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</o:shapelayout></xml><![endif]--></head><body lang=PL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I try to understand how focus is managed in XI2 environment with multiple input devices (MPX). I noticed that Openbox sends <i>SetInputFocus</i> request to set focus on window which was clicked. Openbox works properly with multiple cursors and keyboards from XI2 extension, I can use one master device pair to operate on one window and another master pair to operate on another window. But Openbox does not use XI2 extension and uses core <i>SetInputFocus</i> request which does not define device id. </span><span lang=EN-GB>In XI2 focus is set for the given master keyboard device to the given X window (</span><i><span lang=EN-US style='color:black'>XISetFocus</span></i><span lang=EN-US style='color:black'> method</span><span lang=EN-US> <span style='color:black'><a href="http://www.x.org/archive/X11R7.5/doc/man/man3/XIGetFocus.3.html">http://www.x.org/archive/X11R7.5/doc/man/man3/XIGetFocus.3.html</a></span></span><span lang=EN-US style='font-size:13.5pt;color:black'>)</span><span lang=EN-GB>. </span><span lang=EN-US> I think that If server receives <i>SetInputRequest</i> request which does not contain device id then server shouldn’t know on which device it should set focus to the given window. But it works and I have no idea how it works. How does server know on which keyboard master device to set the focus? Maybe when X server receives <i>SetInputFocus request </i>it checks which master pointer is on window contained in request and sets focus on master keyboard which is a pair of master pointer. I posted question on superuser StackExchange (<a href="http://superuser.com/questions/813939/how-focus-is-managed-in-x-window-system-with-xi2">http://superuser.com/questions/813939/how-focus-is-managed-in-x-window-system-with-xi2</a>) but It has remained unanswered. I used <i>xscope</i> to monitor communication between X server, Openbox and other clients. May be <i>xscope</i> does not show everything. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Please explain me how it works.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Mariusz Kulig<o:p></o:p></span></p></div></body></html>