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RE: Field Lenght

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Partha,

I think that both points are covered by use of CURSOR IS, as I described in a separate response. There is no means I am aware of of determining the location of an ACCEPT field but if you are using F12 to terminate the ACCEPT and have a CRT STATUS item in SPECIAL-NAMES the item will indicate the key that terminated the ACCEPT and the CURSOR IS item will tell you the cursor position and you should be able to determine the field you were on from that. The CURSOR IS will also control the location of the cursor when you redo the ACCEPT so provided it is a valid position for the screen definition the cursor should be placed back on that field. Below is a a very old sample showing the use of F1 to display a help screen 

     ****************************************************************

     * This program assumes that the default configuration has been *

     * selected using Adiscf.                                       *

     ****************************************************************

 

       special-names.

           cursor is cursor-position

           crt status is key-status.

 

       data division.

       working-storage section.

 

     **************************************************

     * Parameters to be used for the x"AF" calls.

     **************************************************

      

       01 set-bit-pairs             pic 9(2) comp-x value 1.

       01 get-single-character            pic 9(2) comp-x value 26.

      

       01 enable-esc-and-f1.

          03 filler                pic 9(2) comp-x value 1.

           03 filler                pic x value "1".

           03 filler                pic 9(2) comp-x value 0.

           03 filler                pic 9(2) comp-x value 2.

      

       01 disable-all-other-user-keys.

           03 filler               pic 9(2) comp-x value 0.

           03 filler                pic x value "1".

           03 filler               pic 9(2) comp-x value 2.

           03 filler               pic 9(2) comp-x value 126.

      

      

       01 enable-slash-key.

           03 filler               pic 9(2) comp-x value 1.

           03 filler               pic x value "3".

           03 filler                pic x value "/".

           03 filler                pic 9(2) comp-x value 1.

 

     **************************************************

     * Status returned after termination of an ACCEPT.

     **************************************************

       01 key-status.

           03 key-type              pic x.

           03 key-code-1            pic 9(2) comp-x.

           03 key-code-1-x          redefines key-code-1 pic x.

           03 key-code-2           pic 9(2) comp-x.

      

     **************************************************

     * Cursor-Position is returned by ADIS containing

     * the position of the cursor when the ACCEPT was

     * terminated.

     ***************************************************

       01 cursor-position.

           03 cursor-row           pic 99.

           03 cursor-column        pic 99.

      

     **************************************************

     * Work areas used by the program.

     **************************************************

       01 work-areas.

           03 wa-name               pic x(30).

           03 wa-address-line-1           pic x(40).

           03 wa-address-line-2           pic x(40).

           03 wa-address-line-3           pic x(40).

           03 wa-address-line-4           pic x(40).

           03 wa-age               pic 999 value 0.

      

       01 exit-flag                 pic 9(2) comp-x value 0.

      

      

     **************************************************

     * Screen Section.

     **************************************************

       screen section.

      

       01 main-screen.

           03 blank screen.

           03 line 2 column 27

               value "Typical Data Entry Screen".

           03 line 3 column 27

               value "-------------------------".

           03 line 5 column 1 value "name     [".

           03 pic x(30) using wa-name highlight prompt " ".

           03 value "]".

           03 line 7 column 1 value "address [".

           03 pic x(40) using wa-address-line-1 highlight prompt " ".

           03 value "]".

           03 line 8 column 1 value "         [".

           03 pic x(40) using wa-address-line-2 highlight prompt " ".

           03 value "]".

           03 line 9 column 1 value "        [".

           03 pic x(40) using wa-address-line-3 highlight prompt " ".

           03 value "]".

           03 line 10 column 1 value "         [".

           03 pic x(40) using wa-address-line-4 highlight prompt " ".

           03 value "]".

          03 line 12 column 1 value "age     [".

           03 pic zz9 using wa-age highlight prompt " ".

           03 value "]".

           03 line 20 column 1 value

             "---------------------------------------------------------

     -      "-----------------------".

           03 line 21 column 1 value "f1" highlight.

           03 value "=".

           03 value "/h" highlight.

           03 value "elp".

           03 column 75 value "esc" highlight.

           03 value "ape".

      

       01 help-screen.

           03 blank screen.

           03 line 1 column 34 value "Help Screen".

           03 line + 1 column 34 value "-----------".

           03 line 4 value "escape" highlight.

           03 value "     Quit this program.".

           03 line 6 column 1 value "f1 or /h" highlight.

           03 value "   View this help screen.".

           03 line 8 column 1

               value "Use the cursor keys to move around ".

           03 value "the fields on the screen.".

           03 value " Pressing enter".

           03 line + 1 column 1 value "accepts the data ".

           03 value "and presents a new blank form to fill in.".

           03 line 24 column 25

               value "Press any key to continue ...".

      

     **************************************************

     * Procedure Division.

     **************************************************

      

       procedure division.

       entry-point section.

      

     * First we want to ensure that the keys are enabled as we want

     * them. Enable the Escape and F1 keys.

      

           call x"AF" using set-bit-pairs

                           enable-esc-and-f1

      

     * disable every other user function key.

          call x"AF" using set-bit-pairs

                           disable-all-other-user-keys

      

     * set up "/" key to act as a function key and terminate

     * the ACCEPT operation.

      

           call x"AF" using set-bit-pairs

                          enable-slash-key

      

     * Now ensure that the cursor position will be returned when an

     * ACCEPT is terminated. Setting to row 1, column 1 will ensure

     * that the cursor will be initially positioned at the start of

     * the first field.

      

           move 1 to cursor-row

           move 1 to cursor-column

      

     * Loop until the Escape key is pressed.

      

           perform until exit-flag = 1

               display main-screen

              accept main-screen

               evaluate key-type

                 when "0"

      

     * The ACCEPT operation terminated normally; that is the Enter key

     * was pressed. In this case, we simply blank out the work areas

     * and restart in the first field.

      

                   initialize work-areas

                   move 1 to cursor-row

                   move 1 to cursor-column

      

                 when "1"

      

     * A user function key has been pressed. This will either be

     * Escape or F1 as all others have been disabled.

      

                   if key-code-1 = 0

    

     * Escape has been pressed, so we wish to leave the program.

      

                       move 1 to exit-flag

                  else

    

     * F1 has been pressed so display the help screen.

                       perform display-help-screen

                 end-if

      

                 when "3"

      

     * A data key has terminated the ACCEPT operation. It must be "/"

     * as no other keys have been enabled to do this. Now get the

     * next character to see if "H" or "h" has been pressed.

      

                   call x"AF" using get-single-character

                                    key-status

                   if key-type = "3" and

                     (key-code-1-x = "h" or

                     key-code-1-x = "H")

                       perform display-help-screen

                   end-if

      

               end-evaluate

           end-perform

           stop run.

      

       display-help-screen section.

    

     * Display the help screen and then wait for a key to be pressed.

      

           display help-screen

           call x"AF" using get-single-character

                           key-status.

 

:

 

Gael


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