functions.

#SingleInstance,force

c:=My_Function(2,2) ; this first call I put both arguments in

Msgbox,% c   ; this shows the value of c after it is returned from the function

c:=My_Function(2) ;This time I only added one of the arguments, so the function will use the default for the second value

Msgbox,% c ; this shows the value of c after it is returned from the function

return

My_Function(a,b:=10)  ; b is set up so that if you only pass one argument, b will default to 10
    {
        return a + b
    }

*^esc::ExitApp