Here are the changes:
Fixed IfMsgBox to be able to detect a timeout for a MsgBox that contains
only an OK button. [thanks Mats]
Added function VarSetCapacity(), which enlarges or shrinks a variable.
Added function DllCall(), which calls a function inside a DLL. [code by
Marcus Sonntag (Ultra)]
See http://www.autohotkey.com/docs/commands/DllCall.htm for details.
http://www.autohotkey.com/download/