`TFPWriterCUR`
pt		IconType

`TFPWriterICO`
pt		IconType
pt		InternalWrite
pt		InternalBeginFrames
pt		InternalWriteFrame
pt		InternalEndFrames
		FrameKinds
		Clear
		AddImage
		SaveToStream

`TFPCustomImageWriter`
pt		InternalWrite
pt		InternalBeginFrames
pt		InternalWriteFrame
pt		InternalEndFrames
		ImageWrite
		FrameKinds
		BeginFrames
		WriteNextFrame
		EndFrames

`TFPCustomImageHandler`
pt		Progress
		Create