> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# XGameActivationCallback

> XGameActivationCallback

# XGameActivationCallback

应用程序为激活事件定义的回调。

## Syntax

```cpp theme={null}
void CALLBACK XGameActivationCallback(  
         void* context,  
         const XGameActivationInfo* activationInfo  
)  
```

### Parameters

*context*   \_In\_opt\_\
类型：void\*

传递给 [XGameActivationRegisterForEvent](/reference/system/xgameactivation/functions/xgameactivationregisterforevent) 的上下文。

*activationInfo*   \_In\_\
类型：[XGameActivationInfo](/reference/system/xgameactivation/structs/xgameactivationinfo)\*

指向包含激活信息的 [XGameActivationInfo](/reference/system/xgameactivation/structs/xgameactivationinfo) 结构的指针。`type` 字段指示激活类型，相应的联合字段包含相关数据。

### Return value

类型：void

## Remarks

若要注册激活事件的回调，请调用 [XGameActivationRegisterForEvent](/reference/system/xgameactivation/functions/xgameactivationregisterforevent)。该函数使用指向 **XGameActivationCallback** 的指针作为参数。

若要取消注册激活事件的回调，请调用 [XGameActivationUnregisterForEvent](/reference/system/xgameactivation/functions/xgameactivationunregisterforevent)。

回调接收 [XGameActivationInfo](/reference/system/xgameactivation/structs/xgameactivationinfo) 结构。检查 `type` 字段以确定激活类型，并适当地处理每种类型。

<Note>此回调同时替代 `XGameProtocolActivationCallback` 和 `XGameInviteEventCallback`。有关迁移指南，请参阅 [XGameActivation](/reference/system/xgameactivation/xgameactivation_members)。</Note>

以下代码示例注册激活回调并处理所有激活类型。

```cpp theme={null}
#include <XTaskQueue.h>
#include <XGameActivation.h>

XTaskQueueHandle g_taskQueue;
XTaskQueueRegistrationToken g_activationToken;

void CALLBACK OnActivation(void* context, const XGameActivationInfo* activationInfo)
{
    switch (activationInfo->type)
    {
    case XGameActivationType::Protocol:
        // Perform your game action based on activationInfo->protocolUri
        HandleProtocolActivation(activationInfo->protocolUri);
        return;

    case XGameActivationType::File:
        // e.g. Load the game file; activationInfo->file
        HandleFileActivation(activationInfo->file);
        return;

    case XGameActivationType::PendingGameInvite:
        // Game has received a game invite. Handle it by giving the user the option to
        // accept or reject the invite via UI.
        {
            bool userAcceptsInvite = HandlePendingGameInviteWithUI(activationInfo->inviteUri);
            if (userAcceptsInvite)
            {
                XGameActivationAcceptPendingInvite(activationInfo->inviteUri);
            }
        }
        return;

    case XGameActivationType::AcceptedGameInvite:
        // e.g. Join the game session that we are invited to
        HandleGameInvite(activationInfo->inviteUri);
        return;

    default:
        // Other unknown activation types. Just ignore.
        return;
    }
}

void InitializeGame()
{
    XGameActivationRegisterForEvent(g_taskQueue, nullptr, OnActivation, &g_activationToken);
}

void ShutdownGame()
{
    XGameActivationUnregisterForEvent(g_activationToken, true);
}
```

## Requirements

**头文件：** XGameActivation.h

**库：** xgameruntime.lib

**受支持的平台：** Windows、XBOX One 系列主机和 XBOX Series 主机

## Conceptual documentation

* [文件类型激活](https://learn.microsoft.com/gaming/gdk/docs/gdk-dev/overviews/filetypeactivation)
* [接收邀请](/services/xbox-services/multiplayer/invites/how-to/live-invites-receive)

## See also

[XGameActivation](/reference/system/xgameactivation/xgameactivation_members)

[XGameActivationRegisterForEvent](/reference/system/xgameactivation/functions/xgameactivationregisterforevent)

[XGameActivationUnregisterForEvent](/reference/system/xgameactivation/functions/xgameactivationunregisterforevent)

[XGameActivationInfo](/reference/system/xgameactivation/structs/xgameactivationinfo)

[XGameActivationType](/reference/system/xgameactivation/enums/xgameactivationtype)


## Related topics

- [XGameActivationType](/zh-CN/reference/system/xgameactivation/enums/xgameactivationtype.md)
- [XGameActivationInfo](/zh-CN/reference/system/xgameactivation/structs/xgameactivationinfo.md)
- [XGameActivationRegisterForEvent](/zh-CN/reference/system/xgameactivation/functions/xgameactivationregisterforevent.md)
- [XGameActivationUnregisterForEvent](/zh-CN/reference/system/xgameactivation/functions/xgameactivationunregisterforevent.md)
- [XGameProtocolActivationCallbackXGameProtocol (deprecated)](/zh-CN/reference/system/xgameprotocol/functions/xgameprotocolactivationcallback.md)