C Specification
The type IOSurfaceRef is defined in Apple’s CoreGraphics framework, but to remove an unnecessary compile time dependency, an incomplete type definition of IOSurfaceRef is provided in the Vulkan headers:
// Provided by VK_EXT_metal_objects
typedef struct __IOSurface* IOSurfaceRef;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.