static PurchasingAdapter() { var callbacks = new UnityPurchasingCallbacks { onRetrieveProductsCallback = OnRetrieveProducts, onPurchaseProductCallback = OnPurchaseProduct }; UnityPurchasingSetPurchasingAdapterCallbacks(ref callbacks); }
private static extern void UnityPurchasingSetPurchasingAdapterCallbacks(ref UnityPurchasingCallbacks callback);