This option can be used to override image data format during image loading.

ImagingLoadOverrideFormat = 129;

ImagingTypes (at line 170)

If set to format different from ifUnknown all loaded images are automaticaly converted to this format. Useful when you have many files in various formats but you want them all in one format for further proccessing. Allowed values are in range and default value is ifUnknown.