Re: Indicator Coding Technique

[Jeff Young <cooljeff913@xxxxxxxxx>]

Richard,
  Use the INDARA keyword in the display file, and the INDDS keyword in your RPG 
program to specify a separate data structure or your indicators.
  The data structure will be 99 bytes long by default (99 indicators).
  Define each indicator that you use with a unique name (you *can* have the 
same indicator with multiple names) using the "N" data type and the Overlay 
keyword.
  Ex: D  Indicator_DS           DS
        D    Error_1                                              N   
Overlay(Indicator_DS : 25)
   
  This will associate the variable Error_1 with indicator 25 in your display 
file.
  It will *not* associate it with *IN25.
   
  

"Weber, Richard" <Weberr@xxxxxxxxxxx> wrote:
  We are developing a set of Free Form RPG coding standards. (Yes, now. We
are primarily a COBOL shop just moving over to RPG, stepping boldly into the
1980's!) I want to get the opinion of the group on a technique for setting
DSPF indicators that was proposed. 



The proposal was to code a data structure for the screen indicators using
the "N" data type and to use variable names that are meaningful. The
technique that I am asking for opinions on is that the group of indicators
can be set or tested by using a string such as: '0010000000100000000".



I am intentionally not stating my opinion, so as not to affect your
comments. Thanks for your input. Code snips follow. The purpose of this
code it to control which functions keys are available when the screen
displays:



D DspFInd DS 

D FunctionKey 1 24 

D PageDown 25 25N 

D Request 28 30 

.

.

.

BEGSR $S0Display; 

Request = '100' ; 

FunctionKey = '001000000001000000000000' ; 

EXSR $SZGET; 

EXSR $S1DspFmt; 

ENDSR; 





Richard L. Weber | Senior Systems Analyst, TOYS 'ñ' US International |
973.617.3497 | weberr@xxxxxxxxxxx 




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