基本的な DRM とライセンス チェック

void CALLBACK LicenseCheck(XAsyncBlock *async)
{
    XStoreGameLicense license;
    HRESULT hr = XStoreQueryGameLicenseResult(async, &license);
    if (SUCCEEDED(hr))
    {
        if (!license.isActive)
        {
            // Failed to retrieve a license
            // Consider the title to be unlicensed
        }
        else
        {
            if (license.isTrial)
            {
                // Validated that the user has a trial license
                // Check additional attributes to ensure active trial
                // See "Implementing Trials for your game"
            }
            else
            {
                // Validated that the user has a real license
                // Consider the title to be licensed and continue
            }
        }
    }
    else
    {
        // Failed to retrieve a license
        // Consider the title to be unlicensed
    }

    delete async;
}

void CheckLicense()
{
    auto async = new XAsyncBlock{};
    async->context = this;
    async->queue = m_asyncQueue;
    async->callback = LicenseCheck;

    HRESULT hr = XStoreQueryGameLicenseAsync(
        storeContext,
        async);

    if (FAILED(hr))
    {
        // StoreContext may be invalid
        // If loose deployed or side-loaded package, check that the game configured to be licensed
        // See "Enabling XStore development and testing"

        delete async;
    }
}