How do I know the current width of system scrollbar?

Question

As you know, one can customize the width of the scrollbar width in Display Properties -> Appearance -> Advanced -> Item: ScrollBar. The default value is 17. However, I can't assume this is always the case, is it possible for me to retrieve this value?

score 159 · Accepted Answer · edited Apr 06 '11 at 13:50

159

Look at the System.Windows.Forms.SystemInformation class members: HorizontalScrollBarHeight and VerticalScrollBarWidth.

edited Apr 06 '11 at 13:50

Frank Krueger

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answered May 13 '09 at 09:13

leppie

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score 36 · Answer 2 · edited Feb 17 '19 at 18:27

36

Vertical Scroll Bar Width

System.Windows.Forms.SystemInformation.VerticalScrollBarWidth;

edited Feb 17 '19 at 18:27

Uwe Keim

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answered Jan 21 '10 at 22:32

score 11 · Answer 3 · answered Apr 02 '14 at 12:34

11

If you want to know the size of a ScrollableControl minus the size of the scroll bar, the easiest way is to use the Control.ClientSize property.

From the documentation:

Gets or sets the height and width of the client area of the control. The client area of a control is the bounds of the control, minus the nonclient elements such as scroll bars, borders, title bars, and menus.

answered Apr 02 '14 at 12:34

Paolo M

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Unfortunately, ClientSize also includes the width of the scrollbar (yields same value as ActualWidth). Doesn't make sense though. – Oyvind Jun 09 '16 at 08:07

score 2 · Answer 4 · answered Jan 12 '16 at 23:57

Skip the ClientSize property of the control. At least in VS2013 the Scrollbar is included in the ClientSize.

When I formatted a RichTextBox with a width of 304 and a vertical scrollbar, the Client Size width was 300, which only accounted for the borders.

stick with the System.Windows.Forms.SystemInformation.VerticalScrollBarWidth to get your scrollbar width.

How do I know the current width of system scrollbar?

4 Answers4

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