> --- Paul Davis <paul@xxxxxxxxxxxxxxxxxxxxx> wrote: > >So, say in Gimp >for example, when does the drawing area widget emit >> the >> >map event? >> >> whenever the window is made visible on the screen after it was >> created >> or unmapped. >> >> by contrast, expose_event is emitted for any necessary redraw. >> >> you generally don't need map_event - its useful for obscure hacks and >> not a lot else. >> >> --p > >So you are saying as long as the drawing_area_widget is on the screen, >it will emit the map_event? no. it is emitted once per mapping-onto-screen. this mapping-onto-screen occurs after it has been realized+shown, and then might occur again if it is hidden and then shown again. >So say if I want to display animation with the drawing_area_widget, I >don't need to set the gtk_idle function to the rendering function. >Instead I just create the rendering function as the callback function >for the map_event, since map_event is constantly being emitted by the >widget as long as it's visible. Correct? no. you would need to use a timer function or an idle function or both depending on how you want to approach it. map_event has nothing to do with this. --p _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
