# vkDestroyQueryPool(3) Manual Page

## Name

vkDestroyQueryPool - Destroy a query pool object

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## C Specification

To destroy a query pool, call:

    // Provided by VK_VERSION_1_0
    void vkDestroyQueryPool(
        VkDevice                                    device,
        VkQueryPool                                 queryPool,
        const VkAllocationCallbacks*                pAllocator);

## Parameters

- `device` is the logical device that destroys the query pool.

- `queryPool` is the query pool to destroy.

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

## Description

Valid Usage

- VUID-vkDestroyQueryPool-queryPool-00793
  All submitted commands that refer to `queryPool` must have completed execution

- VUID-vkDestroyQueryPool-queryPool-00794
  If `VkAllocationCallbacks` were provided when `queryPool` was created, a compatible set of callbacks must be provided here

- VUID-vkDestroyQueryPool-queryPool-00795
  If no `VkAllocationCallbacks` were provided when `queryPool` was created, `pAllocator` must be `NULL`

Note | Applications can verify that `queryPool` can be destroyed by checking that `vkGetQueryPoolResults`() without the `VK_QUERY_RESULT_PARTIAL_BIT` flag returns `VK_SUCCESS` for all queries that are used in command buffers submitted for execution.

Valid Usage (Implicit)

- VUID-vkDestroyQueryPool-device-parameter
  `device` must be a valid VkDevice handle

- VUID-vkDestroyQueryPool-queryPool-parameter
  If `queryPool` is not VK_NULL_HANDLE, `queryPool` must be a valid VkQueryPool handle

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

- VUID-vkDestroyQueryPool-queryPool-parent
  If `queryPool` is a valid handle, it must have been created, allocated, or retrieved from `device`

Host Synchronization

- Host access to `queryPool` must be externally synchronized

## See Also

VK_VERSION_1_0, VkAllocationCallbacks, VkDevice, VkQueryPool

## 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