reactos/win32ss/user/user32/misc/resources.c

   1 #include <user32.h>
   2
   3 #include <wine/debug.h>
   4 WINE_DEFAULT_DEBUG_CHANNEL(resource);
   5
   6 #ifndef _CFGMGR32_H_
   7 #define CR_SUCCESS                        0x00000000
   8 #define CR_OUT_OF_MEMORY                  0x00000002
   9 #define CR_INVALID_POINTER                0x00000003
  10 #define CR_INVALID_DATA                   0x0000001F
  11 #endif
  12
  13 typedef DWORD (WINAPI *CMP_REGNOTIFY) (HANDLE, LPVOID, DWORD, PULONG);
  14 typedef DWORD (WINAPI *CMP_UNREGNOTIFY) (ULONG );
  15
  16 /* FIXME: Currently IsBadWritePtr is implemented using VirtualQuery which
  17           does not seem to work properly for stack address space. */
  18 /* kill `left-hand operand of comma expression has no effect' warning */
  19 #define IsBadWritePtr(lp, n) ((DWORD)lp==n?0:0)
  20
  21
  22 static HINSTANCE hSetupApi = NULL;
  23
  24 /**********************************************************************
  25  *      LoadStringW             (USER32.@)
  26  *      Synced with Wine Staging 1.7.55
  27  */
  28 INT WINAPI LoadStringW( HINSTANCE instance, UINT resource_id,
  29                             LPWSTR buffer, INT buflen )
  30 {
  31     HGLOBAL hmem;
  32     HRSRC hrsrc;
  33     WCHAR *p;
  34     int string_num;
  35     int i;
  36
  37     TRACE("instance = %p, id = %04x, buffer = %p, length = %d\n",
  38           instance, resource_id, buffer, buflen);
  39
  40     if(buffer == NULL)
  41         return 0;
  42
  43     /* Use loword (incremented by 1) as resourceid */
  44     hrsrc = FindResourceW( instance, MAKEINTRESOURCEW((LOWORD(resource_id) >> 4) + 1),
  45                            (LPWSTR)RT_STRING );
  46     if (!hrsrc) return 0;
  47     hmem = LoadResource( instance, hrsrc );
  48     if (!hmem) return 0;
  49
  50     p = LockResource(hmem);
  51     string_num = resource_id & 0x000f;
  52     for (i = 0; i < string_num; i++)
  53         p += *p + 1;
  54
  55     TRACE("strlen = %d\n", (int)*p );
  56
  57     /*if buflen == 0, then return a read-only pointer to the resource itself in buffer
  58     it is assumed that buffer is actually a (LPWSTR *) */
  59     if(buflen == 0)
  60     {
  61         *((LPWSTR *)buffer) = p + 1;
  62         return *p;
  63     }
  64
  65     i = min(buflen - 1, *p);
  66     if (i > 0) {
  67         memcpy(buffer, p + 1, i * sizeof (WCHAR));
  68         buffer[i] = 0;
  69     } else {
  70         if (buflen > 1) {
  71             buffer[0] = 0;
  72             return 0;
  73         }
  74     }
  75
  76     TRACE("%s loaded !\n", debugstr_w(buffer));
  77     return i;
  78 }
  79
  80 /**********************************************************************
  81  *      LoadStringA     (USER32.@)
  82  *      Synced with Wine Staging 1.7.55
  83  */
  84 INT WINAPI LoadStringA( HINSTANCE instance, UINT resource_id, LPSTR buffer, INT buflen )
  85 {
  86     HGLOBAL hmem;
  87     HRSRC hrsrc;
  88     DWORD retval = 0;
  89
  90     TRACE("instance = %p, id = %04x, buffer = %p, length = %d\n",
  91           instance, resource_id, buffer, buflen);
  92
  93     if (!buflen) return -1;
  94
  95     /* Use loword (incremented by 1) as resourceid */
  96     if ((hrsrc = FindResourceW( instance, MAKEINTRESOURCEW((LOWORD(resource_id) >> 4) + 1),
