C Specification

To export the Metal MTLCommandQueue object underlying a VkQueue object, include a VkExportMetalCommandQueueInfoEXT structure in the pNext chain of the pMetalObjectsInfo parameter of a vkExportMetalObjectsEXT call.

The VkExportMetalCommandQueueInfoEXT structure is defined as:

// Provided by VK_EXT_metal_objects
typedef struct VkExportMetalCommandQueueInfoEXT {
    VkStructureType       sType;
    const void*           pNext;
    VkQueue               queue;
    MTLCommandQueue_id    mtlCommandQueue;
} VkExportMetalCommandQueueInfoEXT;


  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • queue is a VkQueue.

  • mtlCommandQueue is the Metal id<MTLCommandQueue> object underlying the VkQueue object in queue. The implementation will return the MTLCommandQueue in this member, or it will return NULL if no MTLCommandQueue could be found underlying the VkQueue object.


Valid Usage (Implicit)
  • VUID-VkExportMetalCommandQueueInfoEXT-sType-sType

  • VUID-VkExportMetalCommandQueueInfoEXT-queue-parameter
    queue must be a valid VkQueue handle

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.

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