C＃ - 从代码中隐藏在切换窗口（alt + tab）上创建的表单

Question

I have a form that can create another form like this.

private void AEGISBot(String option) {
        if (AEGIS == null) {
            AEGIS = new Form();
            AEGIS.ShowInTaskbar = false;
            AEGIS.TopMost = true;
            AEGIS.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            AEGIS.Size = new Size(396, 191);
            //AEGIS.Size = new Size(720, 720);
            AEGIS.StartPosition = FormStartPosition.CenterScreen;
            AEGIS.BackColor = Color.LightBlue;
            AEGIS.TransparencyKey = AEGIS.BackColor;
            Label AEGISLabel = new Label();
            AEGISLabel.Location = new Point(0, 0);
            AEGISLabel.Size = new Size(AEGIS.Size.Width, AEGIS.Size.Height);
            AEGISLabel.TextAlign = ContentAlignment.MiddleCenter;
            AEGISLabel.Text = "AEGIS";
            AEGISLabel.Font = new Font("Agency FB", 120, FontStyle.Bold);
            AEGISLabel.ForeColor = System.Drawing.Color.Navy;
            AEGIS.Controls.Add(AEGISLabel);
        }

        if (option == "show"){
            AEGIS.Show();
        }
    }

But how to hide it from alt tab. I tried to add code like this.

protected override CreateParams CreateParams
    {
        get
        {
            CreateParams cp = base.CreateParams;
            cp.ExStyle |= 0x80;
            return cp;
        }
    }

My main form was successfully hidden from alt tab. But how to use it to created form ??

Thank you

-Edit

I am using Windows Form Application. With some form setting

this.ShowInTaskbar = false;
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
this.ShowIcon = false;
this.WindowState = FormWindowState.Minimized;

Answer 1

尝试使用AEGIS.ShowDialog()而不是AEGIS.Show() 。