ContextMenuForm Postion on Multi-Monitor System

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This is my first foray into C# - trying to 'fix' an open source app I'm using, so please be gentle!. The app window is docked to the right of my center monitor. When I right click, the context menu appears on my right-hand monitor and I want to keep it on the centre monitor.

I have a ContextMenuForm_opening event. Is that the best place to control the context menu position? And where in System does the multi-monitor / desktop size / monitor detection stuff live?

Cheers

Posted 2-Apr-12 13:52pm

Kyudos

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Sergey Alexandrovich Kryukov 2-Apr-12 19:59pm

To start with, there is no such event as "ContextMenuForm_opening", this is one of the possible handlers. Yes, such handler is a right place to change the menu position, before it was actually shown. The position itself may vary.
--SA

Sergey Alexandrovich Kryukov 2-Apr-12 20:01pm

The second question is simple, but you need to tag application type or UI library you use. WPF? Forms? Anything else?
--SA

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Sergey Alexandrovich Kryukov · Accepted Answer · 2012-04-02T14:13:00

With System.Windows.Forms, multi-monitor programming is done using the class System.Windows.Forms.Screen; please see:
http://msdn.microsoft.com/en-us/library/system.windows.forms.screen.aspx[^].

You can also work with virtual screen, it your system is configured so. Please see:
http://msdn.microsoft.com/en-us/library/system.windows.forms.systeminformation.virtualscreen.aspx[^].

With WPF, I don't know the analogous facilities. You can use Windows API through P/Invoke. Start here:
http://msdn.microsoft.com/en-us/library/dd162610%28v=vs.85%29.aspx[^].

With Windows 7, you can manage WPF screens with Jumplists using WindowsAPICodePack, please see this articles:
http://aimeegurl.com/2009/11/06/managing-wpf-screens-with-windows-7-jumplists-and-the-visual-state-manager/[^],
http://links.visibli.com/e411f38896eb5888/?web=1d37cf&dst=http%3A//windowsclient.net/wpf/wpf35/wpf-35sp1-toolkit-visual-state-manager-overview.aspx[^].

—SA