dlls/comdlg32/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include <stdarg.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wingdi.h"
  27 #include "winuser.h"
  28 #include "commdlg.h"
  29 #include "cderr.h"
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(commdlg);
  33
  34 #include "cdlg.h"
  35
  36
  37 HINSTANCE       COMDLG32_hInstance = 0;
  38
  39 static DWORD COMDLG32_TlsIndex = TLS_OUT_OF_INDEXES;
  40
  41 static HINSTANCE        SHELL32_hInstance;
  42 static HINSTANCE        SHFOLDER_hInstance;
  43
  44 /* ITEMIDLIST */
  45 LPITEMIDLIST (WINAPI *COMDLG32_PIDL_ILClone) (LPCITEMIDLIST);
  46 LPITEMIDLIST (WINAPI *COMDLG32_PIDL_ILCombine)(LPCITEMIDLIST,LPCITEMIDLIST);
  47 LPITEMIDLIST (WINAPI *COMDLG32_PIDL_ILGetNext)(LPITEMIDLIST);
  48 BOOL (WINAPI *COMDLG32_PIDL_ILRemoveLastID)(LPCITEMIDLIST);
  49 BOOL (WINAPI *COMDLG32_PIDL_ILIsEqual)(LPCITEMIDLIST, LPCITEMIDLIST);
  50 UINT (WINAPI *COMDLG32_PIDL_ILGetSize)(LPCITEMIDLIST);
  51
  52 /* SHELL */
  53 LPVOID (WINAPI *COMDLG32_SHAlloc)(DWORD);
  54 DWORD (WINAPI *COMDLG32_SHFree)(LPVOID);
  55 BOOL (WINAPI *COMDLG32_SHGetFolderPathA)(HWND,int,HANDLE,DWORD,LPSTR);
  56 BOOL (WINAPI *COMDLG32_SHGetFolderPathW)(HWND,int,HANDLE,DWORD,LPWSTR);
  57
  58 /***********************************************************************
  59  *      DllMain  (COMDLG32.init)
  60  *
  61  *    Initialization code for the COMDLG32 DLL
  62  *
  63  * RETURNS:
  64  *      FALSE if sibling could not be loaded or instantiated twice, TRUE
  65  *      otherwise.
  66  */
  67 static const char GPA_string[] = "Failed to get entry point %s for hinst = %p\n";
  68 #define GPA(dest, hinst, name) \
  69         if(!(dest = (void*)GetProcAddress(hinst,name)))\
  70         { \
  71           ERR(GPA_string, debugstr_a(name), hinst); \
  72           return FALSE; \
  73         }
  74
  75 BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD Reason, LPVOID Reserved)
  76 {
  77         TRACE("(%p, %d, %p)\n", hInstance, Reason, Reserved);
  78
  79         switch(Reason)
  80         {
  81         case DLL_PROCESS_ATTACH:
  82                 COMDLG32_hInstance = hInstance;
  83                 DisableThreadLibraryCalls(hInstance);
  84
  85                 SHELL32_hInstance = GetModuleHandleA("SHELL32.DLL");
  86
  87                 if (!SHELL32_hInstance)
  88                 {
  89                         ERR("loading of shell32 failed\n");
  90                         return FALSE;
  91                 }
  92
  93                 /* ITEMIDLIST */
  94                 GPA(COMDLG32_PIDL_ILIsEqual, SHELL32_hInstance, (LPCSTR)21L);
  95                 GPA(COMDLG32_PIDL_ILCombine, SHELL32_hInstance, (LPCSTR)25L);
  96                 GPA(COMDLG32_PIDL_ILGetNext, SHELL32_hInstance, (LPCSTR)153L);
  97                 GPA(COMDLG32_PIDL_ILClone, SHELL32_hInstance, (LPCSTR)18L);
  98                 GPA(COMDLG32_PIDL_ILRemoveLastID, SHELL32_hInstance, (LPCSTR)17L);
  99                 GPA(COMDLG32_PIDL_ILGetSize, SHELL32_hInstance, (LPCSTR)152L);
 100
 101                 /* SHELL */
 102
 103                 GPA(COMDLG32_SHAlloc, SHELL32_hInstance, (LPCSTR)196L);
 104                 GPA(COMDLG32_SHFree, SHELL32_hInstance, (LPCSTR)195L);
 105                 /* for the first versions of shell32 SHGetFolderPathA is in SHFOLDER.DLL */
 106                 COMDLG32_SHGetFolderPathA = (void*)GetProcAddress(SHELL32_hInstance,"SHGetFolderPathA");
 107                 if (!COMDLG32_SHGetFolderPathA)
 108                 {
 109                   SHFOLDER_hInstance = LoadLibraryA("SHFOLDER.DLL");
 110                   GPA(COMDLG32_SHGetFolderPathA, SHFOLDER_hInstance,"SHGetFolderPathA");
 111                 }
 112
 113                 /* for the first versions of shell32 SHGetFolderPathW is in SHFOLDER.DLL */
 114                 COMDLG32_SHGetFolderPathW = (void*)GetProcAddress(SHELL32_hInstance,"SHGetFolderPathW");
 115                 if (!COMDLG32_SHGetFolderPathW)
 116                 {
 117                   SHFOLDER_hInstance = LoadLibraryA("SHFOLDER.DLL");
 118                   GPA(COMDLG32_SHGetFolderPathW, SHFOLDER_hInstance,"SHGetFolderPathW");
 119                 }
 120
 121                 break;
 122
 123         case DLL_PROCESS_DETACH:
 124             if (COMDLG32_TlsIndex != TLS_OUT_OF_INDEXES) TlsFree(COMDLG32_TlsIndex);
 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  *              Success: Pointer to a heap block
 137  *              Failure: null
 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("(%08x)\n", err);
 160         if (COMDLG32_TlsIndex == TLS_OUT_OF_INDEXES)
 161           COMDLG32_TlsIndex = TlsAlloc();
 162         if (COMDLG32_TlsIndex != TLS_OUT_OF_INDEXES)
 163           TlsSetValue(COMDLG32_TlsIndex, (LPVOID)(DWORD_PTR)err);
 164         else
 165           FIXME("No Tls Space\n");
 166 }
 167
 168
 169 /***********************************************************************
 170  *      CommDlgExtendedError                    (COMDLG32.@)
 171  *      CommDlgExtendedError                    (COMMDLG.26)
 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 != TLS_OUT_OF_INDEXES)
 181           return (DWORD_PTR)TlsGetValue(COMDLG32_TlsIndex);
 182         else
 183           return 0; /* we never set an error, so there isn't one */
 184 }