Comments on: Hide Form from Alt+Tab

By: Enamur0

Enamur0 — Fri, 29 Apr 2011 08:48:27 +0000

Sweet, just what i was looking for.
You saved me a lot of trouble!

By: Gertmenkel

Gertmenkel — Tue, 26 Apr 2011 21:50:56 +0000

@Alessandro thanks for translating to VB.NET! I was looking for this.

By: Justin Clarke

Justin Clarke — Wed, 26 Jan 2011 11:28:30 +0000

So on the Minimize event set:

form1.FormBorderStyle = FormBorderStyle.FixedToolWindow;
form1.Visible = false;
form1.Opacity = 0;
form1.ShowInTaskbar = false;

Or no Normalize event set:

form1.FormBorderStyle = FormBorderStyle.FixedSingle;
form1.Visible = true;
form1.Opacity = 100;
form1.ShowInTaskbar = true;

By: Justin Clarke

Justin Clarke — Wed, 26 Jan 2011 11:10:29 +0000

To get it to work for me I added the Opacity setting as without that, when minimised, in the bottom left-hand corner of your Desktop you could see the top bar of your form.

Form form1 = new Form ( );

form1.FormBorderStyle = FormBorderStyle.FixedToolWindow;
form1.Visible = false;
form1.Opacity = 0;
form1.ShowInTaskbar = false;

Owner = form1;

By: premika

premika — Wed, 25 Aug 2010 08:38:47 +0000

+1… Thanks a lot.. SizableToolWindow worked for me.

By: mark

mark — Tue, 24 Aug 2010 13:09:10 +0000

how do you hide the form from the desktop after opening a new form?

By: Alessandro

Alessandro — Mon, 05 Jul 2010 16:54:54 +0000

and for vb.net developer :

Protected Overrides ReadOnly Property CreateParams() As CreateParams
Get
Dim cp As CreateParams = MyBase.CreateParams
‘ turn on WS_EX_TOOLWINDOW style bit
cp.ExStyle = cp.ExStyle Or &H80
Return cp
End Get
End Property

bye

By: Alessandro

Alessandro — Mon, 05 Jul 2010 16:53:51 +0000

many many thanks !!!

By: Matteo

Matteo — Fri, 30 Apr 2010 03:17:29 +0000

Oops, I forgot that to add the line

ShowInTaskbar = false;

For the form your are hiding.

By: Matteo

Matteo — Fri, 30 Apr 2010 03:15:59 +0000

Okay, I think I’ve found a definitive solution that simply is not sensitive to what kind of window style the window you are keeping hidden from Alt-Tab has. Just place this in the constructor of your form:

// Keep this program out of the Alt-Tab menu

Form form1 = new Form ( );

form1.FormBorderStyle = FormBorderStyle.FixedToolWindow;
form1.ShowInTaskbar = false;

Owner = form1;