Re: Prompt Override Program

["Simon Coulter" <shc@xxxxxxxxxxxxxxxxx>]

Hello Jim,

You wrote:
>I have a situation where I wanted to get some default values from a
>configuration data area and have them appear as the defaults for parms on a
>command prompt that is used on a menu option to start an interface system.
>The IBM manual shows that it can be done using a prompt override program.
>I followed the example and got the values to display on the prompt for the
>parms, but if I just press ENTER (without keying anything into the parm
>fields) nothing gets passed to the CPP.  I'm using the ?< selective
>prompting character, which according to the manual says "the parameter is
>displayed and is input-capable, but the command default is sent to the CPP
>unless the value displayed on the parameter is changed."

>Has anyone done this before, and am I missing something?

I use POPs frequently.  You are missing the point that the command DEFAULT
is passed through to the CPP, NOT the value your POP displays.  In your case
I suspect the PARM has a default of blanks and that is what your CPP
receives.  Since POPs are intended to be used on change (CHGxxxx) commands
the normal default is *SAME.  Your CPP checks for *SAME and either does
nothing or repeats the process performed by the POP and fetches the
appropriate value from the data area.

You could use the ?? selective prompting characters but I don't think that
is appropriate.

Regards,
Simon Coulter.

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