func EdgeFlagPointer(stride int32, pointer unsafe.Pointer) {
	syscall.Syscall(gpEdgeFlagPointer, 2, uintptr(stride), uintptr(pointer), 0)
}
func EdgeFlagPointer(stride int32, pointer unsafe.Pointer) {
	syscall.Syscall(gpEdgeFlagPointer, 2, uintptr(stride), uintptr(pointer), 0)
}
func EdgeFlagPointer ( stride int32 , pointer unsafe . Pointer ) { syscall . Syscall ( gpEdgeFlagPointer , 2 , uintptr ( stride ) , uintptr ( pointer ) , 0 ) }
// define an array of edge flags
define an array of edge flags