How to update GUI display using glade

[Grace Yeung <yeung mrcmry com>]

I am developing a GUI using glade (GTK+/Gnome/C).  When I click a button
(the Run button in my application) and the connecting routine
(on_run_button_clicked) is run, I cannot get the GUI displays (such as
text boxes, status bar messages, gnomeLess widget content etc.)  to
update their current content until the routine returns.  Is there a way
to force the displays to be updated routinely as progress is made before
the routine returns?

Grace