Prevent showing system context menu on right click on Form title bar

Question

How can I disable right click on title bar of the form and prevent showing system context menu:

Help me to get out of this issue

thank you

winforms = winapi, you could [process windows messages](https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.message) and prevent certain to reach `base.WndProc()`. Not sure how exactly though. — Sinatr, Nov 21 '19 at 12:09
@moathnaji In fact the suggested duplicate has nothing to do with this question. — Reza Aghaei, Nov 21 '19 at 14:06

Reza Aghaei · Accepted Answer · 2019-11-21T12:34:23.343

If you specifically want to disable showing system context menu on right click on window's title bar, you can handle WM_CONTEXTMENU:

const int WM_CONTEXTMENU = 0x007B;
protected override void WndProc(ref Message m)
{
    if (m.Msg == WM_CONTEXTMENU)
        m.Result = IntPtr.Zero;
    else
        base.WndProc(ref m);
}

If you also want to prevent the possibility of clicking on form's icon to show the context menu, then you can set ShowIcon property of the form to false:

this.ShowIcon = false;

score 0 · Answer 2 · answered Nov 21 '19 at 12:01

0

Have you tried setting your Window Style property to 'None'? This should remove the Title Bar's Context Menu completely.

answered Nov 21 '19 at 12:01

emmademontford

122
1
11

but I need title bar and want to disable right click. I Managed to stop double click now just need to stop right cliick – Nishtha Tarini Nov 21 '19 at 12:02
You'll need to use this code (or something similar) to capture the right mouse click. You'll want to use this in the MouseClick event of your title bar. [This link](https://www.codeproject.com/Articles/7273/How-to-detect-a-left-mouse-click-on-a-Winform-titl) may help you. `if (e.Button.ToString().ToLower()=="right")` `{` `//do whatever you need.` `}` – emmademontford Nov 21 '19 at 12:10

score 0 · Answer 3 · answered Nov 21 '19 at 12:25

You can achieve this by setting the ControlBox property of form to false.

public Form1()
{
     InitializeComponent();
     this.ControlBox = false;
}

No more Context Menu with Restore, Maximize Minimize, Close, Move will be displayed on Right Clicking on the Title Bar.

this.ControlBox = false;

Note: Above one line (this.ControlBox = false;), is the key and the Form1 Constructor with InitializeComponent() method call is shown is the sample, just to show the context.

Prevent showing system context menu on right click on Form title bar

3 Answers3

Linked