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Editorial Team
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Asked: 2026-05-21T10:15:25+00:00

I build a WPF UserControl. This control has a transparent background. I want to

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I build a WPF UserControl. This control has a transparent background. I want to trap the MouseLeftButtonDown event, even when this event happens on the transparent background. If I change the background to “White”, or another color, the event is trapped as expected.

Is there a way to tell the control to listen for the event, even if it happens over a transparent area?

Thanks.

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1 Answer

  1. Editorial Team

    There is a difference in specifying no Background and specifying a transparent background:
    {x:Null} vs. Transparent?

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