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Hiding the form from alt-tab menu

, 19 Dec 2010 CPOL 10K 10
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Hiding the form from alt-tab menu
This is a UI tweak for hiding the form from alt-tab menu.

protected override CreateParams CreateParams
{
   get
   {
      CreateParams cp = base.CreateParams;
      cp.ExStyle |= 0x80;
      return cp;
   }
}

Edit:
In order to make it work, you have to use Me.ShowInTaskbar = False

Description:

WS_EX_TOOLWINDOW bit is turned on by OR-ing ExStyle with 0x80.

The following always works,
Me.FormBorderStyle = FormBorderStyle.SizableToolWindow;
Me.ShowInTaskbar = False;

But if you have a borderless form, i.e., FormBorderStyle.None then ShowInTaskbar = False doesn't work. So, we should set the WS_EX_TOOLWINDOW to true in addition to Me.ShowInTaskbar = False.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

tumbledDown2earth
Software Developer
India India
is a poor software developer and thinker. Presently working on a theory of "complementary perception". It's a work in progress.

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GeneralReason for my vote of 1 My vote of 1, to post the code that ... Pin
prerakpatel9-Dec-10 21:23
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Walt Fair, Jr.9-Dec-10 13:50
subeditorWalt Fair, Jr.9-Dec-10 13:50 

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