`TFPReaderGif`
pt		GetImages
pt		GetScreenHeight
pt		GetScreenWidth
pt		ReadPalette
pt		AnalyzeHeader
pt		InternalRead
pt		ReadFrames
pt		ReadFrame
pt		ReadLoopCount
pt		CompositeFrame
pt		ReadScanLine
pt		WriteScanLine
pt		DrawScanLine
pt		InternalCheck
pt		SkipBlock
pt		InternalSize
		Create
		Destroy
		Clear
		LoadFromStream
		ImageCount

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

`TFPCustomImageHandler`
pt		Progress
		Create