Touch sensitivity for gtk application.

[guru prasad <gphere4u gmail com>]

Hi all,
I have a GTK application running on ARM platform having touchscreen.
I have to control the back light of the display means whenever display
is not touched for certain time I have turn off back light. And again
I touches back back light should become ON.
Can anyone suggest what can be done for this in GTK itself Is there
any API for doing this?

Thanks & Regards,
Guruprasad Bhat