How to identify the idle state of the GTK+ application?

[sadhees kumar <sadheeskumar gmail com>]

Friends,

       In my GTK application, If  no action(event) is taken place in
the screen, I need to turn OFF the backlight of an TFT monitor. If any
key pressed, or mouse movement occured, I need to turn ON the
backlight.

I have the API for toggling the backlight. My problem is , how to
identify the idle state of the screen?

Can you help me.

Thanks in advance..


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Regards,

K.Sadheeskumar.