多人遊戲活動的範例程式碼

auto async = std::make_unique<XAsyncBlock>();
async->queue = queue;
async->callback = [](XAsyncBlock* async)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ async }; // Take ownership of XAsyncBlock.
    HRESULT hr = XAsyncGetStatus(async, false);
};

XblMultiplayerActivityInfo info{};
info.connectionString = "dummyConnectionString";
info.joinRestriction = XblMultiplayerActivityJoinRestriction::Followed;
info.maxPlayers = 10;
info.currentPlayers = 1;
info.groupId = "dummyGroupId";

HRESULT hr = XblMultiplayerActivitySetActivityAsync(
    xblContext,
    &info,
    false,
    async.get()
);

if (SUCCEEDED(hr))
{
    async.release();
}

auto async = std::make_unique<XAsyncBlock>();
async->queue = queue;
async->callback = [](XAsyncBlock* async)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ async }; // Take ownership of XAsyncBlock.

    size_t resultSize{};
    HRESULT hr = XblMultiplayerActivityGetActivityResultSize(async, &resultSize);
    if (SUCCEEDED(hr))
    {
        std::vector<uint8_t> buffer(resultSize);
        XblMultiplayerActivityInfo* activityInfo{};
        size_t resultCount{};
        hr = XblMultiplayerActivityGetActivityResult(async, buffer.size(), buffer.data(), &activityInfo, &resultCount, nullptr);
        if (SUCCEEDED(hr))
        {
            // ...
        }
    }
};

HRESULT hr = XblMultiplayerActivityGetActivityAsync(
    xblContext,
    &xuid,
    1,
    async.get()
);

if (SUCCEEDED(hr))
{
    async.release();
}

auto async = std::make_unique<XAsyncBlock>();
async->queue = queue;
async->callback = [](XAsyncBlock* async)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ async }; // Take ownership of XAsyncBlock.
    HRESULT hr = XAsyncGetStatus(async, false);
};

HRESULT hr = XblMultiplayerActivityDeleteActivityAsync(xblContext, async.get());

if (SUCCEEDED(hr))
{
    async.release();
}

auto async = std::make_unique<XAsyncBlock>();
async->queue = queue;
async->callback = [](XAsyncBlock* async)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ async }; // Take ownership of XAsyncBlock.
    HRESULT hr = XAsyncGetStatus(async, false);
};

HRESULT hr = XblMultiplayerActivitySendInvitesAsync(
    xblContext,
    &xuid,
    1,
    true, // Setting false will send the invite to only players on the sender's platform.
    "dummyConnectionString",
    async.get()
);

if (SUCCEEDED(hr))
{
    async.release();
}

auto async = std::make_unique<XAsyncBlock>();
async->queue = queue;
async->callback = [](XAsyncBlock* async)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ async }; // Take ownership of XAsyncBlock.
    HRESULT hr = XGameUiShowMultiplayerActivityGameInviteResult(async);
    if (hrAsync == S_OK) 
    { 
        // Handle success 
    } 
    else 
    { 
        // Likely will only happen during development - usually indicates 
        // an invalid user was passed in or that there is no multiplayer activity set
    }     
};

HRESULT hr = XGameUiShowMultiplayerActivityGameInviteAsync(
    async.get()
    requestingUser
);

if (SUCCEEDED(hr))
{
    async.release();
}

void CALLBACK MyXGameInviteEventCallback(
    _In_opt_ void* context,
    _In_ const char* inviteUri)
{
    if (inviteUri != nullptr)
    {
        std::string uri{ inviteUri };
        size_t invitedUserBegin = uri.find("invitedUser=");
        size_t senderBegin = uri.find("sender=");
        std::string invitedUser = uri.substr(invitedUserBegin, uri.find('&', invitedUserBegin) - invitedUserBegin);
        std::string sender = uri.substr(senderBegin, uri.find('&', senderBegin) - senderBegin);
        std::string connectionString = uri.substr(uri.find("connectionString="));

        // ...
    }
}

XTaskQueueRegistrationToken token = { 0 };
HRESULT hr = XGameInviteRegisterForEvent(
    queue,
    nullptr,
    MyXGameInviteEventCallback,
    &token
    );

// ...
bool result = XGameInviteUnregisterForEvent(token, true);

XblMultiplayerActivityRecentPlayerUpdate update{ xuid };
HRESULT hr = XblMultiplayerActivityUpdateRecentPlayers(xblContext, &update, 1);

auto async = std::make_unique<XAsyncBlock>();
async->queue = queue;
async->callback = [](XAsyncBlock* async)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ async }; // Take ownership of XAsyncBlock.
    HRESULT hr = XAsyncGetStatus(async, false);
};

HRESULT hr = XblMultiplayerActivityFlushRecentPlayersAsync(xblContext, async.get());
if (SUCCEEDED(hr))
{
    async.release();
}