windows/user.c

   1 /*
   2  * Misc. USER functions
   3  *
   4  * Copyright 1993 Robert J. Amstadt
   5  *           1996 Alex Korobka
   6  */
   7
   8 #include <stdlib.h>
   9 #include "wine/winbase16.h"
  10 #include "winuser.h"
  11 #include "heap.h"
  12 #include "gdi.h"
  13 #include "user.h"
  14 #include "task.h"
  15 #include "queue.h"
  16 #include "win.h"
  17 #include "clipboard.h"
  18 #include "menu.h"
  19 #include "hook.h"
  20 #include "debug.h"
  21 #include "toolhelp.h"
  22 #include "message.h"
  23 #include "module.h"
  24 #include "miscemu.h"
  25 #include "shell.h"
  26 #include "callback.h"
  27 #include "local.h"
  28 #include "class.h"
  29 #include "desktop.h"
  30
  31 /***********************************************************************
  32  *           GetFreeSystemResources   (USER.284)
  33  */
  34 WORD WINAPI GetFreeSystemResources16( WORD resType )
  35 {
  36     int userPercent, gdiPercent;
  37
  38     switch(resType)
  39     {
  40     case GFSR_USERRESOURCES:
  41         userPercent = (int)LOCAL_CountFree( USER_HeapSel ) * 100 /
  42                                LOCAL_HeapSize( USER_HeapSel );
  43         gdiPercent  = 100;
  44         break;
  45
  46     case GFSR_GDIRESOURCES:
  47         gdiPercent  = (int)LOCAL_CountFree( GDI_HeapSel ) * 100 /
  48                                LOCAL_HeapSize( GDI_HeapSel );
  49         userPercent = 100;
  50         break;
  51
  52     case GFSR_SYSTEMRESOURCES:
  53         userPercent = (int)LOCAL_CountFree( USER_HeapSel ) * 100 /
  54                                LOCAL_HeapSize( USER_HeapSel );
  55         gdiPercent  = (int)LOCAL_CountFree( GDI_HeapSel ) * 100 /
  56                                LOCAL_HeapSize( GDI_HeapSel );
  57         break;
  58
  59     default:
  60         return 0;
  61     }
  62     return (WORD)MIN( userPercent, gdiPercent );
  63 }
  64
  65
  66 /***********************************************************************
  67  *           SystemHeapInfo   (TOOLHELP.71)
  68  */
  69 BOOL16 WINAPI SystemHeapInfo16( SYSHEAPINFO *pHeapInfo )
  70 {
  71     pHeapInfo->wUserFreePercent = GetFreeSystemResources16( GFSR_USERRESOURCES );
  72     pHeapInfo->wGDIFreePercent  = GetFreeSystemResources16( GFSR_GDIRESOURCES );
  73     pHeapInfo->hUserSegment = USER_HeapSel;
  74     pHeapInfo->hGDISegment  = GDI_HeapSel;
  75     return TRUE;
  76 }
  77
  78
  79 /***********************************************************************
  80  *           TimerCount   (TOOLHELP.80)
  81  */
  82 BOOL16 WINAPI TimerCount16( TIMERINFO *pTimerInfo )
  83 {
  84     /* FIXME
  85      * In standard mode, dwmsSinceStart = dwmsThisVM
  86      *
  87      * I tested this, under Windows in enhanced mode, and
  88      * if you never switch VM (ie start/stop DOS) these
  89      * values should be the same as well.
  90      *
  91      * Also, Wine should adjust for the hardware timer
  92      * to reduce the amount of error to ~1ms.
  93      * I can't be bothered, can you?
  94      */
  95     pTimerInfo->dwmsSinceStart = pTimerInfo->dwmsThisVM = GetTickCount();
  96     return TRUE;
  97 }
  98
  99 static FARPROC16 __r16loader = NULL;
 100
 101 /**********************************************************************
 102  *           USER_CallDefaultRsrcHandler
 103  *
 104  * Called by the LoadDIBIcon/CursorHandler().
