# VkExportSemaphoreCreateInfo(3) Manual Page

## Name

VkExportSemaphoreCreateInfo - Structure specifying handle types that can be exported from a semaphore

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## C Specification

To create a semaphore whose payload can be exported to external handles, add a VkExportSemaphoreCreateInfo structure to the `pNext` chain of the VkSemaphoreCreateInfo structure. The `VkExportSemaphoreCreateInfo` structure is defined as:

    // Provided by VK_VERSION_1_1
    typedef struct VkExportSemaphoreCreateInfo {
        VkStructureType                       sType;
        const void*                           pNext;
        VkExternalSemaphoreHandleTypeFlags    handleTypes;
    } VkExportSemaphoreCreateInfo;

or the equivalent

    // Provided by VK_KHR_external_semaphore
    typedef VkExportSemaphoreCreateInfo VkExportSemaphoreCreateInfoKHR;

## Members

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

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

- `handleTypes` is a bitmask of VkExternalSemaphoreHandleTypeFlagBits specifying one or more semaphore handle types the application can export from the resulting semaphore. The application can request multiple handle types for the same semaphore.

## Description

Valid Usage

- VUID-VkExportSemaphoreCreateInfo-handleTypes-01124
  The bits in `handleTypes` must be supported and compatible, as reported by VkExternalSemaphoreProperties

Valid Usage (Implicit)

- VUID-VkExportSemaphoreCreateInfo-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_EXPORT_SEMAPHORE_CREATE_INFO`

- VUID-VkExportSemaphoreCreateInfo-handleTypes-parameter
  `handleTypes` must be a valid combination of VkExternalSemaphoreHandleTypeFlagBits values

## See Also

VK_VERSION_1_1, VkExternalSemaphoreHandleTypeFlags, VkStructureType

## 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