internal int AddSwoop(Swoop indicator)
{
var index = 0;
lock (Swoops)
{
// get a new counter
index = System.Threading.Interlocked.Increment(ref SwoopCount);
// add a new swoop
Swoops.Add(index, indicator);
}
// force a refresh
IsDirty = true;
Refresh();
return(index);
}
