"Stephen J Baker" <sjbaker@xxxxxxxx> wrote: >[...] It's >not as simple as setting the X cursor to the right thing because when >you are zoomed right in and painting with a huge brush, you can end >up with a cursor that covers half the screen! For X11, using the ordinary cursor up the maximum size is obvious; whether then to use a masked pixmap or chain of line segments is a matter of benchmarking under different circumstances (remote vs local X server, different server cleverness etc). For instance, a masked pixmap requires little bandwidth once it has been transferred to the server, but might be slow if the server handles sparse masked blits in a bad way. Line segments need more bandwidth per mouse motion but are potentially cheaper to render. Implementing either is not hard, but I (being primarily an Xlib programmer) don't know how if gdk/gtk have the necessary primitives