func ColorPointer(size int32, xtype uint32, stride int32, pointer unsafe.Pointer) {
	C.glowColorPointer(gpColorPointer, (C.GLint)(size), (C.GLenum)(xtype), (C.GLsizei)(stride), pointer)
}
func ColorPointer(size int32, xtype uint32, stride int32, pointer unsafe.Pointer) {
	C.glowColorPointer(gpColorPointer, (C.GLint)(size), (C.GLenum)(xtype), (C.GLsizei)(stride), pointer)
}
// define an array of colors