Taylor Sullivan
Taylor Sullivan

Reputation:

Opening a form in C# without focus

I am creating some always-on-top toasts as forms and when I open them I'd like them not to take away focus from other forms as they open. How can I do this?

Thanks

Upvotes: 12

Views: 7933

Answers (2)

Mark
Mark

Reputation: 161

It took me a few minutes using Adam's & Aaron's info above, but I finally got it to work for me. The one thing I had to do was make sure the form's Top Most property is set to false. Here is the code I used...

    protected override bool ShowWithoutActivation { get { return true; } }

    protected override CreateParams CreateParams
    {
        get
        {
            //make sure Top Most property on form is set to false
            //otherwise this doesn't work
            int WS_EX_TOPMOST = 0x00000008;
            CreateParams cp = base.CreateParams;
            cp.ExStyle |= WS_EX_TOPMOST;
            return cp;
        }
    }

Upvotes: 16

Adam Robinson
Adam Robinson

Reputation: 185583

protected override bool ShowWithoutActivation
{
    get
    {
        return true;
    }
}

Override this property in your form code and it should do the trick for you.

Upvotes: 17

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