Re: XRaiseWindow for activating windows in multiwindow mode

[Patrick Herbst <paherbst@gmail.com>]

On 03 Sep 2011, Jon TURNEY wrote:
>
> On 13/08/2011 19:39, Oliver Schmidt wrote:
> > as reported in
> >
> >    http://www.cygwin.com/ml/cygwin-xfree/2005-06/msg00072.html
> >
> > windows are not raised from the Cygwin X Server in multiwindow
> > mode, if a program wants to programmatically activate a window.
> >
> > I played around and figured out that the problem can be solved by
> > invoking the windows function SetForegroundWindow if a top level
> > window is to be restacked and has no previous sibling.
> >
> > I enclose the patch in this email. It works fine for me, but
> > I'm not sure if it has any side effects for other configurations
> > or usage patterns.
>
> Thanks for looking into this, and for the patch.
>
> There definitely are some problems in this area, but I'm not sure this is the
> 'correct' fix, though.
>
> The code as it stands is the product of some ... erm ... historical compromises.
>
> If I am reading the code correctly, it looks like currently no attempt is made
> to synchronize changes in the X window Z-order (e.g. made by XRaiseWindow())
> to the native Windows window Z-order, and the comment in [1] seems to bear
> this out.  The code which perhaps would do this is in the disabled branch of
> the #if/#else/#endif in winRestackWindowMultiWindow()
>
> The relevant thread seems to be [2] and the relevant change seems to be [3],
> but I can't reconstruct the reasoning behind it.
>
> As discussed in the thread [2] various scenarios, e.g. AOT windows, native
> windows interleaved with X windows in the native Z order, Windows with
> focus-follows-mouse enabled via TweakUI all need testing after trying to fix
> this, to ensure you haven't regressed them.
>
> [1] http://sourceware.org/ml/cygwin-xfree/2004-12/msg00074.html
> [2] http://sourceware.org/ml/cygwin-xfree/2004-03/msg00540.html
> [3]
> http://cgit.freedesktop.org/xorg/xserver/commit/?h=CYGWIN&id=40bb4441ac7c87cfa0c62e8553c7e53b9fe4d765
>
> > It would be nice if this feature could be integrated into future
> > versions of the Cygwin X Server.
> >
> > Best regards,
> > Oliver
> >

Is there a fix planned for this?  I too use applications that make use
of XRaiseWindow to navigate around multiple windows, and it doesn't
work.

Anyone have any info on this issue??

Thanks!
Patrick Herbst

Ref: https://cygwin.com/ml/cygwin-xfree/2011-09/msg00000.html

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