How to send XI2 events from a client to the other client(s) ?

[Peter Hutterer]

On Mon, Aug 30, 2010 at 05:33:51PM +0900, Park Sung-Jin wrote:
> Hi,
> Thank you for your answer. :)
> 
> As you said, distinguishing between NotifyGrab and NotifyNormal of
> FocusIn/FocusOut event can be a good choice.
> But I have several applications which use their different toolkits
> concurrently such as GTK, Xt and others.
> 
> So I need a way to send key event to specific window(s) under specific
> delivery policy with toolkit independant way.
> That's why I didn't use XGrabKey and other grab functions.
> 
> As I already said, there is no function to send XI2 events from one to the
> other.
> Peter, do you have any plan to add/implement this functionality in the near
> future ?

the original plans were to extend XTEST to support XI2 as well, along with a
couple of other extensions that need this work done too. I can't give you an
ETA for that though, sorry.

Cheers,
  Peter

> Sung-Jin Park
> 2010/8/27 Daniel Stone <daniel at fooishbar.org>
> 
> > Hi,
> >
> > On Thu, Aug 26, 2010 at 09:02:40PM +0900, Park Sung-Jin wrote:
> > > My Xorg server and applications are running on mobile environment.
> >
> > Yeah, I figured. :)
> >
> > > Most of application windows are full screen and some application can get
> > > some keys
> > > even if they are not on the top of window stack.
> > >
> > > In the past, I used XGrabKey to get some keys in an application which was
> > on
> > > the bottom of window stack.
> > > Keys were delivered properly but everytime they delivered, focus window
> > > changed also.
> > > So the application which contains focused window received focus-out and
> > > focus-in events
> > > when every key delivered to other application window.
> > >
> > > So I chose that one special application grab all key events and delivered
> > > the events to the proper window via XSendEvent().
> >
> > Er, are the focus events a problem? Note that the detail is always
> > NotifyGrab, so you can distinguish them from actual explicit focus
> > change events, and ignore them if you like.  Nowhere near as problematic
> > as what you're doing now, and much lower latency too.
> >
> > Cheers,
> > Daniel
> >
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