# VkExternalSemaphoreProperties(3) Manual Page

## Name

VkExternalSemaphoreProperties - Structure describing supported external semaphore handle features

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## C Specification

The `VkExternalSemaphoreProperties` structure is defined as:

    // Provided by VK_VERSION_1_1
    typedef struct VkExternalSemaphoreProperties {
        VkStructureType                       sType;
        void*                                 pNext;
        VkExternalSemaphoreHandleTypeFlags    exportFromImportedHandleTypes;
        VkExternalSemaphoreHandleTypeFlags    compatibleHandleTypes;
        VkExternalSemaphoreFeatureFlags       externalSemaphoreFeatures;
    } VkExternalSemaphoreProperties;

or the equivalent

    // Provided by VK_KHR_external_semaphore_capabilities
    typedef VkExternalSemaphoreProperties VkExternalSemaphorePropertiesKHR;

## Members

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

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

- `exportFromImportedHandleTypes` is a bitmask of VkExternalSemaphoreHandleTypeFlagBits specifying which types of imported handle `handleType` can be exported from.

- `compatibleHandleTypes` is a bitmask of VkExternalSemaphoreHandleTypeFlagBits specifying handle types which can be specified at the same time as `handleType` when creating a semaphore.

- `externalSemaphoreFeatures` is a bitmask of VkExternalSemaphoreFeatureFlagBits describing the features of `handleType`.

## Description

If `handleType` is not supported by the implementation, then VkExternalSemaphoreProperties::`externalSemaphoreFeatures` will be zero.

Valid Usage (Implicit)

- VUID-VkExternalSemaphoreProperties-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_EXTERNAL_SEMAPHORE_PROPERTIES`

- VUID-VkExternalSemaphoreProperties-pNext-pNext
  `pNext` must be `NULL`

## See Also

VK_VERSION_1_1, VkExternalSemaphoreFeatureFlags, VkExternalSemaphoreHandleTypeFlags, VkStructureType, vkGetPhysicalDeviceExternalSemaphoreProperties, vkGetPhysicalDeviceExternalSemaphorePropertiesKHR

## 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