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Subject: Re: XWin in Multiwindow mode - window opens up 8 pixels from the left
To: cygwin AT cygwin DOT com
References: <CAMKht8hM=PrBeLzmgB25zzCB2OZOKEugSEy_qHKzejZ1j9osWw AT mail DOT gmail DOT com>
From: Jon TURNEY <jon DOT turney AT dronecode DOT org DOT uk>
Reply-To: cygwin AT cygwin DOT com
Cc: Michael DePaulo <mikedep333 AT gmail DOT com>
Message-ID: <5599781F.3060006@dronecode.org.uk>
Date: Sun, 5 Jul 2015 19:31:59 +0100
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On 05/07/2015 16:11, Michael DePaulo wrote:
> I've noticed that if I start XWin in -multiwindow mode:
> xwin -multiwindow
> And then open up a window in what should be the top-left corner of the screen:
> $ xlogo -geometry 2048x1152+0+0
> The window instead opens up 8 pixels from the left:
> http://imgur.com/89iWRgg
>
> I am not sure if this is intentional behavior of the internal window
> manager, or a bug. Either way, I thought I would mention it.
>
> It does not occur in Rootless mode.

I think this behaviour is intended.

When we apply the window style to the window, the position of the window 
is adjusted to ensure that window decorations at the top-left are 
visible.  See [1].  To do otherwise would make it unnecessarily 
difficult to move the window.

[1] 
http://cgit.freedesktop.org/~jturney/xserver/tree/hw/xwin/winmultiwindowwndproc.c?h=cygwin-patches-for-1.17#n1249

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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