protected virtual void DateTimePickerDrawBorder (DateTimePicker dateTimePicker, Graphics g, Rectangle clippingArea)
{
this.CPDrawBorder3D (g, dateTimePicker.ClientRectangle, Border3DStyle.Sunken, Border3DSide.Left | Border3DSide.Right | Border3DSide.Top | Border3DSide.Bottom, dateTimePicker.BackColor);
}