Help me in the relationship between Xlib's windowID and GTK widget

[sarge Chris <sarge_gnome yahoo ca>]

Hi experts,

Here I met a problem:

Suppose there are two GTK apps A and B,

A can get B's window ID by XQueryTree, but how can A get the GtkWidget of B by its Xlib's WindowID?

Is it possible? If so, pls give me a hand!

Thanks a lot!

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