C Specification

To create an event, call:

// Provided by VK_VERSION_1_0
VkResult vkCreateEvent(
    VkDevice                                    device,
    const VkEventCreateInfo*                    pCreateInfo,
    const VkAllocationCallbacks*                pAllocator,
    VkEvent*                                    pEvent);


  • device is the logical device that creates the event.

  • pCreateInfo is a pointer to a VkEventCreateInfo structure containing information about how the event is to be created.

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

  • pEvent is a pointer to a handle in which the resulting event object is returned.


When created, the event object is in the unsignaled state.

If VkPhysicalDeviceVulkanSC10Properties::deviceNoDynamicHostAllocations is VK_TRUE, vkCreateEvent must not return VK_ERROR_OUT_OF_HOST_MEMORY.

Valid Usage
  • VUID-vkCreateEvent-device-05068
    The number of events currently allocated from device plus 1 must be less than or equal to the total number of events requested via VkDeviceObjectReservationCreateInfo::eventRequestCount specified when device was created

Valid Usage (Implicit)
  • VUID-vkCreateEvent-device-parameter
    device must be a valid VkDevice handle

  • VUID-vkCreateEvent-pCreateInfo-parameter
    pCreateInfo must be a valid pointer to a valid VkEventCreateInfo structure

  • VUID-vkCreateEvent-pAllocator-null
    pAllocator must be NULL

  • VUID-vkCreateEvent-pEvent-parameter
    pEvent must be a valid pointer to a VkEvent handle

Return Codes
On success, this command returns

On failure, this command returns


See Also

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 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0