On Thursday 22 April 2004 6:48 pm, Sven Neumann wrote: > > That's not a backing pixmap, it's a background pixmap. So instead of > erasing your window background to the background color, the background > pixmap is being used. OK. I'm doing some reading-up on this offline now and going throught the Gtk/Gdk examples. OK. A further question :) I understand how the drawing is done to a backing pixmap and then copied to the screen during an expose event. However, if I need to update graphics on the screen asynchronously (i.e. not just when an expose occurs due to a resize or whatever) I guess I need to (a) update the backing pixmap, then (b) call expose manually. I notice the scribble example uses 'gtk_widget_queue_draw_area' to basically call expose to redraw the bit that's changed. Is this the approved (and optimal - in a speed sense) way to do it or just a simplification for the example? Regards -- David J. Singer doc@xxxxxxxxxxxxxxxxxx "Time flies like an arrow, fruit flies like a banana" _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
