**********************************************************************
 455  *              GetDoubleClickTime (USER.21)
 456  */
 457 UINT16 WINAPI GetDoubleClickTime16(void)
 458 {
 459     return GetDoubleClickTime();
 460 }
 461
 462
 463 /***********************************************************************
 464  *              PostQuitMessage (USER.6)
 465  */
 466 void WINAPI PostQuitMessage16( INT16 exitCode )
 467 {
 468     PostQuitMessage( exitCode );
 469 }
 470
 471
 472 /**********************************************************************
 473  *              GetKeyState (USER.106)
 474  */
 475 INT16 WINAPI GetKeyState16(INT16 vkey)
 476 {
 477     return GetKeyState(vkey);
 478 }
 479
 480
 481 /**********************************************************************
 482  *              GetKeyboardState (USER.222)
 483  */
 484 BOOL WINAPI GetKeyboardState16( LPBYTE state )
 485 {
 486     return GetKeyboardState( state );
 487 }
 488
 489
 490 /**********************************************************************
 491  *              SetKeyboardState (USER.223)
 492  */
 493 BOOL WINAPI SetKeyboardState16( LPBYTE state )
 494 {
 495     return SetKeyboardState( state );
 496 }
 497
 498
 499 /***********************************************************************
 500  *              SetMessageQueue (USER.266)
 501  */
 502 BOOL16 WINAPI SetMessageQueue16( INT16 size )
 503 {
 504     return SetMessageQueue( size );
 505 }
 506
 507
 508 /***********************************************************************
 509  *              GetQueueStatus (USER.334)
 510  */
 511 DWORD WINAPI GetQueueStatus16( UINT16 flags )
 512 {
 513     return GetQueueStatus( flags );
 514 }
 515
 516
 517 /***********************************************************************
 518  *              GetInputState (USER.335)
 519  */
 520 BOOL16 WINAPI GetInputState16(void)
 521 {
 522     return GetInputState();
 523 }
 524
 525
 526 /**********************************************************************
 527  *           TranslateAccelerator      (USER.178)
 528  */
 529 INT16 WINAPI TranslateAccelerator16( HWND16 hwnd, HACCEL16 hAccel, LPMSG16 msg )
 530 {
 531     MSG msg32;
 532
 533     if (!msg) return 0;
 534     msg32.message = msg->message;
 535     /* msg32.hwnd not used */
 536     msg32.wParam  = msg->wParam;
 537     msg32.lParam  = msg->lParam;
 538     return TranslateAcceleratorW( WIN_Handle32(hwnd), HACCEL_32(hAccel), &msg32 );
 539 }
 540
 541
 542 /**********************************************************************
 543  *              TranslateMDISysAccel (USER.451)
 544  */
 545 BOOL16 WINAPI TranslateMDISysAccel16( HWND16 hwndClient, LPMSG16 msg )
 546 {
 547     if (msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN)
 548     {
 549         MSG msg32;
 550         msg32.hwnd    = WIN_Handle32(msg->hwnd);
 551         msg32.message = msg->message;
 552         msg32.wParam  = msg->wParam;
 553         msg32.lParam  = msg->lParam;
 554         /* MDICLIENTINFO is still the same for win32 and win16 ... */
 555         return TranslateMDISysAccel( WIN_Handle32(hwndClient), &msg32 );
 556     }
 557     return 0;
 558 }