 105  */
 106 HGLOBAL16 USER_CallDefaultRsrcHandler( HGLOBAL16 hMemObj, HMODULE16 hModule, HRSRC16 hRsrc )
 107 {
 108     return Callbacks->CallResourceHandlerProc( __r16loader, hMemObj, hModule, hRsrc );
 109 }
 110
 111 /**********************************************************************
 112  *           USER_InstallRsrcHandler
 113  */
 114 static void USER_InstallRsrcHandler( HINSTANCE16 hInstance )
 115 {
 116     FARPROC16 proc;
 117
 118     /* SetResourceHandler() returns previous function which is set
 119      * when a module's resource table is loaded. */
 120
 121     proc = SetResourceHandler16( hInstance, RT_ICON16,
 122                                MODULE_GetWndProcEntry16("LoadDIBIconHandler") );
 123     if (!__r16loader) __r16loader = proc;
 124
 125     proc = SetResourceHandler16( hInstance, RT_CURSOR16,
 126                                MODULE_GetWndProcEntry16("LoadDIBCursorHandler") );
 127     if (!__r16loader) __r16loader = proc;
 128 }
 129
 130 /**********************************************************************
 131  *           InitApp   (USER.5)
 132  */
 133 INT16 WINAPI InitApp16( HINSTANCE16 hInstance )
 134 {
 135       /* InitTask() calls LibMain()'s of implicitly loaded DLLs
 136        * prior to InitApp() so there is no clean way to do
 137        * SetTaskSignalHandler() in time. So, broken Windows bypasses
 138        * a pTask->userhandler on startup and simply calls a global
 139        * function pointer to the default USER signal handler.
 140        */
 141
 142     USER_InstallRsrcHandler( hInstance );
 143
 144     /* Hack: restore the divide-by-zero handler */
 145     /* FIXME: should set a USER-specific handler that displays a msg box */
 146     INT_SetPMHandler( 0, INT_GetPMHandler( 0xff ) );
 147
 148     /* Create task message queue */
 149     if ( !GetFastQueue16() ) return 0;
 150
 151     return 1;
 152 }
 153
 154 /**********************************************************************
 155  *           USER_ModuleUnload
 156  */
 157 static void USER_ModuleUnload( HMODULE16 hModule )
 158 {
 159     HOOK_FreeModuleHooks( hModule );
 160     CLASS_FreeModuleClasses( hModule );
 161 }
 162
 163 /**********************************************************************
 164  *           USER_QueueCleanup
 165  */
 166 void USER_QueueCleanup( HQUEUE16 hQueue )
 167 {
 168     if ( hQueue )
 169     {
 170         WND* desktop = WIN_GetDesktop();
 171
 172         /* Patch resident popup menu window */
 173         MENU_PatchResidentPopup( hQueue, NULL );
 174
 175         TIMER_RemoveQueueTimers( hQueue );
 176
 177         HOOK_FreeQueueHooks( hQueue );
 178
 179         QUEUE_SetExitingQueue( hQueue );
 180         WIN_ResetQueueWindows( desktop, hQueue, (HQUEUE16)0);
 181         CLIPBOARD_ResetLock( hQueue, 0 );
 182         QUEUE_SetExitingQueue( 0 );
 183
 184         /* Free the message queue */
 185         QUEUE_DeleteMsgQueue( hQueue );
 186     }
 187 }
 188
 189 /**********************************************************************
 190  *           USER_AppExit
 191  */
 192 static void USER_AppExit( HTASK16 hTask, HINSTANCE16 hInstance, HQUEUE16 hQueue )
 193 {
 194     /* FIXME: empty clipboard if needed, maybe destroy menus (Windows
 195      *        only complains about them but does nothing);
 196      */
 197
 198     WND* desktop = WIN_GetDesktop();
 199
 200     /* Patch desktop window */
 201     if( desktop->hmemTaskQ == hQueue )
 202         desktop->hmemTaskQ = GetTaskQueue16(TASK_GetNextTask(hTask));
 203
 204     USER_QueueCleanup(hQueue);
 205
 206     /* ModuleUnload() in "Internals" */
 207
 208     hInstance = GetExePtr( hInstance );
 209     if( GetModuleUsage16( hInstance ) <= 1 )
 210         USER_ModuleUnload( hInstance );
 211 }
 212
 213
 214 /***********************************************************************
 215  *           USER_ExitWindows
 216  *
 217  * Clean-up everything and exit the Wine process.
 218  * This is the back-end of ExitWindows(), called when all windows
 219  * have agreed to be terminated.
