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- Paradox OS/2 Read Me First
- Documentation Supplement
-
-
- This supplement contains important information that is not
- included in the Paradox OS/2 Read Me First booklet.
-
-
- Table of Contents
- -----------------
-
- General
-
- Documentation Modifications
-
- I. [Ctrl][Q] and Paradox OS/2
-
- II. [Ctrl][C] and Paradox OS/2
-
- III. Paradox OS/2 and OS/2 Keycodes
-
- IV. Network User Names
-
- V. The -nonet Parameter
-
- VI. The PRINTERSTATUS Function
-
- VII. Two Sessions Printing at Once without the OS/2 Print
- Spooler
-
-
-
-
- General
-
- Paradox OS/2 runs under both OS/2 version 1.0 and version 1.1,
- Standard and Extended Editions.
-
- There are three files included in this supplement. The first
- (README) describes the changes to the documentation, the second
- (SKDOC) describes how to use Paradox OS/2 and Paradox 2.0 to
- share files with Sidekick for Presentation Manager and the third
- (SKAPPS) is the documentation for three Paradox applications that
- work with Sidekick for Presentation Manager.
-
-
-
- Documentation Modifications
-
- I. [Ctrl][Q] and Paradox OS/2
-
- [Ctrl][Q] as used to quit script debug mode has been replaced
- with [Alt][Q]. [Ctrl][Q] will continue to work when Paradox OS/2
- is run from a full screen command prompt, but will not when
- Paradox OS/2 is run from a windowed command prompt. [Alt][Q]
- will work in both cases.
-
- II. [Ctrl][C] and Paradox OS/2
-
- Appendix B (Keycodes Recognized by Paradox) of the PAL User's
- Guide lists all the keycodes that Paradox 2.0 recognizes. While
- Paradox OS/2 recognizes [Ctrl][C], [Ctrl][C] under OS/2 has a
- functional equivalent to [Ctrl][Break], which interrupts the
- current operation. For this reason, you shouldn't assign special
- meaning to [Ctrl][C] in Paradox OS/2. If you have developed
- Paradox applications that use [Ctrl][C] under other versions of
- Paradox, you should change them in order for those applications
- to run smoothly under Paradox OS/2.
-
- You can disable both the [Ctrl][C] and [Ctrl][Break] keycodes in
- Paradox OS/2 by using the More/DisableBreak selection in the
- Custom Configuration Program. See "DisableBreak" in Chapter 16
- (Advanced Topics) of the Paradox User's Guide for details.
-
- III. Paradox OS/2 and OS/2 Keycodes
-
- Paradox OS/2 doesn't recognize the full set of OS/2 keycodes
- representing extensions to the DOS key set. This includes the
- following keycodes:
-
- [F11]
- [F12]
- [Ctrl][F11]
- [Ctrl][F12]
- [Shift][F11]
- [Shift][F12]
- [Ctrl][Up]
- [Ctrl][Down]
- [Center](the [5] key on the numeric keypad in cursor mode)
-
- IV. Network User Names
-
- Unlike Paradox 2.0, Paradox OS/2 does not access the network
- operating system to identify each user by name. You can set the
- user name in three different ways:
-
- use the Network/UserName option in the Custom
- Configuration Program
-
- use the Tools/Net/UserName option in Paradox
-
- start Paradox OS/2 with the user parameter; if "ethel"
- is your user name, start Paradox OS/2 with the
- following command:
-
- pdoxos2 -multi -user ethel
-
- You can include -user and a user name as parameters to
- the pdoxos2 command when you install Paradox OS/2 on
- the Program Selector. For basic details, see
- "Installing Paradox OS/2 on the Program Selector" in
- Chapter 2 (Installing and Starting Paradox OS/2) in
- Paradox OS/2 Read Me First.
-
- V. The -nonet Parameter
-
- If you have installed Paradox OS/2 on your workstation so that
- you can share network data but your workstation is not logged in
- to your network, you can start a single local Paradox OS/2
- session with the -nonet option. The -nonet option relieves
- Paradox OS/2 from having to apply file locks. This may enhance
- Paradox OS/2 performance.
-
- If you start Paradox OS/2 with the -nonet option, you cannot
- start multiple Paradox OS/2 sessions on a single workstation,
- that is, you cannot use the -multi option to start another
- Paradox OS/2 session (see "Using or Omitting the -multi
- Parameter" in chapter 2 (Installing and Starting Paradox OS/2) in
- Paradox OS/2 Read Me First).
-
- The -nonet and -multi parameters have opposite effects when
- specified with pdoxos2. For this reason you should not specify
- both of them when you start Paradox OS/2. However, if you forget
- and include both the -nonet and -multi parameters on the same
- pdoxos2 command line, -multi will override -nonet.
-
- V. The PRINTERSTATUS Function
-
- OS/2 provides a print spooler service that accommodates multiple
- print requests from different sessions. Because of this print
- spooler, your computer's printer is always "ready," even if the
- printer is already actively printing when a session sends a new
- job to the printer.
-
- If you use the PAL function PRINTERSTATUS with Paradox OS/2 to
- test if the printer is ready, PRINTERSTATUS will always return
- true indicating readiness, even if something else is printing out
- when the PAL script performs the check. This is because the
- print spooler is always ready to accept another job. This
- behavior of PRINTERSTATUS is therefore different from its
- description in Chapter 20 (PAL Functions) of the PAL User's
- Guide.
-
- However, if you disable the OS/2 print spooler so that Paradox
- accesses the printer directly, then PRINTERSTATUS behaves as
- documented in Chapter 20 (PAL Functions of the PAL User's Guide.
- With the print spooler disabled, the printer is ready when it is
- on and not currently printing.
-
- VI. Two Sessions Printing at Once without the OS/2 Print Spooler
-
- You should enable the OS/2 print spooler in all multisession
- situations, whether you are using Paradox OS/2 or not. The only
- situation in which you should consider disabling the OS/2 print
- spooler is when you are printing from a single OS/2 session in
- which you are running Paradox OS/2.
-
- Should you forget this important guideline and send jobs to the
- printer from multiple Paradox OS/2 sessions without the OS/2
- print spooler enabled, you will probably experience intermixed
- printing from both jobs at once. You could also conceivably
- encounter I/O errors. The remedy is first to cancel printing
- from all but one of the Paradox OS/2 sessions sending jobs to the
- printer and then to re-enable the OS/2 print spooler.
- Re-enabling the OS/2 print spooler requires that you modify the
- CONFIG.SYS file (or CONFIG.OS2 for dual boot systems) and reboot
- your computer system. Consult the OS/2 system documentation for
- information on these tasks.
-