PFN_vkDeviceMemoryReportCallbackEXT

The prototype for the VkDeviceDeviceMemoryReportCreateInfoEXT::pfnUserCallback function implemented by the application is:

typedef void (VKAPI_PTR *PFN_vkDeviceMemoryReportCallbackEXT)(const VkDeviceMemoryReportCallbackDataEXT*  pCallbackData, void*                                       pUserData);

pub type PFN_vkDeviceMemoryReportCallbackEXT = Option<
    unsafe extern "system" fn(

    ) -> std::ffi::c_void
>;

• pCallbackData contains all the callback related data in the VkDeviceMemoryReportCallbackDataEXT structure.
• pUserData is the application-defined user data pointer, equal to the value of VkDeviceDeviceMemoryReportCreateInfoEXT::pUserData specified when the VkDevice object was created.

The callback must not make calls to any Vulkan commands.