public InterstitialClient(string adAppId, string adUnitId) { interstitialClientPtr = (IntPtr)GCHandle.Alloc(this); InterstitialPtr = Externs.ZPLADCreateInterstitial(interstitialClientPtr, adAppId, adUnitId); Externs.ZPLADSetInterstitialAdCallbacks( InterstitialPtr, InterstitialDidReceivedAdCallback, InterstitialDidFailToReceiveAdWithErrorCallback, InterstitialVideoDidStartPlayingCallback, InterstitiaDidClickCallback, InterstitialVideoDidCloseCallback, InterstitialDidCompleteCallback ); }