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- Documentation for WBStart V2.2 18-Sep-1996
-
-
- Permission is granted to make and distribute verbatim copies of this
- manual provided the copyright notice and this permission notice are
- preserved on all copies.
-
- COPYRIGHT
-
- Copyright (C) 1991-96 Stefan Becker
-
- No program, document, data file or source code from this software
- package, neither in whole nor in part, may be included or used in other
- software packages unless it is authorized by a written permission from
- the author.
-
-
- NO WARRANTY
-
- There is no warranty for this software package. Although the author
- has tried to prevent errors he can't guarantee that the software package
- described in this document is 100% reliable. You are therefore using this
- material at your own risk. The author cannot be made responsible for any
- damage which is caused by using this software package.
-
-
- DISTRIBUTION
-
- This software package is freely distributable. It may be transfered to
- any media which is used for the distribution of free software like Public
- Domain disk collections, CDROMs, FTP servers or bulletin board systems.
-
- In order to ensure the integrity of this software package distributors
- should use the original archive file WBStart2_2.lha (file name on Aminet:
- WBStart.lha). The author cannot be made responsible if this software
- package has become unusable due to modifications of the archive contents
- or of the archive file itself.
-
- There is no limit on the fee taken by distributors, e.g. for the media
- costs of floppy disks, streamer tapes or compact discs, or the process of
- duplicating. Such limits have proven to be harmful to the idea of freely
- distributable software, e.g. the software package was removed instead of
- reducing the price of a floppy disk below the limit.
-
- Although the author does not impose any limit on these fees he would
- like to express his personal opinions on this matter:
-
- * This software package should be made available to everyone free of
- charge whenever this is possible.
-
- * If you have purchased this software package under normal conditions
- from a Public Domain dealer on a floppy disk and have paid more than
- 5DM or US $5 then you have definitely paid too much. Please don't
- support this improper profit making any longer and switch to a
- cheaper source as soon as possible.
-
-
- USAGE RESTRICTIONS
-
- No program, document, data file or source code from this software
- package, neither in whole nor in part, may be used on any machine which
- is used
-
- * for the research, development, construction, testing or production
- of weapons or other military applications. This also includes any
- machine which is used in the education for any of the above
- mentioned purposes.
-
- * by people who accept, support or use violence against other people,
- e.g. citizens from foreign countries.
-
-
-
- I. What is the purpose of this software package?
- ================================================
-
- WBStart is a package to emulate the Workbenchs' method of starting
- programs. Emulating this method seems to be easy on the first look,
- because you only have to load a program, create a process and then send a
- Workbench startup message to it.
-
- But complications arise from this startup message. It contains pointers
- to memory and directory locks owned by your process and it will not be
- returned until the newly created Workbench process exits. So your process
- can't quit until ALL Workbench processes which have been started by your
- process are finished. If you don't wait the replied messages will go into
- nowhere land and the man from India will visit you.
-
- WBStart solves this problem by using a handler process, which loads the
- program, creates the process, sends the message and then waits for the
- reply. You just supply all needed information like program name and
- arguments in a library call. The handler copies this information so your
- program can free its resources and exit.
-
-
-
- II. Installation
- ================
-
- Just copy the files libs/wbstart.library and libs/dospath.library into
- your LIBS: directory.
-
- The file WBStarter in dev/c/examples is an example program how to use the
- library. It has the following syntax:
-
- WBStarter <command> [<command> ...]
-
- WBStarter tries to start each command as Workbench process without
- parameters.
-
-
-
- III. Caveats
- ============
-
- - Use always path names in the Default Tool field in project icons. If
- you use only the program name then the wbstart.library has to scan the
- path list of the Workbench to locate the program. In this case the
- program may not be able to locate its icon, because most programs
- look only into the current directory for the icon and do not look into
- PROGDIR: as a backup solution. As a result the program can't find its
- tool types and might work incorrectly.
-
- NOTE: The same problem also occurs with the Workbench.
-
-
-
- IV. Contents of this software package
- =====================================
-
- dev/ Autodoc, FD, Assembler, C and Oberon support files for the
- wbstart.library. It also contains the C source code for the
- WBStarter example and the DICE link libraries.
-
- libs/ wbstart.library and dospath.library.
- Copy these files to LIBS:
-
- src/ Source code for the wbstart.library. It has been written for
- DICE 3.0 and is included for educational purposes only. Use
- the command "DMake" to compile it.
-
- WBStart.txt This documentation.
-
-
-
- V. Credits
- ==========
-
- I would like to thank:
-
- - Allan Odgaard <Duff@DK-Online.DK> for the Assembler support files.
-
- - Thomas Igracki <T.Igracki@bamp.berlinet.de> for the Oberon support files.
-
-
-
- VI. History
- ===========
-
- 2.2 (18-Sep-1996)
-
- - Added "Caveats" and "Credits" section.
- - Added Assembler and Oberon support files.
- - Clarified directory lock usage in AutoDoc entry for WBStartTagList().
- - Fixed problems with softlinks and project icons introduced in 2.1.
- - Now uses dospath.library for AmigaDOS path list handling.
-
- 2.1 (07-Jun-1996)
-
- - Now handles file names correctly which contain a path part that
- points to a multiple assign.
-
- 2.0 (13-Mar-1996)
- - The code has been rewritten from scratch.
- - The handler has been integrated into a shared library. This means
- that you don't have to start the handler by hand anymore. It will be
- started automagically when you try to start a WB program using a
- library call. This also means an end to all these "I can't start WB
- programs" error reports resulting from a missing e-Flag on the file
- L:WBStart-Handler :-)
-
- NOTE: The old interface is not supported anymore!
- You have to rewrite your applications.
-
- - Requires OS 3.0 (V39) or better.
- - Now uses memory pools to reduce memory fragmenting.
- - Improved WB starter code. It should be almost 100% compatible to the
- real Workbench now.
-
- NOTE: This may result in some incompatibilities to the old WBStart
- package, so you might have to change some of the input
- parameters, e.g. in ToolManager Exec objects.
-
- - Fixed the problem with variables and aliases.
- - Fixed the problem with project icons whose default tool had no icon.
-
- 1.4 (03-Oct-1993)
- - If the handler can't duplicate the lock of an argument, it now looks
- if the argument name ends with a ':'. This type of argument
- specifies a device and is produced by the Workbench, e.g. if you put
- an unformatted disk into a drive and use the device icon as argument
- to the program SYS:System/Format.
-
- 1.3 (27-Jun-1993)
- - The handler now copies the path from the WB process. This solves the
- problems with programs which use WB2CLI() or similiar functions to
- get the WB path list, e.g. SYS:System/CLI. My apologies to Michael
- Sinz, Michael B. Smith and the GRn beta testers.
- - The handler now scans the path list when it tries to load a program.
- - The handler now uses NewLoadSeg() instead of LoadSeg().
- - Major source cleanup.
-
- 1.2 (21-Sep-1992)
- - Corrected version string.
-
- 1.1 (13-Sep-1992)
- - Fixed weird return bug in WBStart.
- - Fixed "Insert volume PROGDIR:..." bug.
-
- 1.0 (24-Nov-1991)
- - Initial release
-
-
-
- VI. Contact addresses
- =====================
-
- Send comments, suggestions or bug reports to:
-
- Postal address:
-
- Stefan Becker
- Bonner Ring 68
- D-50374 Erftstadt
- GERMANY
-
- EMail: stefanb@yello.ping.de
-
- World Wide Web: http://www.ping.de/sites/yello/
-