public static void RemoveOnV4VCResultMethod(AdColony.V4VCResultDelegate onV4VCResult)
 {
     AdColony.OnV4VCResult -= onV4VCResult;
 }
 //-----------------
 public static void AddOnV4VCResultMethod(AdColony.V4VCResultDelegate onV4VCResult)
 {
     AdColony.OnV4VCResult += onV4VCResult;
 }