> ## Documentation Index
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# PHEAP_TRACK_FREE_ROUTINE callback

> PHEAP_TRACK_FREE_ROUTINE callback

# PHEAP\_TRACK\_FREE\_ROUTINE callback

表示用于堆释放的跟踪回调函数。

<a id="syntaxSection" />

## 语法

```cpp theme={null}
void PHEAP_TRACK_FREE_ROUTINE(  
         HANDLE Heap,  
         DWORD flags,  
         PVOID addr  
)  
```

<a id="parametersSection" />

### 参数

*Heap*   \
类型：HANDLE

从中释放内存块的堆的句柄。

*flags*   \
类型：DWORD

传递给 [HeapFree](https://learn.microsoft.com/windows/desktop/api/heapapi/nf-heapapi-heapfree) 的堆释放选项。

*addr*   \
类型：PVOID

已释放内存块的地址。

<a id="retvalSection" />

### 返回值

类型：void

无。

<a id="remarksSection" />

## 备注

可实现此回调函数，以跟踪之前由 [HeapAlloc](https://learn.microsoft.com/windows/desktop/api/heapapi/nf-heapapi-heapalloc) 或 [HeapRealloc](https://learn.microsoft.com/windows/desktop/api/heapapi/nf-heapapi-heaprealloc) 函数分配的内存块何时从 Win32 堆释放。实现后，必须通过调用 [XMemSetWin32HeapTrackingHooks](/reference/system/xmem/functions/xmemsetwin32heaptrackinghooks) 来注册所实现的回调函数。然后，在调用 `HeapFree` 从 Win32 堆释放已分配的内存块之后，将调用该回调函数。有关实现此回调函数的更多信息，请参阅 `XMemSetWin32HeapTrackingHooks` 的[备注](/reference/system/xmem/functions/xmemsetwin32heaptrackinghooks#remarksSection)部分。

<a id="requirementsSection" />

## 要求

**标头：** xmem.h

**库：** xmem.lib

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

<a id="seealsoSection" />

## 请参阅

[诊断与内存跟踪](/build/console-features/memory/system-memory-diagnostics)\
[XMemCreateWin32Heap](/reference/system/xmem/functions/xmemcreatewin32heap)\
[PHEAP\_TRACK\_ALLOC\_ROUTINE](/reference/system/xmem/functions/pheap_track_alloc_routine)\
[PHEAP\_TRACK\_REALLOC\_ROUTINE](/reference/system/xmem/functions/pheap_track_realloc_routine)\
[XMem](/reference/system/xmem/xmem_members)


## Related topics

- [PHEAP_TRACK_ALLOC_ROUTINE callback](/zh-CN/reference/system/xmem/functions/pheap_track_alloc_routine.md)
- [PHEAP_TRACK_REALLOC_ROUTINE callback](/zh-CN/reference/system/xmem/functions/pheap_track_realloc_routine.md)
- [XMemSetWin32HeapTrackingHooks](/zh-CN/reference/system/xmem/functions/xmemsetwin32heaptrackinghooks.md)
- [XMEMFREE_ROUTINE callback](/zh-CN/reference/system/xmem/functions/xmemfree_routine.md)
- [XMEMALLOC_ROUTINE callback](/zh-CN/reference/system/xmem/functions/xmemalloc_routine.md)