当用户在窗口外点击时如何隐藏Gtk弹出窗口

I have developed one popup window (Non decorated) using GTK+ and glade tool in C. It popup on its parent window when a button clicked. I want to destroy or hide this popup window when user clicks out side this window. User can click on parent window or any other window. I have tried to capture I have developed one popup window (Non decorate