Thank you very much for the information. On Wed, Sep 16, 2009 at 11:23 AM, Jan Hudec <[email protected]> wrote:
> On Wed, Sep 16, 2009 at 10:29:02 +0300, Arkadi Viner wrote: > > Hello. > > I want to write a program which should record pressed sequences of keys > and > > if it receives some shortcut key it will > > send delete key to erase wrong typed content, then it will convert from > one > > language characters to an another (according to some translation map) and > > then send them again to the active application. > > It will help people who forgets to switch typing language when they > type... > > Maybe some one knows what I should look for? How to hook to an active > > application event listener or some how communicate > > directly with the X server? > > Both XCB and X11 libraries have bindings for vala, but I don't think either > of them is complete. See xcb.vapi and x11.vapi respectively. It might be > even > possible to use gdk (gdk-x11 is bound) for the even handling itself, but > you > will still need to find the windows with x11 (gdk-x11-2.0 depends on x11) > and > it's many extra dependencies if you didn't need your own gui. > > For the event handling itself, I believe X allows you to listen to events > on > any window on the display, independently of whether you created it, so if > you > find the window, you can simply register the events. > > Just be warned, that X sends keyboard events to the window under mouse and > modern gui libraries go to some length to get the events where they really > want them. It used to make life easier at times of athena widgets (which > simply didn't bother and used that semantics), but now it makes it harder > if > one wants to keep separate keyboard focus. > > -- > Jan 'Bulb' Hudec < > [email protected]> >
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