Refreshing GUI to show changes?

[tsangv gdls com]

Please excuse me - I am a software / Gtk newbie....

I know this is probably a really simple question, but I seem to have 
difficulties to get the contents of a label to change. The label initially 
is set to "Running filesystem check" and then I call e2fsck from my 
application. Once it is finished executing I want the label to now display 
something like "filesystem check complete" but when I try 
gtk_label_set_text(...) with the new text the GUI doesn't update. I'm 
guessing it is something to do with no event being generated or something 
like that. How do I get the GUI to refresh and show the new label 
contents?

Thanks,

VT


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