Type Definition openxr_sys::pfn::SubmitDebugUtilsMessageEXT

type SubmitDebugUtilsMessageEXT = unsafe extern "system" fn(instance: Instance, message_severity: DebugUtilsMessageSeverityFlagsEXT, message_types: DebugUtilsMessageTypeFlagsEXT, callback_data: *const DebugUtilsMessengerCallbackDataEXT) -> Result;

From XR_EXT_debug_utils