pub type PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR = unsafe extern "system" fn(_physical_device: PhysicalDevice, _surface: SurfaceKHR, _surface_capabilities: *mut SurfaceCapabilitiesKHR) -> Result;pub type PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR = unsafe extern "system" fn(_physical_device: PhysicalDevice, _surface: SurfaceKHR, _surface_capabilities: *mut SurfaceCapabilitiesKHR) -> Result;