pt 

CompressInfo (TFPWriterJPEG)

CompressionQuality (TFPWriterJPEG)

GrayScale (TFPWriterJPEG)

ProgressiveEncoding (TFPWriterJPEG)

pt 

ro 

TheImage (TFPCustomImageHandler)

pt 

ro 

TheStream (TFPCustomImageHandler)