windows/user.c

   1 /*
   2  * Misc. USER functions
   3  *
   4  * Copyright 1993 Robert J. Amstadt
   5  *           1996 Alex Korobka
   6  */
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include "windows.h"
  11 #include "resource.h"
  12 #include "heap.h"
  13 #include "gdi.h"
  14 #include "user.h"
  15 #include "task.h"
  16 #include "queue.h"
  17 #include "win.h"
  18 #include "clipboard.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
  27 extern BOOL32 MENU_PatchResidentPopup( HQUEUE16, WND* );
  28 extern void QUEUE_FlushMessages(HQUEUE16);
  29
  30 /***********************************************************************
  31  *           GetFreeSystemResources   (USER.284)
  32  */
  33 WORD WINAPI GetFreeSystemResources( WORD resType )
  34 {
  35     int userPercent, gdiPercent;
  36
  37     switch(resType)
  38     {
  39     case GFSR_USERRESOURCES:
  40         userPercent = (int)LOCAL_CountFree( USER_HeapSel ) * 100 /
  41                                LOCAL_HeapSize( USER_HeapSel );
  42         gdiPercent  = 100;
  43         break;
  44
  45     case GFSR_GDIRESOURCES:
  46         gdiPercent  = (int)LOCAL_CountFree( GDI_HeapSel ) * 100 /
  47                                LOCAL_HeapSize( GDI_HeapSel );
  48         userPercent = 100;
  49         break;
  50
  51     case GFSR_SYSTEMRESOURCES:
  52         userPercent = (int)LOCAL_CountFree( USER_HeapSel ) * 100 /
  53                                LOCAL_HeapSize( USER_HeapSel );
  54         gdiPercent  = (int)LOCAL_CountFree( GDI_HeapSel ) * 100 /
  55                                LOCAL_HeapSize( GDI_HeapSel );
  56         break;
  57
  58     default:
  59         return 0;
  60     }
  61     return (WORD)MIN( userPercent, gdiPercent );
  62 }
  63
  64
  65 /***********************************************************************
  66  *           SystemHeapInfo   (TOOLHELP.71)
  67  */
  68 BOOL16 WINAPI SystemHeapInfo( SYSHEAPINFO *pHeapInfo )
  69 {
  70     pHeapInfo->wUserFreePercent = GetFreeSystemResources( GFSR_USERRESOURCES );
  71     pHeapInfo->wGDIFreePercent  = GetFreeSystemResources( GFSR_GDIRESOURCES );
  72     pHeapInfo->hUserSegment = USER_HeapSel;
  73     pHeapInfo->hGDISegment  = GDI_HeapSel;
  74     return TRUE;
  75 }
  76
  77
  78 /***********************************************************************
  79  *           TimerCount   (TOOLHELP.80)
  80  */
  81 BOOL16 WINAPI TimerCount( TIMERINFO *pTimerInfo )
  82 {
  83     /* FIXME
  84      * In standard mode, dwmsSinceStart = dwmsThisVM
  85      *
  86      * I tested this, under Windows in enhanced mode, and
  87      * if you never switch VM (ie start/stop DOS) these
  88      * values should be the same as well.
  89      *
  90      * Also, Wine should adjust for the hardware timer
  91      * to reduce the amount of error to ~1ms.
  92      * I can't be bothered, can you?
  93      */
  94     pTimerInfo->dwmsSinceStart = pTimerInfo->dwmsThisVM = GetTickCount();
  95     return TRUE;
  96 }
  97
  98 static RESOURCEHANDLER16 __r16loader = NULL;
  99
 100 /**********************************************************************
 101  *           USER_CallDefaultRsrcHandler
 102  *
 103  * Called by the LoadDIBIcon/CursorHandler().
 104  */
 105 HGLOBAL16 USER_CallDefaultRsrcHandler( HGLOBAL16 hMemObj, HMODULE16 hModule, HRSRC16 hRsrc )
 106 {
 107     return __r16loader( hMemObj, hModule, hRsrc );
 108 }
 109
 110 /**********************************************************************
 111  *           USER_InstallRsrcHandler
 112  */
 113 static void USER_InstallRsrcHandler( HINSTANCE16 hInstance )
 114 {
 115     FARPROC16 proc;
 116
 117     /* SetResourceHandler() returns previous function which is set
 118      * when a module's resource table is loaded. */
 119
 120     proc = SetResourceHandler( hInstance, RT_ICON16,
 121                                (FARPROC32)LoadDIBIconHandler );
 122     if(!__r16loader )
 123         __r16loader = (RESOURCEHANDLER16)proc;
 124     proc = SetResourceHandler( hInstance, RT_CURSOR16,
 125                                (FARPROC32)LoadDIBCursorHandler );
 126     if(!__r16loader )
 127         __r16loader = (RESOURCEHANDLER16)proc;
 128 }
 129
 130 /**********************************************************************
 131  *           InitApp   (USER.5)
 132  */
 133 INT16 WINAPI InitApp( HINSTANCE16 hInstance )
 134 {
 135     int queueSize;
 136
 137       /* InitTask() calls LibMain()'s of implicitly loaded DLLs
 138        * prior to InitApp() so there is no clean way to do
 139        * SetTaskSignalHandler() in time. So, broken Windows bypasses
 140        * a pTask->userhandler on startup and simply calls a global
 141        * function pointer to the default USER signal handler.
