Dear all, I have a class that inherits from DrawingArea of which the visible contents should change a bit after a certain signal occurs. I do this by connecting this signal to a method that modifies the data representation of the drawingarea and thereafter calls on_expose_event(NULL) to redraw the drawing area. This on_expose_event is my own method that overrides the virtual function on_expose_event of the class DrawingArea. This seems to work just fine in principle, but I do notice that sometimes (not always) the redrawing causes a clearly visible white flash of the DrawingArea. It also happens sometimes that the white flash only occurs in the upper or lower part of the DrawingArea. A bit of experimentation with the code leads to the conclusion that the drawing is at first done invisibly to the user and that, after the drawing is finished, the visible DrawingArea is updated to show the new picture. My question is if there is anything I can do to avoid seeing the white flash, which, I think, is very ugly. Is this a bug in libgtk?
I use gtkmm version 2.4 that came with my ubuntu installation and version 7.2.0 of the Xorg X-server. All the best, Chris _______________________________________________ gtkmm-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/gtkmm-list
