public static bool IsDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
System.Windows.Point position = e.GetPosition(null);
long clickTicks = DateTime.Now.Ticks;
long elapsedTicks = clickTicks - _LastClickTicks;
long elapsedTime = elapsedTicks / TimeSpan.TicksPerMillisecond;
bool quickClick = (elapsedTime <= k_DoubleClickSpeed);
bool senderMatch = (_LastSender != null && sender.Equals(_LastSender.Target));
if (senderMatch && quickClick && position.Distance(_LastPosition) <= k_MaxMoveDistance)
{
// Double click!
_LastClickTicks = 0;
_LastSender = null;
return(true);
}
// Not a double click
_LastClickTicks = clickTicks;
_LastPosition = position;
if (!quickClick)
{
_LastSender = new WeakReference(sender);
}
return(false);
}
