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 "windows.h"
  10 #include "resource.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 "queue.h"
  26 #include "shell.h"
  27 #include "callback.h"
  28
  29 /***********************************************************************
  30  *           GetFreeSystemResources   (USER.284)
  31  */
  32 WORD WINAPI GetFreeSystemResources( WORD resType )
  33 {
  34     int userPercent, gdiPercent;
  35
  36     switch(resType)
  37     {
  38     case GFSR_USERRESOURCES:
  39         userPercent = (int)LOCAL_CountFree( USER_HeapSel ) * 100 /
  40                                LOCAL_HeapSize( USER_HeapSel );
  41         gdiPercent  = 100;
  42         break;
  43
  44     case GFSR_GDIRESOURCES:
  45         gdiPercent  = (int)LOCAL_CountFree( GDI_HeapSel ) * 100 /
  46                                LOCAL_HeapSize( GDI_HeapSel );
  47         userPercent = 100;
  48         break;
  49
  50     case GFSR_SYSTEMRESOURCES:
  51         userPercent = (int)LOCAL_CountFree( USER_HeapSel ) * 100 /
  52                                LOCAL_HeapSize( USER_HeapSel );
  53         gdiPercent  = (int)LOCAL_CountFree( GDI_HeapSel ) * 100 /
  54                                LOCAL_HeapSize( GDI_HeapSel );
  55         break;
  56
  57     default:
  58         return 0;
  59     }
  60     return (WORD)MIN( userPercent, gdiPercent );
  61 }
  62
  63
  64 /***********************************************************************
  65  *           SystemHeapInfo   (TOOLHELP.71)
  66  */
  67 BOOL16 WINAPI SystemHeapInfo( SYSHEAPINFO *pHeapInfo )
  68 {
  69     pHeapInfo->wUserFreePercent = GetFreeSystemResources( GFSR_USERRESOURCES );
  70     pHeapInfo->wGDIFreePercent  = GetFreeSystemResources( GFSR_GDIRESOURCES );
  71     pHeapInfo->hUserSegment = USER_HeapSel;
  72     pHeapInfo->hGDISegment  = GDI_HeapSel;
  73     return TRUE;
  74 }
  75
  76
  77 /***********************************************************************
  78  *           TimerCount   (TOOLHELP.80)
  79  */
  80 BOOL16 WINAPI TimerCount( TIMERINFO *pTimerInfo )
  81 {
  82     /* FIXME
  83      * In standard mode, dwmsSinceStart = dwmsThisVM
  84      *
  85      * I tested this, under Windows in enhanced mode, and
  86      * if you never switch VM (ie start/stop DOS) these
  87      * values should be the same as well.
  88      *
  89      * Also, Wine should adjust for the hardware timer
  90      * to reduce the amount of error to ~1ms.
  91      * I can't be bothered, can you?
  92      */
  93     pTimerInfo->dwmsSinceStart = pTimerInfo->dwmsThisVM = GetTickCount();
  94     return TRUE;
  95 }
  96
  97 static FARPROC16 __r16loader = NULL;
  98
  99 /**********************************************************************
 100  *           USER_CallDefaultRsrcHandler
 101  *
 102  * Called by the LoadDIBIcon/CursorHandler().
 103  */
 104 HGLOBAL16 USER_CallDefaultRsrcHandler( HGLOBAL16 hMemObj, HMODULE16 hModule, HRSRC16 hRsrc )
 105 {
 106     return Callbacks->CallResourceHandlerProc( __r16loader, hMemObj, hModule, hRsrc );
 107 }
 108
 109 /**********************************************************************
 110  *           USER_InstallRsrcHandler
 111  */
 112 static void USER_InstallRsrcHandler( HINSTANCE16 hInstance )
 113 {
 114     FARPROC16 proc;
 115
 116     /* SetResourceHandler() returns previous function which is set
 117      * when a module's resource table is loaded. */
 118
 119     proc = SetResourceHandler( hInstance, RT_ICON16,
 120                                MODULE_GetWndProcEntry16("LoadDIBIconHandler") );
 121     if (!__r16loader) __r16loader = proc;
 122
 123     proc = SetResourceHandler( hInstance, RT_CURSOR16,
 124                                MODULE_GetWndProcEntry16("LoadDIBCursorHandler") );
 125     if (!__r16loader) __r16loader = proc;
 126 }
 127
 128 /**********************************************************************
 129  *           InitApp   (USER.5)
 130  */
 131 INT16 WINAPI InitApp( HINSTANCE16 hInstance )
