`TFCustomCanvas`
pt		DoExcludeClipRect
pt		DoIntersectClipRect
pt		DoUnionClipRect
pt		DoGetClipRect
pt		DoDrawArc
pt		DoDrawCircle
pt		DoDrawLine
pt		DoDrawRect
pt		DoDrawPoint
pt		DoFillRect
pt		DoFillTriangle
pt		DoTextOut
pt		DoCopyRect
pt		DoMaskedCopyRect
pt		DoDrawImageRect
		Create
		Transform
		ReverseTransform
		AppendTranslation
		SaveState
		RestoreState
		EmptyClipRect
		SetColor_
		SetColor
		SetFont
		SetLineStyle
		ExcludeClipRect
		IntersectClipRect
		UnionClipRect
		GetClipRect
		MapColor
		GetColor
		DrawArc
		DrawCircle
		DrawLine
		DrawPolyLine
		DrawRect
		DrawPoint
		FillRect
		FillTriangle
		FontCellHeight
		TextExtent
		TextWidth
		TextOut
		Copy
		CopyRect
		MaskedCopy
		MaskedCopyRect
		DrawImage
		DrawImageRect