This is class TImageFileFormat.

public TImageFileFormat = class(TObject);

Imaging (at line 346)

TObject
TImageFileFormat
TBitmapFileFormat, TDDSFileFormat, TElderFileFormat, TGIFFileFormat, TJpeg2000FileFormat, TJpegFileFormat, TJpegFileFormatIJL, TNetworkGraphicsFileFormat, TPCXFileFormat, TPortableMapFileFormat, TPSDFileFormat, TTargaFileFormat, TTiffFileFormat, TXPMFileFormat