Multi-monitor configuration - related question

Christopher Barry christopher.barry at
Sun Feb 13 00:53:32 UTC 2022

On Mon, 7 Feb 2022 02:05:28 +0000
Michael Faynberg <mfaynberg at> wrote:

>Dear Madam/Sir,
>I have an XLib-based application (however old), which is running by
>opening a terminal session from a Windows client computer on an
>OpenVms server. It is running OK unless the client machine has
>multiple monitors. In that case we experience the following problems:
>1.       I cannot drag the top window completely from one monitor to
>another: however I try, the part of this window still stays "stuck" to
>the original monitor;
>2.       When one is trying to maximize the top window, it extends to
>the full screen meaning the bounding rectangle of all the monitors
>present - but I would like to restrict it so that it would occupy the
>physical screen rather than the logical one. I cannot locate any way
>for doing that though. I can not determine:
>a.       The index (for example, or some sort of identification) of
>the current monitor, where "current" means the monitor the top program
>window is located at;
>b.      The dimensions of the current monitor;
>               The calls to the XHeightOfScreen() and XWidthOfScreen()
> return the size of the logical screen without the taskbar, which
> makes the situation even more confusing... How can I find out then
> where the taskbar is located and what is its width - for that matter?
> If I could answer these questions at list I would have tried to
> implement some empirical logic assuming that all monitors attached
> are of the same size... which is certainly not guaranteed but can be
> tolerated at the moment if there is no better solution.
>Anyway, I will greatly appreciate your help on this issue!
>Best regards,
>Mike Faynberg
>mfaynberg at<mailto:mfaynberg at>

Something you might want to consider is running a Virtual Machine on
the Windows box (VirtualBox is free and pretty good). You can install
and run Linux in the VM, it will get a single virtual monitor, and you
can maximize this on a single Windows monitor.

From the VM you can connect to your OVMS server and run the app in the
VM. You'll only have the real estate of the single monitor, but it
won't be as confusing or weird.

Good Luck,

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