Event.keyCode
var keyCode: KeyCode;
Description

The raw key code for keyboard events.

Used in EventType.KeyDown and EventType.KeyUp events; this returns KeyCode value that matches the physical keyboard key. Use this for handling cursor keys, function keys etc.

See Also: Event.character.
	// Detects keys pressed and prints their keycode
	function OnGUI() {
		var e : Event = Event.current;
		if (e.isKey) {
			Debug.Log("Detected key code: " + e.keyCode);
		}
	}