vkRegisterDeviceEventEXT(3)

# vkRegisterDeviceEventEXT(3) Manual Page

## Name

vkRegisterDeviceEventEXT - Signal a fence when a device event occurs

## C Specification

To create a fence that will be signaled when an event occurs on a device, call:

    // Provided by VK_EXT_display_control
    VkResult vkRegisterDeviceEventEXT(
        VkDevice                                    device,
        const VkDeviceEventInfoEXT*                 pDeviceEventInfo,
        const VkAllocationCallbacks*                pAllocator,
        VkFence*                                    pFence);

## Parameters

- `device` is a logical device on which the event may occur.

- `pDeviceEventInfo` is a pointer to a VkDeviceEventInfoEXT structure describing the event of interest to the application.

- `pAllocator` controls host memory allocation as described in the Memory Allocation chapter.

- `pFence` is a pointer to a handle in which the resulting fence object is returned.

## Description

Valid Usage (Implicit)

- VUID-vkRegisterDeviceEventEXT-device-parameter
  `device` must be a valid VkDevice handle

- VUID-vkRegisterDeviceEventEXT-pDeviceEventInfo-parameter
  `pDeviceEventInfo` must be a valid pointer to a valid VkDeviceEventInfoEXT structure

- VUID-vkRegisterDeviceEventEXT-pAllocator-parameter
  If `pAllocator` is not `NULL`, `pAllocator` must be a valid pointer to a valid VkAllocationCallbacks structure

- VUID-vkRegisterDeviceEventEXT-pFence-parameter
  `pFence` must be a valid pointer to a VkFence handle

Return Codes

On success, this command returns

  - VK_SUCCESS

On failure, this command returns

  - VK_ERROR_OUT_OF_HOST_MEMORY

  - VK_ERROR_UNKNOWN

  - VK_ERROR_VALIDATION_FAILED

## See Also

VK_EXT_display_control, VkAllocationCallbacks, VkDevice, VkDeviceEventInfoEXT, VkFence

## 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