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> Use this file to discover all available pages before exploring further.

# PFEntityUnregisterTokenExpiredEventHandler

> 注销先前注册的回调。

注销先前注册的回调。

## 语法

```cpp theme={null}
void PFEntityUnregisterTokenExpiredEventHandler(  
    PFRegistrationToken token  
)  
```

### 参数

**`token`**   PFRegistrationToken

从 PFEntityRegisterTokenExpiredEventHandler 返回的令牌。

### 返回值

类型：void

## 要求

**头文件：** PFEntity.h

## 另请参阅

[PFEntity 成员](/services/playfab/api-references/c/pfentity/pfentity_members)


## Related topics

- [Services C API overview - PFEntity.h](/zh-CN/services/playfab/api-references/c/pfentity/pfentity_members.md)
- [实体句柄](/zh-CN/services/playfab/sdks/c/entity-handles.md)
- [PFEntityTokenExpiredEventHandler](/zh-CN/services/playfab/api-references/c/pfentity/functions/pfentitytokenexpiredeventhandler.md)
- [PFEntityRegisterTokenExpiredEventHandler](/zh-CN/services/playfab/api-references/c/pfentity/functions/pfentityregistertokenexpiredeventhandler.md)
- [PFEntityUnregisterTokenRefreshedEventHandler](/zh-CN/services/playfab/api-references/c/pfentity/functions/pfentityunregistertokenrefreshedeventhandler.md)