void SetViewport(
	short left,
	short bottom,
	short width,
	short height
)

Sub SetViewport ( 
	left As Short,
	bottom As Short,
	width As Short,
	height As Short
)

void SetViewport(
	short left, 
	short bottom, 
	short width, 
	short height
)

abstract SetViewport : 
        left : int16 * 
        bottom : int16 * 
        width : int16 * 
        height : int16 -> unit