Do you have special code to process the top left button? I think that the two buttons above flip bar and NEWS, BOOKS, DOCS, NOTES are proprietary to contentlister. I haven't found a way to catch them as GdkEventKey. If I am right, then your app won't respond to those key press unless special connection to contentlister is established.
My above words might not be relevant to your problem. Ideally, when the top-left button is pressed, ipdf should exit. Then, one question: which process will be displayed on screen, your application "A" or contentlister?
Last edited by ericshliao; 12-19-2008 at 12:16 PM.