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-
- Unpack.svobject
-
- © 1994-96 by Andreas R. Kleinert.
-
- FREEWARE. All rights reserved.
-
- Version : 4.2
- Release Date : 27.08.1996
-
-
- Disclaimer
- ~~~~~~~~~~
- The author takes no responsibility for any results of the use of this
- program.
- This software is provided "AS IS" and there is no warranty of any kind,
- so that you use this software at your own risk.
-
- Foreign Copyrights and Credits
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- The "powerpacker.library" V33+ is (C)opyright by Nico François.
- The Library is FREEWARE and is needed by Unpack.svobject, to be able
- to read and decode PP20-packed files.
-
- The "xpkmaster.library" V2+ is (C)opyright by its authors
- (c/o Urban Dominik Müller).
- The Library is freely distributable and is needed by Unpack.svobject,
- to read and decode XPK-packed files.
-
- Some of the mentioned names or products in this document may be
- copyrighted by companies or trademarks of companies.
-
- Requirements
- ~~~~~~~~~~~~
- - superview.library and superviewsupport.library (see there)
- - "xpkmaster.library" V2+ and/or "powerpacker.library" V33+
-
- Description
- ~~~~~~~~~~~
- Unpack.svobject is an external Library-Module for the superview.library.
-
- I supports reading of XPK- or PowerPacked files and will re-parse
- these through superview.library by creating an temporary, unpacked
- file at the location "VMEM:" and then retries the specific
- operation on the file.
-
- So this is just a Dummy-SVObject which does for you the work of
- unpacking graphics files before displaying them.
-
- Writing (packing) of files is not possible (yet).
-
- Remarks
- ~~~~~~~
- * VMEM:
- * Temporary data will be written to a directory assigned to "VMEM:".
-
- * Compatibility:
- * This SVObject is just thought to make your life easier, if you've
- to handle many packed files, which you don't want to unpack each time
- you want to display them.
- Nevertheless it is recommended instead to work with unpacked files,
- wherever possible.
- If you wish to pack files with PP20 or XPK, please use SuperView's
- own SVG file fomrat for this instead.
-
- History
- ~~~~~~~
- V4.2 (27.08.1996) :
-
- - now has new disk read/write flags set
- - V4.1 did contain wrong docs (V3.6)
-
- V4.1 (06.08.1996) :
-
- - now uses/requires semaphore system of superview.library V14+
- - now correcly handles SVOCheckFile
-
- V3.5 (28.6.1996) :
-
- - recompiled
- - updated docs
- - changed internal stuff
-
- V3.4 (21.12.1995) :
-
- - added REV. 2 of new, rock-solid startup code
-
- V3.3 (10.12.1995) :
-
- - added new, rock-solid startup code
- - no longer causes crashes
- - now opens "xpkmaster.library" just when needed and not when
- initializing module. This should have two effects:
- - if you want to save packed data, but there's no library,
- it will be saved unpacked instead
- - initialization time should be much shorter, so that possibly
- the crashes occuring on 060 systems should no longer occur
- (hopefully)
- - the xpk-libraries may be flushed from memory completely,
- when no longer actually being needed and used
- - opening the svobject does no longer depend on the presence
- of xpk- and or powerpacker-library (so unpacked files may as
- well be read/written on systems without these)
-
- V3.2 (29.10.1995) :
-
- - recompiled with SAS/C V6.56
-
- V3.1 (07.10.1995) :
-
- - updated to V3 specs
-
- ****************************************************************************
- * Revison history entries before V3.1 have been deleted for space reasons *
- ****************************************************************************
-