dlls/commdlg/cdlg32.c

   1 /*
   2  *  Common Dialog Boxes interface (32 bit)
   3  *  Find/Replace
   4  *
   5  * Copyright 1999 Bertho A. Stultiens
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "winbase.h"
  23 #include "wine/winbase16.h"
  24 #include "commdlg.h"
  25 #include "cderr.h"
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(commdlg);
  29
  30 #include "cdlg.h"
  31
  32
  33 HINSTANCE       COMDLG32_hInstance = 0;
  34 static HINSTANCE16 COMDLG32_hInstance16;
  35
  36 static DWORD    COMDLG32_TlsIndex;
  37
  38 HINSTANCE       SHELL32_hInstance = 0;
  39 HINSTANCE       SHFOLDER_hInstance = 0;
  40
  41 /* ITEMIDLIST */
  42 LPITEMIDLIST (WINAPI *COMDLG32_PIDL_ILClone) (LPCITEMIDLIST);
  43 LPITEMIDLIST (WINAPI *COMDLG32_PIDL_ILCombine)(LPCITEMIDLIST,LPCITEMIDLIST);
  44 LPITEMIDLIST (WINAPI *COMDLG32_PIDL_ILGetNext)(LPITEMIDLIST);
  45 BOOL (WINAPI *COMDLG32_PIDL_ILRemoveLastID)(LPCITEMIDLIST);
  46 BOOL (WINAPI *COMDLG32_PIDL_ILIsEqual)(LPCITEMIDLIST, LPCITEMIDLIST);
  47
  48 /* SHELL */
  49 LPVOID (WINAPI *COMDLG32_SHAlloc)(DWORD);
  50 DWORD (WINAPI *COMDLG32_SHFree)(LPVOID);
  51 BOOL (WINAPI *COMDLG32_SHGetFolderPathA)(HWND,int,HANDLE,DWORD,LPSTR);
  52 BOOL (WINAPI *COMDLG32_SHGetFolderPathW)(HWND,int,HANDLE,DWORD,LPWSTR);
  53
  54 /***********************************************************************
  55  *      DllMain  (COMDLG32.init)
  56  *
  57  *    Initialization code for the COMDLG32 DLL
  58  *
  59  * RETURNS:
  60  *      FALSE if sibling could not be loaded or instantiated twice, TRUE
  61  *      otherwise.
  62  */
  63 static char * GPA_string = "Failed to get entry point %s for hinst = 0x%08x\n";
  64 #define GPA(dest, hinst, name) \
  65         if(!(dest = (void*)GetProcAddress(hinst,name)))\
  66         { \
  67           ERR(GPA_string, debugstr_a(name), hinst); \
  68           return FALSE; \
  69         }
  70
  71 BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD Reason, LPVOID Reserved)
  72 {
  73         TRACE("(%p, %08lx, %p)\n", hInstance, Reason, Reserved);
  74
  75         switch(Reason)
  76         {
  77         case DLL_PROCESS_ATTACH:
  78                 COMDLG32_hInstance = hInstance;
  79                 DisableThreadLibraryCalls(hInstance);
  80
  81                 COMDLG32_hInstance16 = LoadLibrary16("commdlg.dll");
  82                 COMDLG32_TlsIndex = 0xffffffff;
  83
  84                 SHELL32_hInstance = GetModuleHandleA("SHELL32.DLL");
  85
  86                 if (!SHELL32_hInstance)
  87                 {
  88                         ERR("loading of shell32 failed\n");
  89                         return FALSE;
  90                 }
  91
  92                 /* ITEMIDLIST */
  93                 GPA(COMDLG32_PIDL_ILIsEqual, SHELL32_hInstance, (LPCSTR)21L);
  94                 GPA(COMDLG32_PIDL_ILCombine, SHELL32_hInstance, (LPCSTR)25L);
  95                 GPA(COMDLG32_PIDL_ILGetNext, SHELL32_hInstance, (LPCSTR)153L);
  96                 GPA(COMDLG32_PIDL_ILClone, SHELL32_hInstance, (LPCSTR)18L);
  97                 GPA(COMDLG32_PIDL_ILRemoveLastID, SHELL32_hInstance, (LPCSTR)17L);
  98
  99                 /* SHELL */
 100
 101                 GPA(COMDLG32_SHAlloc, SHELL32_hInstance, (LPCSTR)196L);
 102                 GPA(COMDLG32_SHFree, SHELL32_hInstance, (LPCSTR)195L);
