virtual L_INT LFile::BrowseDirCallBack(pLBitmap, pszFilename, pFileInfo, nStatus, nPercent)
Handles the thumbnails generated by calling the LFile::BrowseDir function.
The pointer to the LBitmapBase object that references the thumbnail generated by LFile::BrowseDir. You can copy this bitmap, save it to file, insert it into a LEADTOOLS ImageList Control, or otherwise process it as needed in your application.
Character string containing the filename from which this thumbnail was generated.
Pointer to a FILEINFO structure containing information about pszFilename.
Status code. If an error occurred during thumbnail generation, this will be < SUCCESS. Possible values are:
|BROWSE_LOADING|| Indicates image is being loaded, see nPercent.|
|BROWSE_SKIPPED|| Indicates image was skipped because it was larger than the specified range in LFile::BrowseDir.|
|BROWSE_PRELOAD|| Indicates that LEADTOOLS has found a file and is about to determine the file format. It will then attempt to create a thumbnail for it. If the user wishes to avoid the internal file information processing, return ERROR_FILE_FORMAT. This will cause LEADTOOLS to skip the file.|
Represents the percentage completion of a file load when nErrorCode is equal to BROWSE_LOADING.
|> 0||The function was successful, and returns the handle to the ImageList Control window.|
|< 0||An error occurred. Return Codes|
You must return SUCCESS to continue browsing for supported image files. The value you return from this callback will also be returned from LFile::BrowseDir.
For an example, refer to LFile::BrowseDir.
Medical Web Viewer .NET
.NET, Java, Android, and iOS/macOS Assemblies
C API/C++ Class Libraries