# VkMemoryHostPointerPropertiesEXT(3) Manual Page

## Name

VkMemoryHostPointerPropertiesEXT - Properties of external memory host pointer

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## C Specification

The `VkMemoryHostPointerPropertiesEXT` structure is defined as:

    // Provided by VK_EXT_external_memory_host
    typedef struct VkMemoryHostPointerPropertiesEXT {
        VkStructureType    sType;
        void*              pNext;
        uint32_t           memoryTypeBits;
    } VkMemoryHostPointerPropertiesEXT;

## Members

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

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

- `memoryTypeBits` is a bitmask containing one bit set for every memory type which the specified host pointer can be imported as.

## Description

The value returned by `memoryTypeBits` should only include bits that identify memory types which are host visible. Implementations may include bits that identify memory types which are not host visible. Behavior for imported pointers of such types is defined by VkImportMemoryHostPointerInfoEXT.

Valid Usage (Implicit)

- VUID-VkMemoryHostPointerPropertiesEXT-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_MEMORY_HOST_POINTER_PROPERTIES_EXT`

- VUID-VkMemoryHostPointerPropertiesEXT-pNext-pNext
  `pNext` must be `NULL`

## See Also

VK_EXT_external_memory_host, VkStructureType, vkGetMemoryHostPointerPropertiesEXT

## 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 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0