`TFPReaderTiff`
pt		InternalRead
pt		InternalCheck
pt		DoCreateImage
		Create
		Destroy
		Clear
		LoadFromStream
		FirstImg
		GetBiggestImage
		ImageCount
		LoadHeaderFromStream
		LoadIFDsFromStream
		LoadImageFromStream
		ReleaseStream

`TFPCustomImageReader`
pt		InternalRead
pt		InternalCheck
pt		InternalSize
		Create
		ImageRead
		CheckContents
		ImageSize

`TFPCustomImageHandler`
pt		Progress
		Create