c# - Drawing on multi screen with WPF -

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I created an application that displays the highest window on each monitor to cover all available space.

Then, I allow windows to draw a rectangle. Therefore, let me make a rectangle when I add the mouse to the mouse on the mouse and mouse click ... it is working when I underline a rectangle that starts at one window and the other ends. Of course, because this is not the same window ...

How can I allow drawing on both windows at the same time?

Thank you for your help,

You can create a window that is both The screen is spread over.

Use the screen collection in System.Windows.Forms (or wherever it is in WPF) and the WorkingAiria property to calculate the correct extension of the window.

Be careful with the multi-monitor setup where the primary screen is on the other side from the secondary screen or if the screen is placed at the top of each other

We do this successfully in our application Are there.


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