CODEWITHSUNDEEP
.netwinforms
jgauffin
jgauffin

Reputation: 101176

Specify taskbar icon for a MessageBox

How do I specify which icon a MessageBox should use in the taskbar? There are no MessageBox.Show overloads which let me select a taskbar icon, only an icon to use in the actual form.

Upvotes: 9

Views: 6087

Answers (3)

MRK
MRK

Reputation: 326

To be able to show an Icon for a MessageBox at Task bar, I found a way to avoid creating custom form, but somehow we will create a dummy form (or you can change it into anonymous form):

        using (Form dummy = new Form() { 
                        Icon = Properties.Resources.ico_Main_Logo
                        , TopMost = true 
                        , FormBorderStyle = System.Windows.Forms.FormBorderStyle.None
                        , Size = new System.Drawing.Size(0,0)
                        , BackColor = Color.White
                        , TransparencyKey = Color.White
                    })
        {
            dummy.Show();
            MessageBox.Show(dummy, "This is a MessageBox with Icon at Taskbar and on top of all windows", "Title Text", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

With above way, these useful features will be possible:

  • Show Icon for MessageBox at Task Bar. (I use Application Setting to load an Icon, you can do it from Disk or ...)
  • Show MessageBox window at Top of other windows. (if you do not want it then set TopMost = false )
  • Do not show MessageBox Icon at Task bar. (Just initial a simple Form at usage and remove dummy.Show(); line.)

Or just initial anonymous Form like this to hide MessageBox Icon from Task bar:

MessageBox.Show(new Form(), "This is a MessageBox Hide it from Taskbar", "Title Text", MessageBoxButtons.OK, MessageBoxIcon.Information);

Anyway, I just want share my new founds so it may help others too. Thank you.

This works fine, But I do not know why even when I set Size of Form to (0, 0) it still have a size of 131x37!!! But because the Form set as Transparency, It will be not visible and mouse pointer will click trough.

Upvotes: 3

alex
alex

Reputation: 3720

I don't think it's possible to change the taskbar icon; your only option would be to make your own MessageBox.

Upvotes: 7

user541686
user541686

Reputation: 210755

Short answer: You can't.

Short answer #2: You need to make your own form for this, and display it manually.

Upvotes: 3

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