一种删除选定 LineShape 阴影效果的方法？

Question

有没有办法在选择lineShape时去掉LineShape阴影效果？

alt text http://lh4.ggpht.com/_1TPOP7DzY1E/S6kq2KQ-zdI/AAAAAAAADIg/tUy74j-EpQc/s800/capture4.png

我试过了

  Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
    Dim g As Graphics = e.Graphics
    g.SmoothingMode = SmoothingMode.AntiAlias
    Dim oldmode As SmoothingMode = g.SmoothingMode
    g.DrawLine(_Pen, X1, Y1, X2, Y2)
    g.SmoothingMode = oldmode
  End Sub

但最后，这对失效有一些反作用：当（在面板中）移动时，线会留下痕迹 - 不会正确失效。

Answer 1

将 SelectionColor 更改为透明。