/// <summary>
/// Ctor: take parent.
/// </summary>
public ZenScrollBar(ZenControlBase parent, SubscribeScrollTimerDelegate subscribeScrollTimer)
: base(parent)
{
this.subscribeScrollTimer = subscribeScrollTimer;
Width = (int)(Scale * ((float)ZenParams.ScrollBarWidth));
pad = Width / 4;
acceleration = acceleration * Scale;
deceleration = deceleration * Scale;
maxSpeed = maxSpeed * Scale;
doInitAnimVals();
Application.AddMessageFilter(this);
}