C Specification

To retrieve the handle corresponding to a device memory object created with VkExportMemoryAllocateInfoNV::handleTypes set to include VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32_BIT_NV or VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32_KMT_BIT_NV, call:

// Provided by VK_NV_external_memory_win32
VkResult vkGetMemoryWin32HandleNV(
    VkDevice                                    device,
    VkDeviceMemory                              memory,
    VkExternalMemoryHandleTypeFlagsNV           handleType,
    HANDLE*                                     pHandle);


  • device is the logical device that owns the memory.

  • memory is the VkDeviceMemory object.

  • handleType is a bitmask of VkExternalMemoryHandleTypeFlagBitsNV containing a single bit specifying the type of handle requested.

  • handle is a pointer to a Windows HANDLE in which the handle is returned.


Valid Usage
Valid Usage (Implicit)
  • device must be a valid VkDevice handle

  • memory must be a valid VkDeviceMemory handle

  • handleType must be a valid combination of VkExternalMemoryHandleTypeFlagBitsNV values

  • handleType must not be 0

  • pHandle must be a valid pointer to a HANDLE value

  • memory must have been created, allocated, or retrieved from device

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 (c) 2014-2020 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0