Closing the window if it is idle for sometime

["SaiKamesh Rathinasabapathy" <rsaikamesh gmail com>]

Hi,

I have created a small keypad to enter pin number for logging into my application. When I click login button that window is popped up. If the user does not press any button in the keypad then that keypad ( which is a Gtk::Window(popup) ) should be closed in 60 seconds. Please give me some ideas to do this.

Thanks!.