 220  */
 221 void USER_ExitWindows(void)
 222 {
 223     /* Do the clean-up stuff */
 224
 225     WriteOutProfiles16();
 226     SHELL_SaveRegistry();
 227
 228     exit(0);
 229 }
 230
 231
 232 /***********************************************************************
 233  *           USER_SignalProc (USER.314)
 234  */
 235 void WINAPI USER_SignalProc( HANDLE16 hTaskOrModule, UINT16 uCode,
 236                              UINT16 uExitFn, HINSTANCE16 hInstance,
 237                              HQUEUE16 hQueue )
 238 {
 239     switch( uCode )
 240     {
 241         case USIG_GPF:
 242         case USIG_TERMINATION:
 243              USER_AppExit( hTaskOrModule, hInstance, hQueue ); /* task */
 244              break;
 245
 246         case USIG_DLL_LOAD:
 247              USER_InstallRsrcHandler( hTaskOrModule ); /* module */
 248              break;
 249
 250         case USIG_DLL_UNLOAD:
 251              USER_ModuleUnload( hTaskOrModule ); /* module */
 252              break;
 253
 254         default:
 255              FIXME(msg,"Unimplemented USER signal: %i\n", (int)uCode );
 256     }
 257 }
 258
 259
 260 /***********************************************************************
 261  *           ExitWindows16   (USER.7)
 262  */
 263 BOOL16 WINAPI ExitWindows16( DWORD dwReturnCode, UINT16 wReserved )
 264 {
 265     return ExitWindowsEx( EWX_LOGOFF, 0xffffffff );
 266 }
 267
 268
 269 /***********************************************************************
 270  *           ExitWindowsExec16   (USER.246)
 271  */
 272 BOOL16 WINAPI ExitWindowsExec16( LPCSTR lpszExe, LPCSTR lpszParams )
 273 {
 274     TRACE(system, "Should run the following in DOS-mode: \"%s %s\"\n",
 275         lpszExe, lpszParams);
 276     return ExitWindowsEx( EWX_LOGOFF, 0xffffffff );
 277 }
 278
 279
 280 /***********************************************************************
 281  *           ExitWindowsEx   (USER32.196)
 282  */
 283 BOOL WINAPI ExitWindowsEx( UINT flags, DWORD reserved )
 284 {
 285     int i;
 286     BOOL result;
 287     WND **list, **ppWnd;
 288
 289     /* We have to build a list of all windows first, as in EnumWindows */
 290
 291     if (!(list = WIN_BuildWinArray( WIN_GetDesktop(), 0, NULL ))) return FALSE;
 292
 293     /* Send a WM_QUERYENDSESSION message to every window */
 294
 295     for (ppWnd = list, i = 0; *ppWnd; ppWnd++, i++)
 296     {
 297         /* Make sure that the window still exists */
 298         if (!IsWindow( (*ppWnd)->hwndSelf )) continue;
 299         if (!SendMessage16( (*ppWnd)->hwndSelf, WM_QUERYENDSESSION, 0, 0 ))
 300             break;
 301     }
 302     result = !(*ppWnd);
 303
 304     /* Now notify all windows that got a WM_QUERYENDSESSION of the result */
 305
 306     for (ppWnd = list; i > 0; i--, ppWnd++)
 307     {
 308         if (!IsWindow( (*ppWnd)->hwndSelf )) continue;
 309         SendMessage16( (*ppWnd)->hwndSelf, WM_ENDSESSION, result, 0 );
 310     }
 311     HeapFree( SystemHeap, 0, list );
 312
 313     if (result) USER_ExitWindows();
 314     return FALSE;
 315 }
 316
 317
 318 /***********************************************************************
 319  *           ChangeDisplaySettingA    (USER32.589)
 320  */
 321 LONG WINAPI ChangeDisplaySettingsA( LPDEVMODEA devmode, DWORD flags )
 322 {
 323   FIXME(system, ": stub\n");
 324   if (devmode==NULL)
 325     FIXME(system,"   devmode=NULL (return to default mode)\n");
 326   else if ( (devmode->dmBitsPerPel != DESKTOP_GetScreenDepth())
 327             || (devmode->dmPelsHeight != DESKTOP_GetScreenHeight())
 328             || (devmode->dmPelsWidth != DESKTOP_GetScreenWidth()) )
 329
 330   {
 331
 332     if (devmode->dmFields & DM_BITSPERPEL)
 333       FIXME(system,"   bpp=%ld\n",devmode->dmBitsPerPel);
 334     if (devmode->dmFields & DM_PELSWIDTH)
 335       FIXME(system,"   width=%ld\n",devmode->dmPelsWidth);
 336     if (devmode->dmFields & DM_PELSHEIGHT)
 337       FIXME(system,"   height=%ld\n",devmode->dmPelsHeight);
 338     FIXME(system," (Putting X in this mode beforehand might help)\n");
 339     /* we don't, but the program ... does not need to know */
 340     return DISP_CHANGE_SUCCESSFUL;
 341   }
 342   return DISP_CHANGE_SUCCESSFUL;
 343 }
 344
 345 /***********************************************************************
 346  *           EnumDisplaySettingsA   (USER32.592)
 347  * FIXME: Currently uses static list of modes.
