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 HINSTANCE16     COMDLG32_hInstance16 = 0;
  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
  53 /***********************************************************************
  54  *      COMDLG32_DllEntryPoint                  (COMDLG32.init)
  55  *
  56  *    Initialization code for the COMDLG32 DLL
  57  *
  58  * RETURNS:
  59  *      FALSE if sibling could not be loaded or instantiated twice, TRUE
  60  *      otherwise.
  61  */
  62 static char * GPA_string = "Failed to get entry point %s for hinst = 0x%08x\n";
  63 #define GPA(dest, hinst, name) \
  64         if(!(dest = (void*)GetProcAddress(hinst,name)))\
  65         { \
  66           ERR(GPA_string, debugstr_a(name), hinst); \
  67           return FALSE; \
  68         }
  69
  70 BOOL WINAPI COMDLG32_DllEntryPoint(HINSTANCE hInstance, DWORD Reason, LPVOID Reserved)
  71 {
  72         TRACE("(%08x, %08lx, %p)\n", hInstance, Reason, Reserved);
  73
  74         switch(Reason)
  75         {
  76         case DLL_PROCESS_ATTACH:
  77                 COMDLG32_hInstance = hInstance;
  78                 DisableThreadLibraryCalls(hInstance);
  79
  80                 if(!COMDLG32_hInstance16)
  81                 {
  82                         if(!(COMDLG32_hInstance16 = LoadLibrary16("commdlg.dll")))
  83                         {
  84                                 ERR("Could not load sibling commdlg.dll\n");
  85                                 return FALSE;
  86                         }
  87                 }
  88
  89                 COMDLG32_TlsIndex = 0xffffffff;
  90
  91                 SHELL32_hInstance = GetModuleHandleA("SHELL32.DLL");
  92
  93                 if (!SHELL32_hInstance)
  94                 {
  95                         ERR("loading of shell32 failed\n");
  96                         return FALSE;
  97                 }
  98
  99                 /* ITEMIDLIST */
 100                 GPA(COMDLG32_PIDL_ILIsEqual, SHELL32_hInstance, (LPCSTR)21L);
 101                 GPA(COMDLG32_PIDL_ILCombine, SHELL32_hInstance, (LPCSTR)25L);
 102                 GPA(COMDLG32_PIDL_ILGetNext, SHELL32_hInstance, (LPCSTR)153L);
 103                 GPA(COMDLG32_PIDL_ILClone, SHELL32_hInstance, (LPCSTR)18L);
 104                 GPA(COMDLG32_PIDL_ILRemoveLastID, SHELL32_hInstance, (LPCSTR)17L);
 105
 106                 /* SHELL */
 107
 108                 GPA(COMDLG32_SHAlloc, SHELL32_hInstance, (LPCSTR)196L);
 109                 GPA(COMDLG32_SHFree, SHELL32_hInstance, (LPCSTR)195L);
 110                 /* for the first versions of shell32 SHGetFolderPathA is in SHFOLDER.DLL */
 111                 COMDLG32_SHGetFolderPathA = (void*)GetProcAddress(SHELL32_hInstance,"SHGetFolderPathA");
 112                 if (!COMDLG32_SHGetFolderPathA)
 113                 {
 114                   SHFOLDER_hInstance = LoadLibraryA("SHFOLDER.DLL");
 115                   GPA(COMDLG32_SHGetFolderPathA, SHFOLDER_hInstance,"SHGetFolderPathA");
 116                 }
 117
 118                 break;
 119
 120         case DLL_PROCESS_DETACH:
 121             if (COMDLG32_TlsIndex != 0xffffffff) TlsFree(COMDLG32_TlsIndex);
 122             COMDLG32_TlsIndex = 0xffffffff;
 123             COMDLG32_hInstance = 0;
 124             if(COMDLG32_hInstance16) FreeLibrary16(COMDLG32_hInstance16);
 125             if(SHFOLDER_hInstance) FreeLibrary(SHFOLDER_hInstance);
 126             break;
 127         }
 128         return TRUE;
 129 }
 130 #undef GPA
 131
 132 /***********************************************************************
 133  *      COMDLG32_AllocMem                       (internal)
 134  * Get memory for internal datastructure plus stringspace etc.
 135  *      RETURNS
 136  *              Pointer to a heap block: Succes
 137  *              NULL: Failure
 138  */
 139 LPVOID COMDLG32_AllocMem(
 140         int size        /* [in] Block size to allocate */
 141 ) {
 142         LPVOID ptr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
 143         if(!ptr)
 144         {
 145                 COMDLG32_SetCommDlgExtendedError(CDERR_MEMALLOCFAILURE);
 146                 return NULL;
 147         }
 148         return ptr;
 149 }
 150
 151
 152 /***********************************************************************
 153  *      COMDLG32_SetCommDlgExtendedError        (internal)
 154  *
 155  * Used to set the thread's local error value if a comdlg32 function fails.
 156  */
 157 void COMDLG32_SetCommDlgExtendedError(DWORD err)
 158 {
 159         TRACE("(%08lx)\n", err);
 160         if (COMDLG32_TlsIndex == 0xffffffff)
 161           COMDLG32_TlsIndex = TlsAlloc();
 162         if (COMDLG32_TlsIndex != 0xffffffff)
 163           TlsSetValue(COMDLG32_TlsIndex, (void *)err);
 164         else
 165           FIXME("No Tls Space\n");
 166 }
 167
 168
 169 /***********************************************************************
 170  *      CommDlgExtendedError                    (COMMDLG.26)
 171  *      CommDlgExtendedError                    (COMDLG32.@)
 172  *
 173  * Get the thread's local error value if a comdlg32 function fails.
 174  *      RETURNS
 175  *              Current error value which might not be valid
 176  *              if a previous call succeeded.
 177  */
 178 DWORD WINAPI CommDlgExtendedError(void)
 179 {
 180         if (COMDLG32_TlsIndex != 0xffffffff)
 181           return (DWORD)TlsGetValue(COMDLG32_TlsIndex);
 182         else
 183           return 0; /* we never set an error, so there isn't one */
 184 }