`TfpgGDIImage`
pt		DoFreeImage
pt		DoInitImage
pt		DoInitImageMask
		Create

`TfpgImageBase`
pt		DoFreeImage
pt		DoInitImage
pt		DoInitImageMask
		Create
		Destroy
		Invert
		FreeImage
		AllocateImage
		AllocateMask
		CreateMaskFromSample
		UpdateImage