Purpose: to collect tips, suggestions, questions, and examples where
developers have written tcl/tk code that ''wraps'' around an
existing GUI window.

In particular, I'm interested in hearing people talk about 
doing this under the X Window System.

Has anyone an example, for instance, of embedding perhaps an xterm
inside a tcl/tk frame?

Why?  Well, perhaps, for example, to have an application to which one could
easily add buttons for generating key sequences or command strings, etc.

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[Category GUI]