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 Accessing Vars in Group Passed by Address 
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Brad Kunke
#1 / 8
 Accessing Vars in Group Passed by Address

Clarion DOS 3.x

Is there a way for a Procedure to access the individual variables in a
Group structure that was passed to it by address?

For instance a Procedure defined:
MYPROC   PROCEDURE(*GROUP)

and a group defined as:
LISTVARS   GROUP
    NDX            LONG
                     END

Then the call to MYPROC(LISTVARS)

MYPROC(LVARS)
        CODE
        LVARS:NDX = 1
        RETURN

LVARS:NDX generates the error: Unknown Label

Thanks,
Brad Kunkel



Mon, 07 Jul 2003 03:21:50 GMT  
Jim Kat
#2 / 8
 Accessing Vars in Group Passed by Address
Hi Brad,
You should be using dot notation here, not the old prefix/colon i.e.

LVars.NDX

HTH

Jim

Quote:

> Clarion DOS 3.x

> Is there a way for a Procedure to access the individual variables in a
> Group structure that was passed to it by address?

> For instance a Procedure defined:
> MYPROC   PROCEDURE(*GROUP)

> and a group defined as:
> LISTVARS   GROUP
>     NDX            LONG
>                      END

> Then the call to MYPROC(LISTVARS)

> MYPROC(LVARS)
>         CODE
>         LVARS:NDX = 1
>         RETURN

> LVARS:NDX generates the error: Unknown Label

> Thanks,
> Brad Kunkel

--
! Jim Katz
! Certified Clarion Developer
! Author: ABC DLL Toolkit  Maintainer: DEF for ABC,DET for Legacy
! Web Site: http://www.iag.net/~jimkatz/
! Company:  iTradeZone,Inc.
! Using Clarion for Windows - Always looking for the simpler solution.


Mon, 07 Jul 2003 05:06:41 GMT  
Brad Kunke
#3 / 8
 Accessing Vars in Group Passed by Address
Tried that but it doesn't work.  It interprets the period as an
end-of-control structure and gives the error Unknown Procedure Label on the
NDX.
Thanks,
Brad
Quote:

> Hi Brad,
> You should be using dot notation here, not the old prefix/colon i.e.

> LVars.NDX

> HTH

> Jim


> > Clarion DOS 3.x

> > Is there a way for a Procedure to access the individual variables in a
> > Group structure that was passed to it by address?

> > For instance a Procedure defined:
> > MYPROC   PROCEDURE(*GROUP)

> > and a group defined as:
> > LISTVARS   GROUP
> >     NDX            LONG
> >                      END

> > Then the call to MYPROC(LISTVARS)

> > MYPROC(LVARS)
> >         CODE
> >         LVARS:NDX = 1
> >         RETURN

> > LVARS:NDX generates the error: Unknown Label

> > Thanks,
> > Brad Kunkel

> --
> ! Jim Katz
> ! Certified Clarion Developer
> ! Author: ABC DLL Toolkit  Maintainer: DEF for ABC,DET for Legacy
> ! Web Site: http://www.iag.net/~jimkatz/
> ! Company:  iTradeZone,Inc.
> ! Using Clarion for Windows - Always looking for the simpler solution.



Mon, 07 Jul 2003 09:30:40 GMT  
Jim Kat
#4 / 8
 Accessing Vars in Group Passed by Address
Hi Brad,
Sorry about that, I just re-read your post and realized you're in DOS 3.x.
Can't help you there...

Regards,

Jim

Quote:

> Tried that but it doesn't work.  It interprets the period as an
> end-of-control structure and gives the error Unknown Procedure Label on the
> NDX.
> Thanks,
> Brad


> > Hi Brad,
> > You should be using dot notation here, not the old prefix/colon i.e.

> > LVars.NDX

> > HTH

> > Jim


> > > Clarion DOS 3.x

> > > Is there a way for a Procedure to access the individual variables in a
> > > Group structure that was passed to it by address?

> > > For instance a Procedure defined:
> > > MYPROC   PROCEDURE(*GROUP)

> > > and a group defined as:
> > > LISTVARS   GROUP
> > >     NDX            LONG
> > >                      END

> > > Then the call to MYPROC(LISTVARS)

> > > MYPROC(LVARS)
> > >         CODE
> > >         LVARS:NDX = 1
> > >         RETURN

> > > LVARS:NDX generates the error: Unknown Label

> > > Thanks,
> > > Brad Kunkel

> > --
> > ! Jim Katz
> > ! Certified Clarion Developer
> > ! Author: ABC DLL Toolkit  Maintainer: DEF for ABC,DET for Legacy
> > ! Web Site: http://www.iag.net/~jimkatz/
> > ! Company:  iTradeZone,Inc.
> > ! Using Clarion for Windows - Always looking for the simpler solution.

