func IndexPointer(xtype uint32, stride int32, pointer unsafe.Pointer) {
	C.glowIndexPointer(gpIndexPointer, (C.GLenum)(xtype), (C.GLsizei)(stride), pointer)
}
func IndexPointer(xtype uint32, stride int32, pointer unsafe.Pointer) {
	C.glowIndexPointer(gpIndexPointer, (C.GLenum)(xtype), (C.GLsizei)(stride), pointer)
}
func IndexPointer ( xtype uint32 , stride int32 , pointer unsafe . Pointer ) { C . glowIndexPointer ( gpIndexPointer , ( C . GLenum ) ( xtype ) , ( C . GLsizei ) ( stride ) , pointer ) }
// define an array of color indexes
define an array of color indexes