private void checker_Click(object sender, RoutedEventArgs e)
{
BitMaskChangedArgs args = new BitMaskChangedArgs(_maskA, _maskB, _maskC);
if (checker.IsChecked == true)
OnBitMaskAdded(args);
else
OnBitMaskRemoved(args);
}
protected virtual void OnBitMaskRemoved(BitMaskChangedArgs e)
{
if (BitMaskRemoved != null)
BitMaskRemoved(this, e);
}