dlls/commdlg/generic.c

   1 /*
   2  * COMMDLG/COMDLG32 functions
   3  *
   4  * Copyright 1994 Martin Ayotte
   5  * Copyright 1996 Albrecht Kleine
   6  * Copyright 1998,1999 Bertho Stultiens
   7  * Copyright 1999 Klaas van Gend
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23
  24 #include "winbase.h"
  25 #include "commdlg.h"
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(commdlg);
  29
  30 #include "cdlg.h"
  31
  32 HINSTANCE16     COMMDLG_hInstance = 0;
  33 HINSTANCE       COMMDLG_hInstance32 = 0;
  34 static int      COMMDLG_Attach = 0;
  35
  36 /***********************************************************************
  37  *      DllEntryPoint                   [COMMDLG.32]
  38  *
  39  *    Initialization code for the COMMDLG DLL
  40  *
  41  * RETURNS:
  42  */
  43 BOOL WINAPI COMMDLG_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst, WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  44 {
  45         TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n", Reason, hInst, ds, HeapSize, res1, res2);
  46         switch(Reason)
  47         {
  48         case DLL_PROCESS_ATTACH:
  49                 if (COMMDLG_Attach++) break;
  50                 COMMDLG_hInstance = hInst;
  51                 if(!COMMDLG_hInstance32)
  52                 {
  53                         if(!(COMMDLG_hInstance32 = LoadLibraryA("comdlg32.dll")))
  54                         {
  55                                 ERR("Could not load sibling comdlg32.dll\n");
  56                                 return FALSE;
  57                         }
  58                 }
  59                 break;
  60
  61         case DLL_PROCESS_DETACH:
  62                 if(!--COMMDLG_Attach)
  63                 {
  64                         COMMDLG_hInstance = 0;
  65                         if(COMMDLG_hInstance32)
  66                                 FreeLibrary(COMMDLG_hInstance32);
  67                 }
  68                 break;
  69         }
  70         return TRUE;
  71 }
  72
  73
  74 /***********************************************************************
  75  *      CommDlgExtendedError16                  [COMMDLG.26]
  76  *
  77  * Get the last error value if a commdlg function fails.
  78  *      RETURNS
  79  *              Current error value which might not be valid
  80  *              if a previous call succeeded.
  81  */
  82 DWORD WINAPI CommDlgExtendedError16(void)
  83 {
  84         return CommDlgExtendedError();
  85 }