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In the general case, an application does not have the ability to do these things, because these things are controlled by the window manager. It may be possible in certain cases, i.e., with window managers that provide a mechanism for it, but if so it wouldn't be the least bit portable: as soon as somebody runs the app under a different window manager, it won't work. Probably the most common way to accomplish these things is to eschew the standard window widget altogether and draw your own shape; media players such as yamp and xmms tend to do this. However, this too is somewhat unportable, and I don't think Tk provides the ability to do it. (Tk is, after all, a widget set, and applications that do this don't use a standard widget set; they have to draw just about everything themselves, I think; at least, that's the approach most of them seem to take.) And like I said, it's unportable; xmms had to have a new frontend created to run under Ion. (Fortunately, xmms has the functional backend cleanly separated from the graphical frontend so that this was easy to do; it also has a frontend for Emacs and a text-based one for consoles and terminals.)

In reply to Re: Remove the Maximise and minimize button in TK by jonadab
in thread Remove the Maximise and minimize button in TK by gopalr

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