 103                 /* for the first versions of shell32 SHGetFolderPathA is in SHFOLDER.DLL */
 104                 COMDLG32_SHGetFolderPathA = (void*)GetProcAddress(SHELL32_hInstance,"SHGetFolderPathA");
 105                 if (!COMDLG32_SHGetFolderPathA)
 106                 {
 107                   SHFOLDER_hInstance = LoadLibraryA("SHFOLDER.DLL");
 108                   GPA(COMDLG32_SHGetFolderPathA, SHFOLDER_hInstance,"SHGetFolderPathA");
 109                 }
 110
 111                 /* for the first versions of shell32 SHGetFolderPathW is in SHFOLDER.DLL */
 112                 COMDLG32_SHGetFolderPathW = (void*)GetProcAddress(SHELL32_hInstance,"SHGetFolderPathW");
 113                 if (!COMDLG32_SHGetFolderPathW)
 114                 {
 115                   SHFOLDER_hInstance = LoadLibraryA("SHFOLDER.DLL");
 116                   GPA(COMDLG32_SHGetFolderPathW, SHFOLDER_hInstance,"SHGetFolderPathW");
 117                 }
 118
 119                 break;
 120
 121         case DLL_PROCESS_DETACH:
 122             if (COMDLG32_TlsIndex != 0xffffffff) TlsFree(COMDLG32_TlsIndex);
 123             if(COMDLG32_hInstance16) FreeLibrary16(COMDLG32_hInstance16);
 124             if(SHFOLDER_hInstance) FreeLibrary(SHFOLDER_hInstance);
 125             break;
 126         }
 127         return TRUE;
 128 }
 129 #undef GPA
 130
 131 /***********************************************************************
 132  *      COMDLG32_AllocMem                       (internal)
 133  * Get memory for internal datastructure plus stringspace etc.
 134  *      RETURNS
 135  *              Pointer to a heap block: Succes
 136  *              NULL: Failure
 137  */
 138 LPVOID COMDLG32_AllocMem(
 139         int size        /* [in] Block size to allocate */
 140 ) {
 141         LPVOID ptr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
 142         if(!ptr)
 143         {
 144                 COMDLG32_SetCommDlgExtendedError(CDERR_MEMALLOCFAILURE);
 145                 return NULL;
 146         }
 147         return ptr;
 148 }
 149
 150
 151 /***********************************************************************
 152  *      COMDLG32_SetCommDlgExtendedError        (internal)
 153  *
 154  * Used to set the thread's local error value if a comdlg32 function fails.
 155  */
 156 void COMDLG32_SetCommDlgExtendedError(DWORD err)
 157 {
 158         TRACE("(%08lx)\n", err);
 159         if (COMDLG32_TlsIndex == 0xffffffff)
 160           COMDLG32_TlsIndex = TlsAlloc();
 161         if (COMDLG32_TlsIndex != 0xffffffff)
 162           TlsSetValue(COMDLG32_TlsIndex, (void *)err);
 163         else
 164           FIXME("No Tls Space\n");
 165 }
 166
 167
 168 /***********************************************************************
 169  *      CommDlgExtendedError                    (COMMDLG.26)
 170  *      CommDlgExtendedError                    (COMDLG32.@)
 171  *
 172  * Get the thread's local error value if a comdlg32 function fails.
 173  *      RETURNS
 174  *              Current error value which might not be valid
 175  *              if a previous call succeeded.
 176  */
 177 DWORD WINAPI CommDlgExtendedError(void)
 178 {
 179         if (COMDLG32_TlsIndex != 0xffffffff)
 180           return (DWORD)TlsGetValue(COMDLG32_TlsIndex);
 181         else
 182           return 0; /* we never set an error, so there isn't one */
 183 }