 348  *
 349  * RETURNS
 350  *      TRUE if nth setting exists found (described in the LPDEVMODE32A struct)
 351  *      FALSE if we do not have the nth setting
 352  */
 353 BOOL WINAPI EnumDisplaySettingsA(
 354         LPCSTR name,            /* [in] huh? */
 355         DWORD n,                /* [in] nth entry in display settings list*/
 356         LPDEVMODEA devmode      /* [out] devmode for that setting */
 357 ) {
 358 #define NRMODES 5
 359 #define NRDEPTHS 4
 360         struct {
 361                 int w,h;
 362         } modes[NRMODES]={{512,384},{640,400},{640,480},{800,600},{1024,768}};
 363         int depths[4] = {8,16,24,32};
 364
 365         TRACE(system,"(%s,%ld,%p)\n",name,n,devmode);
 366         if (n==0) {
 367                 devmode->dmBitsPerPel = DESKTOP_GetScreenDepth();
 368                 devmode->dmPelsHeight = DESKTOP_GetScreenHeight();
 369                 devmode->dmPelsWidth = DESKTOP_GetScreenWidth();
 370                 return TRUE;
 371         }
 372         if ((n-1)<NRMODES*NRDEPTHS) {
 373                 devmode->dmBitsPerPel   = depths[(n-1)/NRMODES];
 374                 devmode->dmPelsHeight   = modes[(n-1)%NRMODES].h;
 375                 devmode->dmPelsWidth    = modes[(n-1)%NRMODES].w;
 376                 return TRUE;
 377         }
 378         return FALSE;
 379 }
 380
 381 /***********************************************************************
 382  *           EnumDisplaySettingsW   (USER32.593)
 383  */
 384 BOOL WINAPI EnumDisplaySettingsW(LPCWSTR name,DWORD n,LPDEVMODEW devmode) {
 385         LPSTR nameA = HEAP_strdupWtoA(GetProcessHeap(),0,name);
 386         DEVMODEA        devmodeA;
 387         BOOL ret = EnumDisplaySettingsA(nameA,n,&devmodeA);
 388
 389         if (ret) {
 390                 devmode->dmBitsPerPel   = devmodeA.dmBitsPerPel;
 391                 devmode->dmPelsHeight   = devmodeA.dmPelsHeight;
 392                 devmode->dmPelsWidth    = devmodeA.dmPelsWidth;
 393                 /* FIXME: convert rest too, if they are ever returned */
 394         }
 395         HeapFree(GetProcessHeap(),0,nameA);
 396         return ret;
 397 }
 398
 399 /***********************************************************************
 400  *           SetEventHook   (USER.321)
 401  *
 402  *      Used by Turbo Debugger for Windows
 403  */
 404 FARPROC16 WINAPI SetEventHook16(FARPROC16 lpfnEventHook)
 405 {
 406         FIXME(hook, "(lpfnEventHook=%08x): stub\n", (UINT)lpfnEventHook);
 407         return NULL;
 408 }
 409
 410 /***********************************************************************
 411  *           UserSeeUserDo   (USER.216)
 412  */
 413 DWORD WINAPI UserSeeUserDo16(WORD wReqType, WORD wParam1, WORD wParam2, WORD wParam3)
 414 {
 415     switch (wReqType)
 416     {
 417     case USUD_LOCALALLOC:
 418         return LOCAL_Alloc(USER_HeapSel, wParam1, wParam3);
 419     case USUD_LOCALFREE:
 420         return LOCAL_Free(USER_HeapSel, wParam1);
 421     case USUD_LOCALCOMPACT:
 422         return LOCAL_Compact(USER_HeapSel, wParam3, 0);
 423     case USUD_LOCALHEAP:
 424         return USER_HeapSel;
 425     case USUD_FIRSTCLASS:
 426         FIXME(local, "return a pointer to the first window class.\n");
 427         return (DWORD)-1;
 428     default:
 429         WARN(local, "wReqType %04x (unknown)", wReqType);
 430         return (DWORD)-1;
 431     }
 432 }
 433
 434 /***********************************************************************
 435  *           RegisterLogonProcess   (USER32.434)
 436  */
 437 DWORD WINAPI RegisterLogonProcess(HANDLE hprocess,BOOL x) {
 438         FIXME(win32,"(%d,%d),stub!\n",hprocess,x);
 439         return 1;
 440 }
 441
 442 /***********************************************************************
