private void FrmColorSccrollBarSkin_Load(object sender, EventArgs e)
{
String demo = "ColorSccrollBarSkin Demo";
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 100; i++)
sb.AppendLine(demo);
this.tbDemo.Text = sb.ToString();
_skin = new ColorSccrollBarSkin(this.tbDemo.Handle);
}