--
! Jim Katz
! Certified Clarion Developer
! Author: ABC DLL Toolkit  Maintainer: DEF for ABC,DET for Legacy
! Web Site: http://www.iag.net/~jimkatz/
! Company:  iTradeZone,Inc.
! Using Clarion for Windows - Always looking for the simpler solution.


Mon, 07 Jul 2003 21:21:13 GMT  
Maarte
#5 / 8
 Accessing Vars in Group Passed by Address
Brad,

Quote:
> Is there a way for a Procedure to access the individual variables in a
> Group structure that was passed to it by address?

Don't know the correct way (if there is one)
but you may want to try one of these:
Quote:
> MYPROC(LVARS)
LocalLong    LONG
>         CODE

           LocalLong = 1
           LVARS[1:4] = LocalLong
Quote:
>         RETURN
or
> MYPROC(LVARS)

LocalGrp   GROUP        !Exactly like passed group
NDX             LONG
                   END
Quote:
>         CODE

           LocalGrp = LVARS
           NDX = 1
           LVARS = LocalGrp

Quote:
>         RETURN

--
Best regards,
Maarten
CDD3.1, C5EEb - ABC & C5.5EEgold
Certainly Clarion Developer


Tue, 08 Jul 2003 03:31:41 GMT  
Brad Kunke
#6 / 8
 Accessing Vars in Group Passed by Address
Clarion 3.x DOS

Maarten,

The second way works.  Do you know of a way to access individual elements in
a passed Queue?  How about a passed Screen structure?

Thanks,
Brad

Quote:

> Brad,

> > Is there a way for a Procedure to access the individual variables in a
> > Group structure that was passed to it by address?

> Don't know the correct way (if there is one)
> but you may want to try one of these:
> > MYPROC(LVARS)
> LocalLong    LONG
> >         CODE
>            LocalLong = 1
>            LVARS[1:4] = LocalLong
> >         RETURN
> or
> > MYPROC(LVARS)
> LocalGrp   GROUP        !Exactly like passed group
> NDX             LONG
>                    END
> >         CODE
>            LocalGrp = LVARS
>            NDX = 1
>            LVARS = LocalGrp
> >         RETURN

> --
> Best regards,
> Maarten
> CDD3.1, C5EEb - ABC & C5.5EEgold
> Certainly Clarion Developer



Tue, 08 Jul 2003 08:54:36 GMT  
Peter Gysege
#7 / 8
 Accessing Vars in Group Passed by Address
You need to define the group as a global TYPEd group:

Global Data:
ListVarsType   GROUP,TYPE
NDX                      LONG
                          END

In the calling procedure:

ListVars     ListVarsType
  CODE
  MYPROC(ListVars)

Prototype:
MYPROC   PROCEDURE(ListVarsType ListVars)

Then you can access ListVars.NDX

Peter Gysegem
Beaver Creek Software

Quote:

>Clarion DOS 3.x

>Is there a way for a Procedure to access the individual variables in a
>Group structure that was passed to it by address?

>For instance a Procedure defined:
>MYPROC   PROCEDURE(*GROUP)

>and a group defined as:
>LISTVARS   GROUP
>    NDX            LONG
>                     END

>Then the call to MYPROC(LISTVARS)

>MYPROC(LVARS)
>        CODE
>        LVARS:NDX = 1
>        RETURN

>LVARS:NDX generates the error: Unknown Label

>Thanks,
>Brad Kunkel



Wed, 09 Jul 2003 02:01:58 GMT  
Brad Kunke
#8 / 8
 Accessing Vars in Group Passed by Address
Clarion DOS 3 doesn't seem to recognize TYPEs.  Is that only for Windows?
Thanks,
Brad Kunkel
Quote:

> You need to define the group as a global TYPEd group:

> Global Data:
> ListVarsType   GROUP,TYPE
> NDX                      LONG
>                           END

> In the calling procedure:

> ListVars     ListVarsType
>   CODE
>   MYPROC(ListVars)

> Prototype:
> MYPROC   PROCEDURE(ListVarsType ListVars)

> Then you can access ListVars.NDX

> Peter Gysegem
> Beaver Creek Software


> >Clarion DOS 3.x

> >Is there a way for a Procedure to access the individual variables in a
> >Group structure that was passed to it by address?

> >For instance a Procedure defined:
> >MYPROC   PROCEDURE(*GROUP)

> >and a group defined as:
> >LISTVARS   GROUP
> >    NDX            LONG
> >                     END

> >Then the call to MYPROC(LISTVARS)

> >MYPROC(LVARS)
> >        CODE
> >        LVARS:NDX = 1
> >        RETURN

> >LVARS:NDX generates the error: Unknown Label

> >Thanks,
> >Brad Kunkel



Wed, 09 Jul 2003 13:08:50 GMT  
 
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