On 15 Aug 2009, at 20:43, Rodrigo Morante wrote: > I recoded a bit, in particular I derived a class from > Fl_Double_Window.
Yes, although I'd really suggest that you override the draw() method and do all the smarts in there - basically have it do the "ordinary" stuff usually, and the "special" stuff to save the image only when a capture is required. I only suggest this because I have done this in the past and it worked well... > Now the area of the main window which is covered by > the Fl_File_Chooser when starting to save is dumped as a black region. That sounds very odd - this doesn't make much sense, really, as the region that the file-chooser covered must surely be marked as damaged, so it seems odd that it doesn't redraw...? > If the Fl_File_Chooser doesn't cover at all the window the dump is Ok. > Using fl_begin_offscreen()/fl_end_offscreen() does not alter the > result. OK, now that is very strange - I have had problems in the past with grabbing images from the screen being elided by other windows, but that's the whole point of the offscreen, of course, it should only ever have the "wanted" drawing in it... > I guess that a really quick-and-dirty solution would be to add > a time delay before reading. Maybe, but that should not be necessary. I think understanding why the offscreen doesn't do the Right Thing might be interesting too... _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
