/// <summary>
/// Clear call backs for scanning
/// </summary>
/// <returns>Number of events removed from call backs</returns>
public int ClearCallers()
{
int?c = 0;
if (ScanResult != null)
{
c += ScanResult?.GetInvocationList().Count();
foreach (Delegate d in ScanResult?.GetInvocationList())
{
ScanResult -= (EventHandler <NordicScanResultEventArgs>)d;
}
}
if (ScanFailure != null)
{
c += ScanFailure?.GetInvocationList().Count();
foreach (Delegate d in ScanFailure?.GetInvocationList())
{
ScanFailure -= (EventHandler <NordicScanFailureEventArgs>)d;
}
}
return(c ?? 0);
}
