How to get the active window's title with AutoHotKey?

Question

I wrote this short test code, but it didn't work. What am I doing wrong?

F12::
WinGetTitle, Title, A ;
MsgBox, "%Title%"

The displayed result was ""

Answer 1

I removed a ; and added return and this worked...

F12::
WinGetTitle, title, A
MsgBox, "%title%"
return