Microsoft Game Development Kit (GDK) API タスクの実行

// Set up the async block and completion callback.
XAsyncBlock* async = new XAsyncBlock{};
async->queue = taskQueue;
async->context = nullptr;
async->callback = [](XAsyncBlock* async)
{
    XUserHandle newUser = nullptr;
    HRESULT result = XUserAddResult(async, &newUser);
    // Handle the completion callback.
    delete async;
};

// Start the async call.
HRESULT hr = XUserAddAsync(XUserAddOptions::None, async);
if (FAILED(hr))
{
    delete async;
}