VkImportMetalSharedEventInfoEXT

To import a Metal id<MTLSharedEvent> object to underlie a VkSemaphore or VkEvent object, include a VkImportMetalSharedEventInfoEXT structure in the pNext chain of the VkSemaphoreCreateInfo or VkEventCreateInfo structure in a vkCreateSemaphore or vkCreateEvent command, respectively.

The VkImportMetalSharedEventInfoEXT structure is defined as:

typedef struct VkImportMetalSharedEventInfoEXT {
    VkStructureType sType;
    const void* pNext;
    MTLSharedEvent_id mtlSharedEvent;
} VkImportMetalSharedEventInfoEXT;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• mtlSharedEvent is the Metal id<MTLSharedEvent> object that is to underlie the VkSemaphore or VkEvent.

If the pNext chain of the VkSemaphoreCreateInfo structure includes both VkImportMetalSharedEventInfoEXT and VkSemaphoreTypeCreateInfo, the signaledValue property of the imported id<MTLSharedEvent> object will be set to VkSemaphoreTypeCreateInfo::initialValue.