%% Jack Dodds <brmdamon@xxxxxxxxx> writes: jd> Perhaps you know enough about how X works to answer this question: The internet knows all. One page I found in about 2 seconds by giving "X windows security" to Google is: http://bau2.uibk.ac.at/matic/ccxsec.htm jd> Let us suppose that an application owned by one user - in this jd> case "realplay" - is authorized to put a window on the display jd> owned by another user - in this case "jack". Either you can connect to the display, or you cannot. If you can connect to the display, you can run any client you like. jd> How much information can realplay get from jack's display? jd> Obviously if realplay's window "has the focus" then X will send jd> keyboard and mouse events to realplay's application. Is there a jd> way that realplay's application can get events (or other jd> information) from jack's display when realplay's window DOES NOT jd> have the focus? Absolutely. A client can get a complete screendump (that's what the snapshot program does for example), and it can also see every keypress that goes through the server. -- ------------------------------------------------------------------------------- Paul D. Smith <psmith@xxxxxxxxxxxxxxxxxx> HASMAT--HA Software Mthds & Tools "Please remain calm...I may be mad, but I am a professional." --Mad Scientist ------------------------------------------------------------------------------- These are my opinions---Nortel Networks takes no responsibility for them. _______________________________________________ gnome-list mailing list gnome-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gnome-list