func DrawPixels(width int32, height int32, format uint32, xtype uint32, pixels unsafe.Pointer) {
	C.glowDrawPixels(gpDrawPixels, (C.GLsizei)(width), (C.GLsizei)(height), (C.GLenum)(format), (C.GLenum)(xtype), pixels)
}
func DrawPixels(width int32, height int32, format uint32, xtype uint32, pixels unsafe.Pointer) {
	C.glowDrawPixels(gpDrawPixels, (C.GLsizei)(width), (C.GLsizei)(height), (C.GLenum)(format), (C.GLenum)(xtype), pixels)
}
// write a block of pixels to the frame buffer