 132 {
 133     int queueSize;
 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     queueSize = GetProfileInt32A( "windows", "DefaultQueueSize", 8 );
 150     if (!SetMessageQueue32( queueSize )) return 0;
 151
 152     return 1;
 153 }
 154
 155 /**********************************************************************
 156  *           USER_ModuleUnload
 157  */
 158 static void USER_ModuleUnload( HMODULE16 hModule )
 159 {
 160     HOOK_FreeModuleHooks( hModule );
 161     CLASS_FreeModuleClasses( hModule );
 162 }
 163
 164 /**********************************************************************
 165  *           USER_AppExit
 166  */
 167 static void USER_AppExit( HTASK16 hTask, HINSTANCE16 hInstance, HQUEUE16 hQueue )
 168 {
 169     /* FIXME: empty clipboard if needed, maybe destroy menus (Windows
 170      *        only complains about them but does nothing);
 171      */
 172
 173     WND* desktop = WIN_GetDesktop();
 174
 175     /* Patch desktop window */
 176     if( desktop->hmemTaskQ == hQueue )
 177         desktop->hmemTaskQ = GetTaskQueue(TASK_GetNextTask(hTask));
 178
 179     /* Patch resident popup menu window */
 180     MENU_PatchResidentPopup( hQueue, NULL );
 181
 182     TIMER_RemoveQueueTimers( hQueue );
 183
 184     QUEUE_FlushMessages( hQueue );
 185     HOOK_FreeQueueHooks( hQueue );
 186
 187     QUEUE_SetExitingQueue( hQueue );
 188     WIN_ResetQueueWindows( desktop, hQueue, (HQUEUE16)0);
 189     CLIPBOARD_ResetLock( hQueue, 0 );
 190     QUEUE_SetExitingQueue( 0 );
 191
 192     /* Free the message queue */
 193
 194     QUEUE_DeleteMsgQueue( hQueue );
 195
 196     /* ModuleUnload() in "Internals" */
 197
 198     hInstance = GetExePtr( hInstance );
 199     if( GetModuleUsage( hInstance ) <= 1 )
 200         USER_ModuleUnload( hInstance );
 201 }
 202
 203
 204 /***********************************************************************
 205  *           USER_ExitWindows
 206  *
 207  * Clean-up everything and exit the Wine process.
 208  * This is the back-end of ExitWindows(), called when all windows
 209  * have agreed to be terminated.
 210  */
 211 void USER_ExitWindows(void)
 212 {
 213     /* Do the clean-up stuff */
 214
 215     WriteOutProfiles();
 216     SHELL_SaveRegistry();
 217
 218     exit(0);
 219 }
 220
 221
 222 /***********************************************************************
 223  *           USER_SignalProc (USER.314)
 224  */
 225 void WINAPI USER_SignalProc( HANDLE16 hTaskOrModule, UINT16 uCode,
 226                              UINT16 uExitFn, HINSTANCE16 hInstance,
 227                              HQUEUE16 hQueue )
 228 {
 229     switch( uCode )
 230     {
 231         case USIG_GPF:
 232         case USIG_TERMINATION:
 233              USER_AppExit( hTaskOrModule, hInstance, hQueue ); /* task */
 234              break;
 235
 236         case USIG_DLL_LOAD:
 237              USER_InstallRsrcHandler( hTaskOrModule ); /* module */
 238              break;
 239
 240         case USIG_DLL_UNLOAD:
 241              USER_ModuleUnload( hTaskOrModule ); /* module */
 242              break;
 243
 244         default:
 245              FIXME(msg,"Unimplemented USER signal: %i\n", (int)uCode );
 246     }
 247 }
 248
 249
 250 /***********************************************************************
 251  *           ExitWindows16   (USER.7)
 252  */
 253 BOOL16 WINAPI ExitWindows16( DWORD dwReturnCode, UINT16 wReserved )
 254 {
 255     return ExitWindowsEx( EWX_LOGOFF, 0xffffffff );
 256 }
 257
 258
 259 /***********************************************************************
 260  *           ExitWindowsExec16   (USER.246)
 261  */
 262 BOOL16 WINAPI ExitWindowsExec16( LPCSTR lpszExe, LPCSTR lpszParams )
 263 {
 264     TRACE(system, "Should run the following in DOS-mode: \"%s %s\"\n",
 265         lpszExe, lpszParams);
 266     return ExitWindowsEx( EWX_LOGOFF, 0xffffffff );
 267 }
 268
 269
 270 /***********************************************************************
 271  *           ExitWindowsEx   (USER32.196)
