L_BrowseDir

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
L_INT EXT_CALLBACK BrowseDirCallback(pBITMAPHANDLE pBitmap, 
L_TCHAR* pszFilename, 
pFILEINFO pFileInfo, 
L_INT nStatusCode, 
L_INT nPercent, 
L_VOID* pUserData) 
{ 
   L_TCHAR buf[200]; 
   UNREFERENCED_PARAMETER(pUserData); 
   UNREFERENCED_PARAMETER(nPercent); 
   UNREFERENCED_PARAMETER(pFileInfo); 
   UNREFERENCED_PARAMETER(pBitmap); 
   switch(nStatusCode) 
   { 
      case BROWSE_PRELOAD:/* notify image is about to be loaded */ 
      return SUCCESS; 
      case BROWSE_LOADING:/* in the process of loading an image */ 
      return SUCCESS; 
      case SUCCESS:/* successful thumbnail generation */ 
      /* Do something with the thumbnail, i.e. insert into ImageList Control */ 
      /* ... */ 
      break; 
      case BROWSE_SKIPPED:/* skipped a large file */ 
      /* report error to user */ 
      wsprintf(buf, TEXT("Skipped File: %s !"), pszFilename); 
      MessageBox(NULL, buf, TEXT("Skipped"), MB_OK); 
      return SUCCESS; 
default: 
      if(nStatusCode < SUCCESS) 
      { 
         /* report error to user */ 
         wsprintf(buf, TEXT("Error: %d - Generating Thumbnail!\n%s\nPress OK to Continue!"), nStatusCode, pszFilename); 
         if(MessageBox(NULL, buf, TEXT("Error"), MB_OKCANCEL|MB_ICONERROR) == IDCANCEL) 
            return(ERROR_USER_ABORT); 
      } 
   } 
   return SUCCESS; 
} 
L_INT BrowseDirExample(L_VOID) 
{ 
   L_INT nRet; 
   THUMBOPTIONS Opt; 
   memset(&Opt, 0, sizeof(THUMBOPTIONS)); 
   Opt.uStructSize = sizeof(THUMBOPTIONS); 
   Opt.nWidth = 115; /* thumbnail width                          */ 
   Opt.nHeight = 115; /* thumbnail height                          */ 
   Opt.nBits = 24; /* 24-bit                                   */ 
   Opt.uCRFlags = 0; /* ignored, b/c we specified 24-bit         */ 
   Opt.bMaintainAspect = TRUE; /* maintain aspect when creating thumbnails */ 
   Opt.bForceSize = FALSE; /* don't force size                         */ 
   Opt.crBackColor = RGB(0,0,0); /* background color is ignored              */ 
   Opt.bLoadStamp = TRUE; /* try to load stamp if present in file     */ 
   Opt.bResample = TRUE; /* resample, for better quality thumbnails  */ 
   nRet = L_BrowseDir( MAKE_IMAGE_PATH(L_TEXT("")), 
   TEXT("*.jpg"), 
   &Opt, 
   FALSE, /* don't stop on error                      */ 
   FALSE, /* do not recurse subdirectories            */ 
   FALSE, /* do not expand multi-page files            */ 
   0,     /* no limit on file size                    */ 
   4000*1024,/* set limit on image size to 4MB        */ 
   BrowseDirCallback,/* callback  */ 
   NULL );/* no user data                             */ 
   return nRet; 
}