REVMEDIA FKB Articles - AREV, OI, REV G, jREV, JCDC, LIVEWATER,ADVANCED REVELATION, OPENINSIGHT, REVELATION G

RevMedia FKB

Document	V3I4A3
Title	REVMEDIA Revisited
Keywords	$RTP1 REVBTMSG WINDOW_COMMON% GAS.BAR STATUP @STATLIST SUM RTP38 RTP42 RTP18 RTP18.ENGLISH V5 V6 V7 SELECT BTREE.EXTRACT OSOPEN SETPTR INIT.VIEW VIEWER SECUREUSER
Text	To ensure that your documentation is as up to date as possible we introduce an occasional series intended to bring previous REVMEDIA articles into line with release 2 1 of AREV Note that we will normally emphasise information that has become outdated new features will be left to later issues unless they DIRECTLY impact on RTPSeries VERBatim and @ATTACK My thanks to all subscribers who have helped by notifying me of bugs or discrepancies Thanks also to RevTech for fleshing out some of the previously "unsure" RTPs Special thanks to Dave Mills of the Nature Conservancy Council VOLUME 1 ISSUE 1 Page 8 Reference is made to modifying $RTP1 to change the "Processing" message at logon This is no longer necessary as all logon messages are stored in the DOS file REVBTMSG on REVBOOT and can be modified there Page 9 Codes S/L the two codes are slightly DIFFERENT not identical as stated The L code is not able to access window registers Page 10 Alt M no longer corrupts an active select list and the "locate by" anomaly has been fixed VOLUME 1 ISSUE 2 Page 2 FILE LOC has been removed Page 3 The bug has been fixed Page 3 The system has been modified so that if any of the prompts to be redisplayed or removed are multi valued and/or required then all other necessary WINDOW_COMMON% VARIABLES are kept in step Page 10 If the help level is anything other 0 screen corruption can occur whilst USING GAS BAR Neil White of the Inland Revenue and Al Blake point out that the location parameter in the STATUP call cannot be a null value if the help level is not 0 (See 2 1 Addendum p8 69) It must contain a template name FROM @STATLIST The template will not be affected by this operation He suggests CHANGING line 22 by inserting the following if @HELP LEVEL # 0 then DUMMY = "LIST" end else DUMMY = "" end statup(PUSH$ DUMMY SAVE STATUS) Note further that if @REC COUNT = 1 the bar will not clear down properly This then effects subsequent CALLS To avoid this problem TEST for @REC COUNT > 1 rather than IF @REC COUNT on line 17 See ALSO the corrections in the editorial of VOLUME 1 Issue 3 for this code listing VOLUME 1 ISSUE 3 Page 4 Note that the "File" where the index is located is a dictionary file VOLUME 1 ISSUE 4 Page 5 The SUM PROCESSOR now expects all values to be NUMERIC OR null It will BREAK WITH a non numeric message if alpha characters are summed Page 7 RTP38 performs FILING System flushes not complete frame flushes Page 7 RTP42 is used to maintain system LABELLED COMMON information Page 10 This article has been superseded by the new index hook functionality VOLUME 1 ISSUE 5 Page 5 Whilst V5 is the SELECT processor there is no Verb record to support it This tends to suggest that the functionality has been built into a lower level of RTP18 and RTP18 ENGLISH Page 6 V6 now supports A B F and K Page 6 V7 has been removed VOLUME 1 ISSUE 6 Page 3 Message DISPLAY when USING BTREE EXTRACT can now be suppressed by USING the optional FLAGS provided Parameters five and six in a BTREE EXTRACT CALL are used to indicate OPTIONS and ERROR flags respectively PASSING an "E" in options will suppress all error messages whilst PASSING an "S" will display all informational messages (See 2 1 Addendum p 8 9 but bear in mind that it IS possible to suppress both kinds of message by PASSING SE or ES) Page 4 OSOPEN the line "If the STATUS is 2 the DIRECTORY exists if 2 a file exists WITH that name" should READ "If the status is 2 the directory exists if 4 the directory does not exist and if 0 a file exists WITH that name " Page 4 SETPTR An additional error codes of 4 exists meaning Not Enough File Handles As a side point users of products such as HIJAAK may get this message when trying to CAPTURE SCREENS FROM within AREV due to the amount of FILES AREV holds OPEN To get ROUND this issue a FLUSH or PC at TCL this will free up file handles Page 6 INIT VIEW has been amended to work better within called subroutines However usage can be a little disconcerting unless properly understood There are two ways to utilise REPORT programs USING INIT VIEW by CALLING subroutines that use it and by EXECUTE "RUN" programs / subroutines that use it The latter is normally to be preferred Unfortunately VIEWER behaves in an unusual manner which does not lend itself to a lucid explanation The pseudo code following attempts to explain it loop until pressed begin case CASE key = PgDn if LAST_PAGE and FIRST_TIME run rest of SUBROUTINE then if called as subroutine then return to CALLING subroutine complete CALLING subroutine return to PAGE logic else if RUN by EXECUTE/PERFORM then stay in page logic until end end end else if not(LAST_PAGE) show NEXT page end end case key = PgUp if not(FIRST_PAGE) then show previous page end end case repeat To clarify the above try running the following sections of code and pressing PgDn at the bottom of the report EXAMPLE 1 PERFORM "RUN BP TEST" * NB This only displays AFTER call msg("And back" "" "" "") EXAMPLE 2 call TEST * NB this displays AFTER 1st PgDn at bottom call msg("And back" "" "" "") subroutine test call INIT VIEW(40) @VIEW MODE = 1 HEADING "TEST REPORT" for X = 1 TO 150 print "TESTING INIT VIEW " : X next call msg("Bottom of Report 1!" "T2" "" "") for X = 1 to 150 print "and more! " : X next call msg("Bottom of Report 2!" "T2" "" "") return Note further that VIEWER now uses the VIDEO attributes set up in @AW so that the COLOUR may be controlled by manipulating the following @AW fields : < 1 > VIEW window BORDER and title < 2 > HEADING/FOOTING and COLHEADING < 3 > BACKGROUND to use in absence of any other (indicated by a CHAR(127) in the background byte position) < 8 > MAIN TEXT colour < 9 > Border type Page 10 SECUREUSER see editorial of issue 8 for correction to object code modification (Volume 3 Issue 4 Pages 6 9)

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Page last modified: 08/02/03