Error FiveWin/6 Cannot create window or control

[concentra]

I´m getting the error :
"Error FiveWin/6 Cannot create window or control"
Could anyone explains why can´t I do this ?
Sample code :


#INCLUDE "FIVEWIN.CH"

PROCEDURE MAIN()
oDLG_MAIN := TWINDOW():NEW(,,,,"Test")
ACTIVATE WINDOW oDLG_MAIN ON INIT( TEST2() )
RETURN NIL

FUNCTION TEST2()
LOCAL oDialog
DEFINE DIALOG oDialog TITLE "Test2"
DEFINE MESSAGE oMessage OF oDialog PROMPT "Test2 Footer"
ACTIVATE DIALOG oDialog
RETURN

[Enrico Maria Giordano]

Code: Select all

#INCLUDE "FIVEWIN.CH" 

PROCEDURE MAIN() 
LOCAL oDLG_MAIN := TWINDOW():NEW(,,,,"Test"), oMessage
ACTIVATE WINDOW oDLG_MAIN ON INIT( TEST2() ) 
RETURN

FUNCTION TEST2() 
LOCAL oDialog, oMessage
DEFINE DIALOG oDialog TITLE "Test2" 
//DEFINE MESSAGE oMessage OF oDialog PROMPT "Test2 Footer" 
ACTIVATE DIALOG oDialog ON INIT TEST3( oDialog )
RETURN NIL

FUNCTION TEST3( oDialog )

    LOCAL oMessage

    DEFINE MESSAGE oMessage OF oDialog PROMPT "Test2 Footer" 

    RETURN NIL

EMG

[concentra]

Code: Select all

#INCLUDE "FIVEWIN.CH" 

PROCEDURE MAIN() 
LOCAL oDLG_MAIN := TWINDOW():NEW(,,,,"Test"), oMessage
ACTIVATE WINDOW oDLG_MAIN ON INIT( TEST2() ) 
RETURN

FUNCTION TEST2() 
LOCAL oDialog, oMessage
DEFINE DIALOG oDialog TITLE "Test2" 
//DEFINE MESSAGE oMessage OF oDialog PROMPT "Test2 Footer" 
ACTIVATE DIALOG oDialog ON INIT TEST3( oDialog )
RETURN NIL

FUNCTION TEST3( oDialog )

    LOCAL oMessage

    DEFINE MESSAGE oMessage OF oDialog PROMPT "Test2 Footer" 

    RETURN NIL

EMG

Ok, it works.
But, why can´t I do the previous code ?
If I program a WINDOW other than a DIALOG, the code works OK, like:

Code: Select all

DEFINE WINDOW oDialog TITLE "Test2"
DEFINE MESSAGE oMessage OF oDialog PROMPT "Test2 Footer" 
ACTIVATE DIALOG oDialog ON INIT TEST3( oDialog )

Why can I do this with a WINDOW and not with a DIALOG ?
Isn´t a DIALOG a WINDOW sub-class ?
It can seems to be a stupid question, but, I am just triing to understand...

[Enrico Maria Giordano]

A WINDOW and a DIALOG are different things from the API point of view. Therefore you can't use a DIALOG exactly as it were a WINDOW.

EMG