Good time of day. I'm student and I need to write application to visualisate quantum mechanical process. So I'd like to write application where I could view some movie in dynamics. I tried to write it using GTK+-2.4.1 library, and now I am a bit frustrated. What I've done. I've took a scribble-simple program from gtk+ 2.0 tutorial as a base, removed code that handles mouse moving and drawing and then tried to add some code that allows me to move for example rectangle. As the result for now I can't see any moving. May be I'm very wrong, but my idea is the following. I take a pixmap and then I'll draw next frame on it and make it visible. The sequence of this frames form my movie. Next 3 functions illustrate what I'm actually doing: gdk_draw_rectangle (pixmap, widget->style->white_gc,TRUE, update_rect.x_old, update_rect.y_old, update_rect.width_old, update_rect.height_old); gdk_draw_rectangle (pixmap, widget->style->black_gc,TRUE, update_rect.x_new, update_rect.y_new, update_rect.width_new, update_rect.height_new); gtk_widget_queue_draw_area (widget, update_rect.x, update_rect.y, update_rect.width, update_rect.height); As the result, my rectangular is in the last position. I dare to ask because I think I'm thinking in the wrong direction at all. Looking throught library reference I've found another widget: GtkImage, but I don't know how to use it. And confusing usage of gtk and gdk functions. Is this write? So. What is the right way to make moving picture using gtk+ library? Thoughts and ideas, links, listings are very welcome. Thank you for your attention, _______________________ Peter. _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list