 272  */
 273 BOOL32 WINAPI ExitWindowsEx( UINT32 flags, DWORD reserved )
 274 {
 275     int i;
 276     BOOL32 result;
 277     WND **list, **ppWnd;
 278
 279     /* We have to build a list of all windows first, as in EnumWindows */
 280
 281     if (!(list = WIN_BuildWinArray( WIN_GetDesktop(), 0, NULL ))) return FALSE;
 282
 283     /* Send a WM_QUERYENDSESSION message to every window */
 284
 285     for (ppWnd = list, i = 0; *ppWnd; ppWnd++, i++)
 286     {
 287         /* Make sure that the window still exists */
 288         if (!IsWindow32( (*ppWnd)->hwndSelf )) continue;
 289         if (!SendMessage16( (*ppWnd)->hwndSelf, WM_QUERYENDSESSION, 0, 0 ))
 290             break;
 291     }
 292     result = !(*ppWnd);
 293
 294     /* Now notify all windows that got a WM_QUERYENDSESSION of the result */
 295
 296     for (ppWnd = list; i > 0; i--, ppWnd++)
 297     {
 298         if (!IsWindow32( (*ppWnd)->hwndSelf )) continue;
 299         SendMessage16( (*ppWnd)->hwndSelf, WM_ENDSESSION, result, 0 );
 300     }
 301     HeapFree( SystemHeap, 0, list );
 302
 303     if (result) USER_ExitWindows();
 304     return FALSE;
 305 }
 306
 307
 308 /***********************************************************************
 309  *           ChangeDisplaySettingA    (USER32.589)
 310  */
 311 LONG WINAPI ChangeDisplaySettings32A( LPDEVMODE32A devmode, DWORD flags )
 312 {
 313   FIXME(system, ": stub\n");
 314   if (devmode==NULL)
 315     FIXME(system,"   devmode=NULL (return to default mode)\n");
 316   else if ( (devmode->dmBitsPerPel != DefaultDepthOfScreen(screen))
 317             || (devmode->dmPelsHeight != screenHeight)
 318             || (devmode->dmPelsWidth != screenWidth) )
 319
 320   {
 321
 322     if (devmode->dmFields & DM_BITSPERPEL)
 323       FIXME(system,"   bpp=%ld\n",devmode->dmBitsPerPel);
 324     if (devmode->dmFields & DM_PELSWIDTH)
 325       FIXME(system,"   width=%ld\n",devmode->dmPelsWidth);
 326     if (devmode->dmFields & DM_PELSHEIGHT)
 327       FIXME(system,"   height=%ld\n",devmode->dmPelsHeight);
 328     FIXME(system," (Putting X in this mode beforehand might help)\n");
 329   }
 330   return DISP_CHANGE_SUCCESSFUL;
 331 }
 332
 333
 334 /***********************************************************************
 335  *           EnumDisplaySettingsA   (USER32.592)
 336  */
 337 BOOL32 WINAPI EnumDisplaySettings32A(LPCSTR name,DWORD n,LPDEVMODE32A devmode) {
 338         TRACE(system,"(%s,%ld,%p)\n",name,n,devmode);
 339         if (n==0) {
 340                 devmode->dmBitsPerPel = DefaultDepthOfScreen(screen);
 341                 devmode->dmPelsHeight = screenHeight;
 342                 devmode->dmPelsWidth = screenWidth;
 343                 return TRUE;
 344         }
 345         return FALSE;
 346 }
 347
 348
 349 /***********************************************************************
 350  *           SetEventHook   (USER.321)
 351  *
 352  *      Used by Turbo Debugger for Windows
 353  */
 354 FARPROC16 WINAPI SetEventHook(FARPROC16 lpfnEventHook)
 355 {
 356         FIXME(hook, "(lpfnEventHook=%08x): stub\n", (UINT32)lpfnEventHook);
 357         return NULL;
 358 }
 359
 360 /***********************************************************************
 361  *           UserSeeUserDo   (USER.216)
 362  */
 363 DWORD WINAPI UserSeeUserDo(WORD wReqType, WORD wParam1, WORD wParam2, WORD wParam3)
 364 {
 365     switch (wReqType)
 366     {
 367     case USUD_LOCALALLOC:
 368         return LOCAL_Alloc(USER_HeapSel, wParam1, wParam3);
 369     case USUD_LOCALFREE:
 370         return LOCAL_Free(USER_HeapSel, wParam1);
 371     case USUD_LOCALCOMPACT:
 372         return LOCAL_Compact(USER_HeapSel, wParam3, 0);
 373     case USUD_LOCALHEAP:
 374         return USER_HeapSel;
 375     case USUD_FIRSTCLASS:
 376         FIXME(local, "return a pointer to the first window class.\n");
 377         return (DWORD)-1;
 378     default:
 379         WARN(local, "wReqType %04x (unknown)", wReqType);
 380         return (DWORD)-1;
 381     }
 382 }
 383