> ## 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.

# XblAchievementUnlockAddNotificationHandler

> XblAchievementUnlockAddNotificationHandler

# XblAchievementUnlockAddNotificationHandler

註冊成就解除鎖定通知的事件處理常式。

## 語法

```cpp theme={null}
XblFunctionContext XblAchievementUnlockAddNotificationHandler(  
         XblContextHandle xblContextHandle,  
         XblAchievementUnlockHandler* handler,  
         void* handlerContext  
)  
```

### 參數

*xblContextHandle*   \_In\_\
類型：[XblContextHandle](/zh-TW/reference/live/xsapi-c/types_c/handles/xblcontexthandle)

本機使用者的 XBOX Live 內容。

*handler*   \_In\_\
類型：XblAchievementUnlockHandler\*

接收通知的回呼函式。

*handlerContext*   \_In\_opt\_\
類型：void\*

要傳遞給處理常式的呼叫端內容。

### 傳回值

類型：XblFunctionContext

可用來取消註冊事件處理常式的 XblFunctionContext 物件。

## 需求

**標頭：** achievements\_c.h

**程式庫：** Microsoft.Xbox.Services.14x.GDK.C.lib

## 另請參閱

[achievements\_c](/zh-TW/reference/live/xsapi-c/achievements_c/achievements_c_members)


## Related topics

- [XblAchievementUnlockRemoveNotificationHandler](/zh-TW/reference/live/xsapi-c/achievements_c/functions/xblachievementunlockremovenotificationhandler.md)
- [XblAchievementUnlockHandler](/zh-TW/reference/live/xsapi-c/achievements_c/functions/xblachievementunlockhandler.md)
- [XblAchievementsAddAchievementProgressChangeHandler](/zh-TW/reference/live/xsapi-c/achievements_c/functions/xblachievementsaddachievementprogresschangehandler.md)
- [XblAchievementUnlockEvent](/zh-TW/reference/live/xsapi-c/achievements_c/structs/xblachievementunlockevent.md)
- [XblAchievementsRemoveAchievementProgressChangeHandler](/zh-TW/reference/live/xsapi-c/achievements_c/functions/xblachievementsremoveachievementprogresschangehandler.md)