主题：闪烁

 用双缓存试试。

  e.Form.panel.Gettype().GetProperty("DoubleBuffered",  Reflection.BindingFlags.Instance Or System.Reflection.BindingFlags.NonPublic).SetValue( e.Form.panel,True,Nothing)

如果是在对应控件设置的背景，你要对应设置对应控件的双缓存，类似

 Dim p As WinForm.PictureBox = e.Form.Controls("PictureBox1")
 p.baseControl.Gettype().GetProperty("DoubleBuffered",  Reflection.BindingFlags.Instance Or System.Reflection.BindingFlags.NonPublic).SetValue(p.baseControl,True,Nothing)