 142        */
 143
 144     USER_InstallRsrcHandler( hInstance );
 145
 146     /* Hack: restore the divide-by-zero handler */
 147     /* FIXME: should set a USER-specific handler that displays a msg box */
 148     INT_SetHandler( 0, INT_GetHandler( 0xff ) );
 149
 150       /* Create task message queue */
 151     queueSize = GetProfileInt32A( "windows", "DefaultQueueSize", 8 );
 152     if (!SetMessageQueue32( queueSize )) return 0;
 153
 154     return 1;
 155 }
 156
 157 /**********************************************************************
 158  *           USER_ModuleUnload
 159  */
 160 static void USER_ModuleUnload( HMODULE16 hModule )
 161 {
 162     HOOK_FreeModuleHooks( hModule );
 163     CLASS_FreeModuleClasses( hModule );
 164 }
 165
 166 /**********************************************************************
 167  *           USER_AppExit
 168  */
 169 static void USER_AppExit( HTASK16 hTask, HINSTANCE16 hInstance, HQUEUE16 hQueue )
 170 {
 171     /* FIXME: empty clipboard if needed, maybe destroy menus (Windows
 172      *        only complains about them but does nothing);
 173      */
 174
 175     WND* desktop = WIN_GetDesktop();
 176
 177     /* Patch desktop window */
 178     if( desktop->hmemTaskQ == hQueue )
 179         desktop->hmemTaskQ = GetTaskQueue(TASK_GetNextTask(hTask));
 180
 181     /* Patch resident popup menu window */
 182     MENU_PatchResidentPopup( hQueue, NULL );
 183
 184     TIMER_RemoveQueueTimers( hQueue );
 185
 186     QUEUE_FlushMessages( hQueue );
 187     HOOK_FreeQueueHooks( hQueue );
 188
 189     QUEUE_SetExitingQueue( hQueue );
 190     WIN_ResetQueueWindows( desktop, hQueue, (HQUEUE16)0);
 191     CLIPBOARD_ResetLock( hQueue, 0 );
 192     QUEUE_SetExitingQueue( 0 );
 193
 194     /* Free the message queue */
 195
 196     QUEUE_DeleteMsgQueue( hQueue );
 197
 198     /* ModuleUnload() in "Internals" */
 199
 200     hInstance = GetExePtr( hInstance );
 201     if( GetModuleUsage( hInstance ) <= 1 )
 202         USER_ModuleUnload( hInstance );
 203 }
 204
 205
 206 /***********************************************************************
 207  *           USER_ExitWindows
 208  *
 209  * Clean-up everything and exit the Wine process.
 210  * This is the back-end of ExitWindows(), called when all windows
 211  * have agreed to be terminated.
