C#.Net 讓EventArgs也能判斷滑鼠動作

EventArgs是一個主要事件的基底基層，所以我們只要將EventArgs強制轉型成MouseEventArgs就好了

private void lkl_ForgetPsw_DoubleClick(object sender, EventArgs e)
{
  MouseEventArgs Mouse = (MouseEventArgs)e;
  if (Mouse.Button == MouseButtons.Left)
  {
     MessageBox.Show("Ok");
   }

}