pub type PFN_vkDisplayPowerControlEXT = unsafe extern "system" fn(_device: Device, _display: DisplayKHR, _display_power_info: *const DisplayPowerInfoEXT) -> Result;pub type PFN_vkDisplayPowerControlEXT = unsafe extern "system" fn(_device: Device, _display: DisplayKHR, _display_power_info: *const DisplayPowerInfoEXT) -> Result;