 212  */
 213 void USER_ExitWindows(void)
 214 {
 215     /* Do the clean-up stuff */
 216
 217     WriteOutProfiles();
 218     SHELL_SaveRegistry();
 219
 220     exit(0);
 221 }
 222
 223
 224 /***********************************************************************
 225  *           USER_SignalProc (USER.314)
 226  */
 227 void WINAPI USER_SignalProc( HANDLE16 hTaskOrModule, UINT16 uCode,
 228                              UINT16 uExitFn, HINSTANCE16 hInstance,
 229                              HQUEUE16 hQueue )
 230 {
 231     switch( uCode )
 232     {
 233         case USIG_GPF:
 234         case USIG_TERMINATION:
 235              USER_AppExit( hTaskOrModule, hInstance, hQueue ); /* task */
 236              break;
 237
 238         case USIG_DLL_LOAD:
 239              USER_InstallRsrcHandler( hTaskOrModule ); /* module */
 240              break;
 241
 242         case USIG_DLL_UNLOAD:
 243              USER_ModuleUnload( hTaskOrModule ); /* module */
 244              break;
 245
 246         default:
 247              fprintf(stderr,"Unimplemented USER signal: %i\n", (int)uCode );
 248     }
 249 }
 250
 251
 252 /***********************************************************************
 253  *           ExitWindows16   (USER.7)
 254  */
 255 BOOL16 WINAPI ExitWindows16( DWORD dwReturnCode, UINT16 wReserved )
 256 {
 257     return ExitWindowsEx( EWX_LOGOFF, 0xffffffff );
 258 }
 259
 260
 261 /***********************************************************************
 262  *           ExitWindowsExec16   (USER.246)
 263  */
 264 BOOL16 WINAPI ExitWindowsExec16( LPCSTR lpszExe, LPCSTR lpszParams )
 265 {
 266     fprintf(stderr, "ExitWindowsExec() : Should run the following in DOS-mode :\n\t\"%s %s\"\n",
 267         lpszExe, lpszParams);
 268     return ExitWindowsEx( EWX_LOGOFF, 0xffffffff );
 269 }
 270
 271
 272 /***********************************************************************
 273  *           ExitWindowsEx   (USER32.196)
 274  */
 275 BOOL32 WINAPI ExitWindowsEx( UINT32 flags, DWORD reserved )
 276 {
 277     int i;
 278     BOOL32 result;
 279     WND **list, **ppWnd;
 280
 281     /* We have to build a list of all windows first, as in EnumWindows */
 282
 283     if (!(list = WIN_BuildWinArray( WIN_GetDesktop(), 0, NULL ))) return FALSE;
 284
 285     /* Send a WM_QUERYENDSESSION message to every window */
 286
 287     for (ppWnd = list, i = 0; *ppWnd; ppWnd++, i++)
 288     {
 289         /* Make sure that the window still exists */
 290         if (!IsWindow32( (*ppWnd)->hwndSelf )) continue;
 291         if (!SendMessage16( (*ppWnd)->hwndSelf, WM_QUERYENDSESSION, 0, 0 ))
 292             break;
 293     }
 294     result = !(*ppWnd);
 295
 296     /* Now notify all windows that got a WM_QUERYENDSESSION of the result */
 297
 298     for (ppWnd = list; i > 0; i--, ppWnd++)
 299     {
 300         if (!IsWindow32( (*ppWnd)->hwndSelf )) continue;
 301         SendMessage16( (*ppWnd)->hwndSelf, WM_ENDSESSION, result, 0 );
 302     }
 303     HeapFree( SystemHeap, 0, list );
 304
 305     if (result) USER_ExitWindows();
 306     return FALSE;
 307 }
 308
 309 /***********************************************************************
 310  *           EnumDisplaySettingsA   (USER32.592)
 311  */
 312 BOOL32 WINAPI EnumDisplaySettings32A(LPCSTR name,DWORD n,LPDEVMODE32A devmode) {
 313         fprintf(stderr,"EnumDisplaySettings32A(%s,%ld,%p)\n",name,n,devmode);
 314         if (n==0) {
 315                 devmode->dmBitsPerPel = DefaultDepthOfScreen(screen);
 316                 devmode->dmPelsHeight = screenHeight;
 317                 devmode->dmPelsWidth = screenWidth;
 318                 return TRUE;
 319         }
 320         return FALSE;
 321 }
 322
 323
 324 /***********************************************************************
 325  *           SetEventHook   (USER.321)
 326  *
 327  *      Used by Turbo Debugger for Windows
 328  */
 329 FARPROC16 SetEventHook(FARPROC16 lpfnEventHook)
 330 {
 331         fprintf(stderr, "SetEventHook(lpfnEventHook = %08x): stub !\n", (UINT32)lpfnEventHook);
 332         return NULL;
 333 }
 334
 335 /***********************************************************************
 336  *           UserSeeUserDo   (USER.216)
 337  */
 338 DWORD WINAPI UserSeeUserDo(WORD wReqType, WORD wParam1, WORD wParam2, WORD wParam3)
 339 {
 340     switch (wReqType)
 341     {
 342     case USUD_LOCALALLOC:
 343         return LOCAL_Alloc(USER_HeapSel, wParam1, wParam3);
 344     case USUD_LOCALFREE:
 345         return LOCAL_Free(USER_HeapSel, wParam1);
 346     case USUD_LOCALCOMPACT:
 347         return LOCAL_Compact(USER_HeapSel, wParam3, 0);
 348     case USUD_LOCALHEAP:
 349         return USER_HeapSel;
 350     case USUD_FIRSTCLASS:
 351         FIXME(local, "return a pointer to the first window class.\n");
 352         return (DWORD)-1;
 353     default:
 354         WARN(local, "wReqType %04x (unknown)", wReqType);
 355         return (DWORD)-1;
 356     }
 357 }
 358