On Fri, 26 Nov 2004 22:21:02 -0200, Joao Victor said: > Hmmm that's because you didn't understand very well my problem here... > what i'm trying to do is similar to this: > > http://www.quinn.echidna.id.au/Quinn/WWW/HISubtleties/AnnotatedCoachMark.gif > > See that red circle painted over the widgets? That's that. Anybody > knows how to do it? OK... Now I *fully* understand what you're trying to do, and it *is* a reasonable thing to try to do when that's the effect you want. Unfortunately, there's probably no really good way to attack this easily, at least with the X graphics backend, as it requires a level of cooperation and/or transparency support that X doesn't usually provide. One trick you can try is to allocate a *small* window, *without WM decorations*, and then walk through the window list and gather up the bits for each window, (look at the source for 'xv' or other programs that can take a snapshot of other windows for details) and composite them yourself. Then having composited the image together, throw it up on the very top of the stacking order. I suspect that a number of these steps will require at least some low-level X hacking, as I don't think gdk/gtk expose the primitives you need.... You *may* be able to do better if the X server supports some of the newer rendering and transparency extensions, and if you're using some other back-end for GTK other than X (like the framebuffer driver), you're on your own - I'm just an X guy.. ;)
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