  97                                 (LPWSTR)RT_STRING )) &&
  98         (hmem = LoadResource( instance, hrsrc )))
  99     {
 100         const WCHAR *p = LockResource(hmem);
 101         unsigned int id = resource_id & 0x000f;
 102
 103         while (id--) p += *p + 1;
 104
 105         if (buflen != 1)
 106             RtlUnicodeToMultiByteN( buffer, buflen - 1, &retval, (PWSTR)(p + 1), *p * sizeof(WCHAR) );
 107     }
 108     buffer[retval] = 0;
 109     TRACE("returning %s\n", debugstr_a(buffer));
 110     return retval;
 111 }
 112
 113 /*
 114  * @implemented
 115  */
 116 HDEVNOTIFY
 117 WINAPI
 118 RegisterDeviceNotificationW(HANDLE hRecipient,
 119                             LPVOID NotificationFilter,
 120                             DWORD Flags)
 121 {
 122     DWORD ConfigRet = 0;
 123     CMP_REGNOTIFY RegNotify = NULL;
 124     HDEVNOTIFY hDevNotify = NULL;
 125
 126     if (hSetupApi == NULL) hSetupApi = LoadLibraryA("SETUPAPI.DLL");
 127     if (hSetupApi == NULL) return NULL;
 128
 129     RegNotify = (CMP_REGNOTIFY) GetProcAddress(hSetupApi, "CMP_RegisterNotification");
 130     if (RegNotify == NULL)
 131     {
 132         FreeLibrary(hSetupApi);
 133         hSetupApi = NULL;
 134         return NULL;
 135     }
 136
 137     ConfigRet  = RegNotify(hRecipient, NotificationFilter, Flags, (PULONG) &hDevNotify);
 138     if (ConfigRet != CR_SUCCESS)
 139     {
 140         switch (ConfigRet)
 141         {
 142             case CR_OUT_OF_MEMORY:
 143                 SetLastError (ERROR_NOT_ENOUGH_MEMORY);
 144                 break;
 145
 146             case CR_INVALID_POINTER:
 147                 SetLastError (ERROR_INVALID_PARAMETER);
 148                 break;
 149
 150             case CR_INVALID_DATA:
 151                 SetLastError (ERROR_INVALID_DATA);
 152                 break;
 153
 154             default:
 155                 SetLastError (ERROR_SERVICE_SPECIFIC_ERROR);
 156                 break;
 157         }
 158     }
 159
 160     return hDevNotify;
 161 }
 162
 163
 164 /*
 165  * @implemented
 166  */
 167 BOOL
 168 WINAPI
 169 UnregisterDeviceNotification(HDEVNOTIFY Handle)
 170 {
 171     DWORD ConfigRet = 0;
 172     CMP_UNREGNOTIFY UnRegNotify = NULL;
 173
 174     if (hSetupApi == NULL) hSetupApi = LoadLibraryA("SETUPAPI.DLL");
 175     if (hSetupApi == NULL) return FALSE;
 176
 177     UnRegNotify = (CMP_UNREGNOTIFY) GetProcAddress(hSetupApi, "CMP_UnregisterNotification");
 178     if (UnRegNotify == NULL)
 179     {
 180         FreeLibrary(hSetupApi);
 181         hSetupApi = NULL;
 182         return FALSE;
 183     }
 184
 185     ConfigRet  = UnRegNotify((ULONG_PTR)Handle );
 186     if (ConfigRet != CR_SUCCESS)
 187     {
 188         switch (ConfigRet)
 189         {
 190             case CR_INVALID_POINTER:
 191                 SetLastError (ERROR_INVALID_PARAMETER);
 192                 break;
 193
 194             case CR_INVALID_DATA:
 195                 SetLastError (ERROR_INVALID_DATA);
 196                 break;
 197
 198             default:
 199                 SetLastError (ERROR_SERVICE_SPECIFIC_ERROR);
 200                 break;
 201         }
 202         return FALSE;
 203     }
 204
 205     return TRUE;
 206 }
 207
 208 /* EOF */