Hi Luigi,

I'm sorry for my wrong reply.

1) You must create one public header file
2) into all your other header files add new row:
#INCLUDE "public.h"


MartinJ

>Hi Martin
>
>I have already tried but it does not work
>
>my alfa.h is
>

>#DEFINE compila .T.
>

>
>
>In main program I have insert
>
>

>_include= 'c:\alfa.h'
>

>
>in a form button.click
>
>

>#IFDEF compila
>   WAIT WINDOW "MYDEFINE exists"
>#ELSE
>   WAIT WINDOW "MYDEFINE does not exist"
>#ENDIF
>

>
>But the method return "MYDEFINE does not exist"
>
>where it it wrong?
>
>Luigi