repaint GDK DRAWABLE after minimizing event

[dexter <iou in 21 gmail com>]

Hello everybody ! I've a problem on repainting the GtkWindow after it
re-exposes  from a minimizing (iconify) event.
I want it to retrieve all the drawing that was there before the minimizing
event , but i couldn't.
Here's the code :  http://pastebin.com/n8NukfW6
Thanks in advance.

                                  dexter