# VkReleaseSwapchainImagesInfoEXT(3) Manual Page

## Name

VkReleaseSwapchainImagesInfoEXT - Structure describing a list of swapchain image indices to be released

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## C Specification

The `VkReleaseSwapchainImagesInfoEXT` structure is defined as:

    // Provided by VK_EXT_swapchain_maintenance1
    typedef struct VkReleaseSwapchainImagesInfoEXT {
        VkStructureType    sType;
        const void*        pNext;
        VkSwapchainKHR     swapchain;
        uint32_t           imageIndexCount;
        const uint32_t*    pImageIndices;
    } VkReleaseSwapchainImagesInfoEXT;

## Members

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

- `swapchain` is a swapchain to which images are being released.

- `imageIndexCount` is the number of image indices to be released.

- `pImageIndices` is a pointer to an array of indices into the array of `swapchain`’s presentable images, with `imageIndexCount` entries.

## Description

Valid Usage

- VUID-VkReleaseSwapchainImagesInfoEXT-pImageIndices-07785
  Each element of `pImageIndices` must be the index of a presentable image acquired from the swapchain specified by `swapchain`

- VUID-VkReleaseSwapchainImagesInfoEXT-pImageIndices-07786
  All uses of presentable images identified by elements of `pImageIndices` must have completed execution

Valid Usage (Implicit)

- VUID-VkReleaseSwapchainImagesInfoEXT-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_RELEASE_SWAPCHAIN_IMAGES_INFO_EXT`

- VUID-VkReleaseSwapchainImagesInfoEXT-pNext-pNext
  `pNext` must be `NULL`

- VUID-VkReleaseSwapchainImagesInfoEXT-swapchain-parameter
  `swapchain` must be a valid VkSwapchainKHR handle

- VUID-VkReleaseSwapchainImagesInfoEXT-pImageIndices-parameter
  `pImageIndices` must be a valid pointer to an array of `imageIndexCount` `uint32_t` values

- VUID-VkReleaseSwapchainImagesInfoEXT-imageIndexCount-arraylength
  `imageIndexCount` must be greater than `0`

Host Synchronization

- Host access to `swapchain` must be externally synchronized

## See Also

VK_EXT_swapchain_maintenance1, VkStructureType, VkSwapchainKHR, vkReleaseSwapchainImagesEXT

## 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