C Specification

The type id<MTLCommandQueue> is defined in Apple’s Metal framework, but to remove an unnecessary compile time dependency, an incomplete type definition of MTLCommandQueue_id is provided in the Vulkan headers:

// Provided by VK_EXT_metal_objects
#ifdef __OBJC__
@protocol MTLCommandQueue;
typedef __unsafe_unretained id<MTLCommandQueue> MTLCommandQueue_id;
typedef void* MTLCommandQueue_id;

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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