VkExternalSemaphoreFeatureFlagBits(3)

# VkExternalSemaphoreFeatureFlagBits(3) Manual Page

## Name

VkExternalSemaphoreFeatureFlagBits - Bitfield describing features of an external semaphore handle type

Loading… please wait.

## C Specification

Bits which may be set in VkExternalSemaphoreProperties::`externalSemaphoreFeatures`, specifying the features of an external semaphore handle type, are:

    // Provided by VK_VERSION_1_1
    typedef enum VkExternalSemaphoreFeatureFlagBits {
        VK_EXTERNAL_SEMAPHORE_FEATURE_EXPORTABLE_BIT = 0x00000001,
        VK_EXTERNAL_SEMAPHORE_FEATURE_IMPORTABLE_BIT = 0x00000002,
      // Provided by VK_KHR_external_semaphore_capabilities
        VK_EXTERNAL_SEMAPHORE_FEATURE_EXPORTABLE_BIT_KHR = VK_EXTERNAL_SEMAPHORE_FEATURE_EXPORTABLE_BIT,
      // Provided by VK_KHR_external_semaphore_capabilities
        VK_EXTERNAL_SEMAPHORE_FEATURE_IMPORTABLE_BIT_KHR = VK_EXTERNAL_SEMAPHORE_FEATURE_IMPORTABLE_BIT,
    } VkExternalSemaphoreFeatureFlagBits;

    // Provided by VK_KHR_external_semaphore_capabilities
    // Equivalent to VkExternalSemaphoreFeatureFlagBits
    typedef VkExternalSemaphoreFeatureFlagBits VkExternalSemaphoreFeatureFlagBitsKHR;

## Description

- VK_EXTERNAL_SEMAPHORE_FEATURE_EXPORTABLE_BIT specifies that handles of this type can be exported from Vulkan semaphore objects.

- VK_EXTERNAL_SEMAPHORE_FEATURE_IMPORTABLE_BIT specifies that handles of this type can be imported as Vulkan semaphore objects.

## See Also

VK_KHR_external_semaphore_capabilities, VK_VERSION_1_1, VkExternalSemaphoreFeatureFlags

## 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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0