C# 指定彈出窗口位置

            messageForm messageform = new messageForm();//實例化窗體對象
           
            Point point = new Point(Screen.PrimaryScreen.WorkingArea.Width - messageform.Size.Width, Screen.PrimaryScreen.WorkingArea.Height - messageform.Size.Height);//窗體位置
          
            messageform.StartPosition = FormStartPosition.Manual;//窗體其實位置類型，manual由location指定
            messageform.Location = point;
            
            messageform.Show();