Detect displays with a not very elegant AppleScript macro

detect-displays.applescript

tell application "System Preferences"
	activate
	reveal pane "com.apple.preference.displays"
end tell

delay 0.5

tell application "System Events"
	tell process "System Preferences"
		try --don't even consider not using a try block!
			key down option
			delay 0.2
			click button "Detect Displays" of window 1
			delay 0.2
			key up option
		on error --logging out is the only other way to clear these
			key up option
		end try
	end tell
end tell