# vkDestroyDebugUtilsMessengerEXT(3) Manual Page

## Name

vkDestroyDebugUtilsMessengerEXT - Destroy a debug messenger object

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## C Specification

To destroy a `VkDebugUtilsMessengerEXT` object, call:

    // Provided by VK_EXT_debug_utils
    void vkDestroyDebugUtilsMessengerEXT(
        VkInstance                                  instance,
        VkDebugUtilsMessengerEXT                    messenger,
        const VkAllocationCallbacks*                pAllocator);

## Parameters

- `instance` is the instance where the callback was created.

- `messenger` is the VkDebugUtilsMessengerEXT object to destroy. `messenger` is an externally synchronized object and must not be used on more than one thread at a time. This means that `vkDestroyDebugUtilsMessengerEXT` must not be called when a callback is active.

- `pAllocator` controls host memory allocation as described in the Memory Allocation chapter.

## Description

Valid Usage

- VUID-vkDestroyDebugUtilsMessengerEXT-messenger-01915
  If `VkAllocationCallbacks` were provided when `messenger` was created, a compatible set of callbacks must be provided here

- VUID-vkDestroyDebugUtilsMessengerEXT-messenger-01916
  If no `VkAllocationCallbacks` were provided when `messenger` was created, `pAllocator` must be `NULL`

Valid Usage (Implicit)

- VUID-vkDestroyDebugUtilsMessengerEXT-instance-parameter
  `instance` must be a valid VkInstance handle

- VUID-vkDestroyDebugUtilsMessengerEXT-messenger-parameter
  If `messenger` is not VK_NULL_HANDLE, `messenger` must be a valid VkDebugUtilsMessengerEXT handle

- VUID-vkDestroyDebugUtilsMessengerEXT-pAllocator-parameter
  If `pAllocator` is not `NULL`, `pAllocator` must be a valid pointer to a valid VkAllocationCallbacks structure

- VUID-vkDestroyDebugUtilsMessengerEXT-messenger-parent
  If `messenger` is a valid handle, it must have been created, allocated, or retrieved from `instance`

Host Synchronization

- Host access to `messenger` must be externally synchronized

The application must ensure that vkDestroyDebugUtilsMessengerEXT is not executed in parallel with any Vulkan command that is also called with `instance` or child of `instance` as the dispatchable argument.

## See Also

VK_EXT_debug_utils, VkAllocationCallbacks, VkDebugUtilsMessengerEXT, VkInstance

## 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