pub type PFN_vkAcquireXlibDisplayEXT = unsafe extern "system" fn(_physical_device: PhysicalDevice, _dpy: *mut Display, _display: DisplayKHR) -> Result;pub type PFN_vkAcquireXlibDisplayEXT = unsafe extern "system" fn(_physical_device: PhysicalDevice, _dpy: *mut Display, _display: DisplayKHR) -> Result;