# VK_MAX_EXTENSION_NAME_SIZE(3) Manual Page

## Name

VK_MAX_EXTENSION_NAME_SIZE - Maximum length of a layer of extension name string

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## C Specification

`VK_MAX_EXTENSION_NAME_SIZE` is the length in `char` values of an array containing a layer or extension name string, as returned in VkLayerProperties::`layerName`, VkExtensionProperties::`extensionName`, and other queries.

    #define VK_MAX_EXTENSION_NAME_SIZE        256U

## See Also

VK_VERSION_1_0

## 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 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0