gdk/gdk.go
func DisplayOpen(displayName string) (*Display, error) {
	cstr := C.CString(displayName)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gdk_display_open((*C.gchar)(cstr))
	if c == nil {
		return nil, nilPtrErr
	}

	return &Display{glib.Take(unsafe.Pointer(c))}, nil
}
func DisplayOpen(displayName string) (*Display, error) {
	cstr := C.CString(displayName)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gdk_display_open((*C.gchar)(cstr))
	if c == nil {
		return nil, nilPtrErr
	}

	return &Display{glib.Take(unsafe.Pointer(c))}, nil
}
// DisplayOpen() is a wrapper around gdk_display_open().