 443  *           CreateWindowStation32W   (USER32.86)
 444  */
 445 HWINSTA WINAPI CreateWindowStationW(
 446         LPWSTR winstation,DWORD res1,DWORD desiredaccess,
 447         LPSECURITY_ATTRIBUTES lpsa
 448 ) {
 449         FIXME(win32,"(%s,0x%08lx,0x%08lx,%p),stub!\n",debugstr_w(winstation),
 450                 res1,desiredaccess,lpsa
 451         );
 452         return 0xdeadcafe;
 453 }
 454
 455 /***********************************************************************
 456  *           SetProcessWindowStation   (USER32.496)
 457  */
 458 BOOL WINAPI SetProcessWindowStation(HWINSTA hWinSta) {
 459         FIXME(win32,"(%d),stub!\n",hWinSta);
 460         return TRUE;
 461 }
 462
 463 /***********************************************************************
 464  *           SetUserObjectSecurity   (USER32.514)
 465  */
 466 BOOL WINAPI SetUserObjectSecurity(
 467         HANDLE hObj,
 468         /*LPSECURITY_INFORMATION*/LPVOID pSIRequested,
 469         PSECURITY_DESCRIPTOR pSID
 470 ) {
 471         FIXME(win32,"(0x%08x,%p,%p),stub!\n",hObj,pSIRequested,pSID);
 472         return TRUE;
 473 }
 474
 475 /***********************************************************************
 476  *           CreateDesktop32W   (USER32.69)
 477  */
 478 HDESK WINAPI CreateDesktopW(
 479         LPWSTR lpszDesktop,LPWSTR lpszDevice,LPDEVMODEW pDevmode,
 480         DWORD dwFlags,DWORD dwDesiredAccess,LPSECURITY_ATTRIBUTES lpsa
 481 ) {
 482         FIXME(win32,"(%s,%s,%p,0x%08lx,0x%08lx,%p),stub!\n",
 483                 debugstr_w(lpszDesktop),debugstr_w(lpszDevice),pDevmode,
 484                 dwFlags,dwDesiredAccess,lpsa
 485         );
 486         return 0xcafedead;
 487 }
 488
 489 /***********************************************************************
 490  *           SetWindowStationUser   (USER32.521)
 491  */
 492 DWORD WINAPI SetWindowStationUser(DWORD x1,DWORD x2) {
 493         FIXME(win32,"(0x%08lx,0x%08lx),stub!\n",x1,x2);
 494         return 1;
 495 }
 496
 497 /***********************************************************************
 498  *           SetLogonNotifyWindow   (USER32.486)
 499  */
 500 DWORD WINAPI SetLogonNotifyWindow(HWINSTA hwinsta,HWND hwnd) {
 501         FIXME(win32,"(0x%x,%04x),stub!\n",hwinsta,hwnd);
 502         return 1;
 503 }
 504
 505 /***********************************************************************
 506  *           LoadLocalFonts   (USER32.486)
 507  */
 508 VOID WINAPI LoadLocalFonts(VOID) {
 509         /* are loaded. */
 510         return;
 511 }
 512 /***********************************************************************
 513  *           GetUserObjectInformation32A   (USER32.299)
 514  */
 515 BOOL WINAPI GetUserObjectInformationA( HANDLE hObj, int nIndex, LPVOID pvInfo, DWORD nLength, LPDWORD lpnLen )
 516 {       FIXME(win32,"(0x%x %i %p %ld %p),stub!\n", hObj, nIndex, pvInfo, nLength, lpnLen );
 517         return TRUE;
 518 }
 519 /***********************************************************************
 520  *           GetUserObjectInformation32W   (USER32.300)
 521  */
 522 BOOL WINAPI GetUserObjectInformationW( HANDLE hObj, int nIndex, LPVOID pvInfo, DWORD nLength, LPDWORD lpnLen )
 523 {       FIXME(win32,"(0x%x %i %p %ld %p),stub!\n", hObj, nIndex, pvInfo, nLength, lpnLen );
 524         return TRUE;
 525 }
 526 /***********************************************************************
 527  *           GetUserObjectSecurity32   (USER32.300)
 528  */
 529 BOOL WINAPI GetUserObjectSecurity(HANDLE hObj, SECURITY_INFORMATION * pSIRequested,
 530         PSECURITY_DESCRIPTOR pSID, DWORD nLength, LPDWORD lpnLengthNeeded)
 531 {       FIXME(win32,"(0x%x %p %p len=%ld %p),stub!\n",  hObj, pSIRequested, pSID, nLength, lpnLengthNeeded);
 532         return TRUE;
 533 }