How to make a window have taskbar text but no title bar

Question

How can I make my window not have a title bar but appear in the task bar with some descriptive text? If you set the Form's .Text property then .net gives it a title bar, which I don't want.

        this.ControlBox = false;
        this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
        this.MaximizeBox = false;
        this.MinimizeBox = false;
        this.ShowInTaskbar = true;
        this.Text = "My title for task bar";

I've found a partial solution, to override CreateParams:

    protected override System.Windows.Forms.CreateParams CreateParams
    {
        get
        {
            System.Windows.Forms.CreateParams cp = base.CreateParams;
            cp.Style &= ~0x00C00000; // WS_CAPTION
            return cp;
        }
    }

However this causes my window to be resized as if they have a title bar, ie it's taller than it should be. Is there any good solution to this?

Answer 1

In my case I have a Form with FormBorderStyle = FormBorderStyle.SizableToolWindow and the following CreateParams override did the trick (i.e. I now have a form without caption and without additional margin for the title, but it keeps the title in the task bar):

protected override System.Windows.Forms.CreateParams CreateParams
{
    get
    {
        var parms = base.CreateParams;
        parms.Style &= ~0x00C00000; // remove WS_CAPTION
        parms.Style |= 0x00040000;  // include WS_SIZEBOX
        return parms;
    }
}