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 "commdlg.h"
  24 #include "cderr.h"
  25 #include "wine/debug.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(commdlg);
  28
  29 #include "cdlg.h"
  30
  31
  32 HINSTANCE       COMDLG32_hInstance = 0;
  33
  34 static DWORD    COMDLG32_TlsIndex;
  35
  36 HINSTANCE       SHELL32_hInstance = 0;
  37 HINSTANCE       SHFOLDER_hInstance = 0;
  38
  39 /* ITEMIDLIST */
  40 LPITEMIDLIST (WINAPI *COMDLG32_PIDL_ILClone) (LPCITEMIDLIST);
  41 LPITEMIDLIST (WINAPI *COMDLG32_PIDL_ILCombine)(LPCITEMIDLIST,LPCITEMIDLIST);
  42 LPITEMIDLIST (WINAPI *COMDLG32_PIDL_ILGetNext)(LPITEMIDLIST);
  43 BOOL (WINAPI *COMDLG32_PIDL_ILRemoveLastID)(LPCITEMIDLIST);
  44 BOOL (WINAPI *COMDLG32_PIDL_ILIsEqual)(LPCITEMIDLIST, LPCITEMIDLIST);
  45
  46 /* SHELL */
  47 LPVOID (WINAPI *COMDLG32_SHAlloc)(DWORD);
  48 DWORD (WINAPI *COMDLG32_SHFree)(LPVOID);
  49 BOOL (WINAPI *COMDLG32_SHGetFolderPathA)(HWND,int,HANDLE,DWORD,LPSTR);
  50 BOOL (WINAPI *COMDLG32_SHGetFolderPathW)(HWND,int,HANDLE,DWORD,LPWSTR);
  51
  52 /***********************************************************************
  53  *      DllMain  (COMDLG32.init)
  54  *
  55  *    Initialization code for the COMDLG32 DLL
  56  *
  57  * RETURNS:
  58  *      FALSE if sibling could not be loaded or instantiated twice, TRUE
  59  *      otherwise.
  60  */
  61 static char * GPA_string = "Failed to get entry point %s for hinst = 0x%08x\n";
  62 #define GPA(dest, hinst, name) \
  63         if(!(dest = (void*)GetProcAddress(hinst,name)))\
  64         { \
  65           ERR(GPA_string, debugstr_a(name), hinst); \
  66           return FALSE; \
  67         }
  68
  69 BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD Reason, LPVOID Reserved)
  70 {
  71         TRACE("(%p, %08lx, %p)\n", hInstance, Reason, Reserved);
  72
  73         switch(Reason)
  74         {
  75         case DLL_PROCESS_ATTACH:
  76                 COMDLG32_hInstance = hInstance;
  77                 DisableThreadLibraryCalls(hInstance);
  78
  79                 COMDLG32_TlsIndex = 0xffffffff;
  80
  81                 SHELL32_hInstance = GetModuleHandleA("SHELL32.DLL");
  82
  83                 if (!SHELL32_hInstance)
  84                 {
  85                         ERR("loading of shell32 failed\n");
  86                         return FALSE;
  87                 }
  88
  89                 /* ITEMIDLIST */
  90                 GPA(COMDLG32_PIDL_ILIsEqual, SHELL32_hInstance, (LPCSTR)21L);
  91                 GPA(COMDLG32_PIDL_ILCombine, SHELL32_hInstance, (LPCSTR)25L);
  92                 GPA(COMDLG32_PIDL_ILGetNext, SHELL32_hInstance, (LPCSTR)153L);
  93                 GPA(COMDLG32_PIDL_ILClone, SHELL32_hInstance, (LPCSTR)18L);
  94                 GPA(COMDLG32_PIDL_ILRemoveLastID, SHELL32_hInstance, (LPCSTR)17L);
  95
  96                 /* SHELL */
  97
  98                 GPA(COMDLG32_SHAlloc, SHELL32_hInstance, (LPCSTR)196L);
  99                 GPA(COMDLG32_SHFree, SHELL32_hInstance, (LPCSTR)195L);
 100                 /* for the first versions of shell32 SHGetFolderPathA is in SHFOLDER.DLL */
 101                 COMDLG32_SHGetFolderPathA = (void*)GetProcAddress(SHELL32_hInstance,"SHGetFolderPathA");
 102                 if (!COMDLG32_SHGetFolderPathA)
 103                 {
 104                   SHFOLDER_hInstance = LoadLibraryA("SHFOLDER.DLL");
 105                   GPA(COMDLG32_SHGetFolderPathA, SHFOLDER_hInstance,"SHGetFolderPathA");
 106                 }
 107
 108                 /* for the first versions of shell32 SHGetFolderPathW is in SHFOLDER.DLL */
 109                 COMDLG32_SHGetFolderPathW = (void*)GetProcAddress(SHELL32_hInstance,"SHGetFolderPathW");
 110                 if (!COMDLG32_SHGetFolderPathW)
 111                 {
 112                   SHFOLDER_hInstance = LoadLibraryA("SHFOLDER.DLL");
 113                   GPA(COMDLG32_SHGetFolderPathW, SHFOLDER_hInstance,"SHGetFolderPathW");
 114                 }
 115
 116                 break;
 117
 118         case DLL_PROCESS_DETACH:
 119             if (COMDLG32_TlsIndex != 0xffffffff) TlsFree(COMDLG32_TlsIndex);
 120             if(SHFOLDER_hInstance) FreeLibrary(SHFOLDER_hInstance);
 121             break;
 122         }
 123         return TRUE;
 124 }
 125 #undef GPA
 126
 127 /***********************************************************************
 128  *      COMDLG32_AllocMem                       (internal)
 129  * Get memory for internal datastructure plus stringspace etc.
 130  *      RETURNS
 131  *              Pointer to a heap block: Succes
 132  *              NULL: Failure
 133  */
 134 LPVOID COMDLG32_AllocMem(
 135         int size        /* [in] Block size to allocate */
 136 ) {
 137         LPVOID ptr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
 138         if(!ptr)
 139         {
 140                 COMDLG32_SetCommDlgExtendedError(CDERR_MEMALLOCFAILURE);
 141                 return NULL;
 142         }
 143         return ptr;
 144 }
 145
 146
 147 /***********************************************************************
 148  *      COMDLG32_SetCommDlgExtendedError        (internal)
 149  *
 150  * Used to set the thread's local error value if a comdlg32 function fails.
 151  */
 152 void COMDLG32_SetCommDlgExtendedError(DWORD err)
 153 {
 154         TRACE("(%08lx)\n", err);
 155         if (COMDLG32_TlsIndex == 0xffffffff)
 156           COMDLG32_TlsIndex = TlsAlloc();
 157         if (COMDLG32_TlsIndex != 0xffffffff)
 158           TlsSetValue(COMDLG32_TlsIndex, (void *)err);
 159         else
 160           FIXME("No Tls Space\n");
 161 }
 162
 163
 164 /***********************************************************************
 165  *      CommDlgExtendedError                    (COMMDLG.26)
 166  *      CommDlgExtendedError                    (COMDLG32.@)
 167  *
 168  * Get the thread's local error value if a comdlg32 function fails.
 169  *      RETURNS
 170  *              Current error value which might not be valid
 171  *              if a previous call succeeded.
 172  */
 173 DWORD WINAPI CommDlgExtendedError(void)
 174 {
 175         if (COMDLG32_TlsIndex != 0xffffffff)
 176           return (DWORD)TlsGetValue(COMDLG32_TlsIndex);
 177         else
 178           return 0; /* we never set an error, so there isn't one */
 179 }