public void StartControlSkin()
{
CalcRect();
AssignHandle(hsbBase.Handle);
hsbBase.SizeChanged += new EventHandler(hsbBase_SizeChanged);
hsbBase.LocationChanged += new EventHandler(hsbBase_LocationChanged);
hsbBase.VisibleChanged += new EventHandler(hsbBase_VisibleChanged);
//构造一个假的滚动条
FakeScrollBar = new Control();
hsbBase.Parent.Controls.Add(FakeScrollBar);
FakeScrollBar.Location = hsbBase.Location;
FakeScrollBar.Size = hsbBase.Size;
FakeScrollBar.Visible = hsbBase.Visible;
FakeScrollBar.Paint += new PaintEventHandler(FakeScrollBar_Paint);
FakeScrollBar.BringToFront();
hsbBase.SendToBack();
mp = new MessagePortal(FakeScrollBar.Handle, hsbBase.Handle);
mp.OpenPortal();
}