public static extern void SetShutdownRequestCallback(win_sparkle_shutdown_request_callback_t callback);
public static extern long win_sparkle_set_shutdown_request_callback(win_sparkle_shutdown_request_callback_t callback);
public static extern void SetShutdownRequestCallback(win_sparkle_shutdown_request_callback_t callback);
public static extern long win_sparkle_set_shutdown_request_callback(win_sparkle_shutdown_request_callback_t callback);