HRESULT XStoreQueryProductForCurrentGameAsync(  
         const XStoreContextHandle storeContextHandle,  
         XAsyncBlock* async  
)  

void CALLBACK QueryProductForCurrentGameCallback(XAsyncBlock* asyncBlock)
{
    XStoreProductQueryHandle queryHandle = nullptr;

    HRESULT hr = XStoreQueryProductForCurrentGameResult(
        asyncBlock,
        &queryHandle);

    if (FAILED(hr))
    {
        printf("Failed retrieve the product query handle: 0x%x\r\n", hr);
        XStoreCloseProductsQueryHandle(queryHandle);
        return;
    }

    // Use result of query

     XStoreCloseProductsQueryHandle(queryHandle);
}

void QueryProductForCurrentGame(XStoreContextHandle storeContextHandle, XTaskQueueHandle taskQueueHandle)
{
    auto asyncBlock = std::make_unique<XAsyncBlock>();
    ZeroMemory(asyncBlock.get(), sizeof(*asyncBlock));
    asyncBlock->queue = taskQueueHandle;

    asyncBlock->callback = QueryProductForCurrentGameCallback;

    HRESULT hr = XStoreQueryProductForCurrentGameAsync(
        storeContextHandle,
        asyncBlock.get());

    if (FAILED(hr))
    {
        printf("Failed to get product for current game: 0x%x\r\n", hr);
        return;
    }
}