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Asked: 2026-05-18T09:40:00+00:00

I need to move controls around when the scrollbar’s size change ( System.Windows.Forms.SystemInformation.VerticalScrollBarWidth ).

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I need to move controls around when the scrollbar’s size change (System.Windows.Forms.SystemInformation.VerticalScrollBarWidth).

I’m creating a control with custom scrollbars that go over the normal ones. This implies creating a new UserControl (not inheriting a built-in control) and playing around with panels so as to hide the normal scrollbars.

The custom control must have one “outer” panel at the right size, this one containing an “inner” panel larger than the outer panel, so the scrollbars do not appear. How much larger depends on System.Windows.Forms.SystemInformation.VerticalScrollBarWidth and HorizontalScrollBarHeight as was already answered. But then I must know if that changes when my app is running, as improbable as it seems.

This question is related to:
How do I know the current width of system scrollbar?

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1 Answer

  1. Editorial Team

    One must listen to Microsoft.Win32.SystemEvents.UserPreferenceChanged.
    As takrl mentioned, OnSystemColorsChanged gets called, but only once for me (Windows7, Framework 3.5)

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