Hi, i have problems created a shaped (partly transparent) cairo overlay over a gdkwindow (a gtkdrawablearea already being used to display a pixmap).
The problem: i am adding some "OSD" controls to a gtk map renderer. My first attempt was to directly draw my controls into the pixmap used for the map and remove/redraw them whenever the map is being used. This works fine in most cases. But the map can be moved via mouse drags and hence the pixmap may be moved such that it's not covering the area where the controls are supposed to be placed anymore (the controls would just have to be placed outside the pixmap). There are imho three solutions for my problem: - extend the pixmap by one window width and height into each direction so the user just cannot drag the map off the window. The downside: i need a pixmap nine times bigger than the window which is imho a waste of memory - just hide my controls while the user drags the map. i just don't like this, but this will be my backup solution - draw someting on top of the pixmap after it's being drawn. Therefore i need something transparent i can draw. But i don't find a way to draw a cairo surface directly onto the gdkwindow (after the map itself has been drawn). Any help is appreciated! Till _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
