From: Kazuhiro Ito <kzhr@d1.dion.ne.jp>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 11513@debbugs.gnu.org
Subject: bug#11513: 24.1.50; raise-frame never raise the foreground window on Windows
Date: Wed, 23 May 2012 19:48:59 +0900 [thread overview]
Message-ID: <20120523104906.CAA5A34803A@msa103.auone-net.jp> (raw)
In-Reply-To: <83sjetxs9d.fsf@gnu.org>
At Mon, 21 May 2012 22:12:46 +0300,
Eli Zaretskii wrote:
> It's a very elusive problem. I managed to reproduce it on 1 system
> out of 3 to which I have constant access, and even that only for a few
> minutes and under some conditions. E.g., when lowering the frame left
> only the left side of the Emacs frame visible, the bug would manifest
> itself; whereas when its right side was visible, it won't. And once I
> reshuffled the other windows a bit, the bug disappeared and I couldn't
> reproduce it anymore.
>
> Do you get the faulty behavior consistently?
raise-frame always make the unexpected result when Emacs frame is
the foreground window (I mean Emacs frame is colored as active window)
and behind of other application window(s). And, as I described
previously, If Emacs frame is not the foreground window raise-frame
correctly works.
> If so, what's your value of this Registry key:
> HKEY_CURRENT_USER\Control Panel\Desktop\UserPreferencesMask
Key's value is '98 12 07 80 12 00 00 00'.
> . The documentation of SetForegroundWindow
> (http://msdn.microsoft.com/en-us/library/windows/desktop/ms633539%28v=vs.85%29.aspx)
> lists quite a few of conditions under which the function will
> succeed; are you sure at least one of them was true when you tried?
> can you look at the value of 'retval' after the function returns
> without bringing the frame to the foreground?
I believe that my test case qualifies some of conditions and I
confirmed SetForegroundWindow returns 1 even when the unexpected
result has been made.
> . This page:
> http://stackoverflow.com/questions/1544179/what-are-the-differences-between-bringwindowtotop-setforegroundwindow-setwindo
>
> seems to tell that BringWindowToTop might fail as well, if it is
> applied to a child window. What does this mean in terms of Emacs
> frames?
I don't know exactly, but I think a child window is a windows created
with WS_CHILD style. In Emacs, w32_createscrollbar would make scroll
bar as a child window.
--
Kazuhiro Ito
next prev parent reply other threads:[~2012-05-23 10:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-18 21:06 bug#11513: 24.1.50; raise-frame never raise the foreground window on Windows Kazuhiro Ito
2012-05-19 8:02 ` Eli Zaretskii
2012-05-19 12:02 ` Kazuhiro Ito
2012-05-19 12:42 ` Eli Zaretskii
2012-05-19 12:56 ` martin rudalics
2012-05-19 13:47 ` Eli Zaretskii
2012-05-21 19:12 ` Eli Zaretskii
2012-05-23 10:48 ` Kazuhiro Ito [this message]
2012-05-23 16:20 ` Eli Zaretskii
2012-05-23 16:38 ` Drew Adams
2012-05-24 6:04 ` Kazuhiro Ito
2012-05-24 16:01 ` Lennart Borgman
2012-05-28 17:28 ` Eli Zaretskii
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