# PFN_vkInternalAllocationNotification(3) Manual Page

## Name

PFN_vkInternalAllocationNotification - Application-defined memory allocation notification function

Loading… please wait.

## C Specification

The type of `pfnInternalAllocation` is:

    // Provided by VK_VERSION_1_0
    typedef void (VKAPI_PTR *PFN_vkInternalAllocationNotification)(
        void*                                       pUserData,
        size_t                                      size,
        VkInternalAllocationType                    allocationType,
        VkSystemAllocationScope                     allocationScope);

## Parameters

- `pUserData` is the value specified for VkAllocationCallbacks::`pUserData` in the allocator specified by the application.

- `size` is the requested size of an allocation.

- `allocationType` is a VkInternalAllocationType value specifying the requested type of an allocation.

- `allocationScope` is a VkSystemAllocationScope value specifying the allocation scope of the lifetime of the allocation, as described here.

## Description

This is a purely informational callback.

## See Also

VK_VERSION_1_0, VkAllocationCallbacks, VkInternalAllocationType, VkSystemAllocationScope

## Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0