public Form1()

{

InitializeComponent();

this.ControlBox = false;   // 設置不出現關閉按鈕

}

//禁用窗體的關閉按鈕

private const int CP_NOCLOSE_BUTTON = 0x200;

protected override CreateParams CreateParams

{

get

{

CreateParams myCp = base.CreateParams;

myCp.ClassStyle = myCp.ClassStyle | CP_NOCLOSE_BUTTON;

return myCp;

}

}

private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)

{

e.Cancel = true;

}

// 重寫OnClosing使點擊關閉按鍵時窗體能夠縮進托盤

protected override void OnClosing(CancelEventArgs e)

{

this.ShowInTaskbar = false;

this.WindowState = FormWindowState.Minimized;

e.Cancel = true;

}