<div dir="ltr">I tried xev and, correct me if I'm wrong, it can't get mouse clicks on other windows that the one it created itself. I just made some tests and it can't even get mouse motions events on it, (it detects only mouse motions events on borders and titlebar) probably because my app is a JAVA one (using libVLC through JNA which il a lib that allows to run native code in JAVA). Btw, xed behavior seems normal to me because, as we can read in the Xlib doc : "Only one client at a time can select a <a href="http://tronche.com/gui/x/xlib/events/keyboard-pointer/keyboard-pointer.html">ButtonPress</a> event, which is associated with the event mask <a href="http://tronche.com/gui/x/xlib/events/processing-overview.html#ButtonPressMask">ButtonPressMask</a>." Since libVLC get these events, what I want to do seems impossible... :( <div class="gmail_quote"> On Wed, Aug 20, 2008 at 1:10 PM, Samuel Thibault <<a href="mailto:samuel.thibault@ens-lyon.org">samuel.thibault@ens-lyon.org</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Benjamin BOUCHER, le Wed 20 Aug 2008 13:02:22 +0200, a écrit : <div class="Ih2E3d">> I want to make a C program which capture all mouse events, not only those from > a window I created myself, is it possible ? </div>You'll probably be happy reading the source code of xev. Samuel </blockquote></div> </div>