C Specification

Information about tools providing debugging, profiling, or similar services, active for a given physical device, can be obtained by calling:

// Provided by VK_EXT_tooling_info
VkResult vkGetPhysicalDeviceToolPropertiesEXT(
    VkPhysicalDevice                            physicalDevice,
    uint32_t*                                   pToolCount,
    VkPhysicalDeviceToolPropertiesEXT*          pToolProperties);


  • physicalDevice is the handle to the physical device to query for active tools.

  • pToolCount is a pointer to an integer describing the number of tools active on physicalDevice.

  • pToolProperties is either NULL or a pointer to an array of VkPhysicalDeviceToolPropertiesEXT structures.


If pToolProperties is NULL, then the number of tools currently active on physicalDevice is returned in pToolCount. Otherwise, pToolCount must point to a variable set by the user to the number of elements in the pToolProperties array, and on return the variable is overwritten with the number of structures actually written to pToolProperties. If pToolCount is less than the number of currently active tools, at most pToolCount structures will be written.

The count and properties of active tools may change in response to events outside the scope of the specification. An application should assume these properties might change at any given time.

Valid Usage (Implicit)
  • VUID-vkGetPhysicalDeviceToolPropertiesEXT-physicalDevice-parameter
    physicalDevice must be a valid VkPhysicalDevice handle

  • VUID-vkGetPhysicalDeviceToolPropertiesEXT-pToolCount-parameter
    pToolCount must be a valid pointer to a uint32_t value

  • VUID-vkGetPhysicalDeviceToolPropertiesEXT-pToolProperties-parameter
    If the value referenced by pToolCount is not 0, and pToolProperties is not NULL, pToolProperties must be a valid pointer to an array of pToolCount VkPhysicalDeviceToolPropertiesEXT structures

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 2014-2021 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0