_______________________________________________________________________________ This is the Windows CE Info-ZIP port README, last updated 10 February 2001. _______________________________________________________________________________ Copyright and Disclaimer _______________________________________________________________________________ Copyright All the source files for Pocket UnZip are copyrighted by Info-ZIP. For details on terms and conditions look into the LICENSE file that should be part of the source distribution. The original author Steve P. Miller has gracefully allowed to put his own source contributions for "Pocket UnZip" under the Info-ZIP license. Disclaimer All project files are provided "as is" with no guarantee of their correctness. The authors are not liable for any outcome that is the result of using this source. The source for Pocket UnZip has been placed in the public domain to help provide an understanding of its implementation. You are hereby granted full permission to use this source in any way you wish, except to alter Pocket UnZip itself. For comments, suggestions, and bug reports, please write to stevemil@pobox.com or to the generic Info-ZIP e-mail address Zip-Bugs@lists.wku.edu. _______________________________________________________________________________ About the Windows CE Port (known as "Pocket UnZip") _______________________________________________________________________________ The Windows CE port, known as Pocket UnZip, is designed to run on Microsoft's Windows CE operating system. The port is completely contained in the files listed above. There were very few minor modifications made to the Info-ZIP code in order for this port to work. This was possible because the Info-ZIP code is fairly generic and also because several hooks have already been placed in the code from past Windows ports. The Windows CE port leverages off of these efforts for two reasons. Mainly, I wanted to avoid modifying the Info-ZIP core code since people don't like it when your changes break other ports. Second, this makes the Windows CE port easy to upgrade when fixes and features are released by the Info-ZIP group. The port is made up of the project file (punzip.dsp), one global header (punzip.h), three main source modules (winmain.cpp/h, intrface.cpp/h, and wince.cpp/h), the resource script files (punzip.rc, punzip.rcv, and resource.h), several resources (punzip.ic2, zipfile.ic2, imglist.2bp, ilmask.bmp, toolbar.2bp, punzip.ico, zipfile.ico, imglist.bmp, and toolbar.bmp), and the help file (punzip.htp). The application's entry point is WinMain(), which is located in winmain.cpp (what a surprise). winmain.cpp basically contains all the Windows code and the user interface. It knows nothing about the Info-ZIP code or things like the Globals struct. That stuff is the job of the intrface module. intrface.cpp implements an easy (or at least easier) to understand interface to the Info-ZIP routines. It also handles all the callbacks from Info-ZIP and relays the appropriate information back to the code in winmain.cpp. The final module is wince.cpp. This module implements all the Win32 APIs and C runtime functions that are called by the rest of the code, but are not natively implemented on Windows CE. Most all of this module is excluded for NT native builds. Two preprocessor defines are used in conjunction with several defines from the Info-ZIP code and from other ports. The two that are specific to the Windows CE port are: POCKET_UNZIP Always set for the Windows CE port (CE and NT). _WIN32_WCE Set for Windows CE native; not set for Windows NT native. These three defines are the minimum defines that must be addressed by the project file in order to build this port. This port's main header, punzip.h, gets included by all the Info-ZIP source files when POCKET_UNZIP is defined. punzip.h in turn ensures that all the other relevant Info-ZIP defines are set to correctly build the port. If you wish to alter the Info-ZIP defines used to build this port, you can do so by altering punzip.h. There are quite a few _WIN32_WCE checks throughout the source files for this port. These checks allow the application to build natively for Windows NT for debugging purposes, and just because it can with little effort due to the similarities between the Windows CE API and the Windows NT API. Any non-Windows CE code is assumed to be for Windows NT only. This project currently will not work on Windows 95 because Windows CE is mostly UNICODE, and this port assumes that all Win32 calls to the operating system take UNICODE parameters. I could scatter a few dozen "#ifdef UNICODE" checks around and make it work on Windows 95, but I see no reason to complicate this port's code for that reason since there is already a Windows 95 port of the Info-ZIP code. _______________________________________________________________________________ Building the Windows CE Port (known as "Pocket UnZip") _______________________________________________________________________________ At the time this README was written, Microsoft just released Visual C++ for Windows CE version 1.0. This development kit uses the the standard Microsoft Visual C++ version 5.0 or 6.0 development environment and project files (DSP files). To build Windows CE binaries of Pocket UnZip, you will need version 1.0 or later of Visual C++ for Windows CE. This port's project file, punzip.dsp, contains the information for building all the various binaries. These include Windows NT native, Windows CE native for Hitachi SH-3 processors, and Windows CE native for MIPS processors. All projects have Debug and Retail flavors as well. The following table lists the Windows CE devices and which binary they run: Manufacturer CPU Binary --------------------- ------------ ------ Philips Electronics MIPS R3910 MIPS NEC Corp. NEC VR4101 MIPS Casio Computer Co. Hitachi SH-3 SH-3 Compaq Computer Corp. Hitachi SH-3 SH-3 Hewlett-Packard Co. Hitachi SH-3 SH-3 Hitachi Ltd. Hitachi SH-3 SH-3 LG Electronics Inc. Hitachi SH-3 SH-3 Pocket UnZip should build out of the box. If you have just unzipped the Info-ZIP's UnZip sources, you should have a root directory with the core Info-ZIP files in it and several subdirectories under it for the various ports, one of which is the WinCE directory. The project files punzip.dsp are located in the subdirectory vc5 resp. vc6 below the wince directory. Open the punzip.dsp file from the subdirectory matching your Visual C++ base version. The project file uses all the files in the WinCE subdirectory as well as the following files in the Info-ZIP root: api.c crypt.h globals.c process.c unzip.h consts.h ebcdic.h globals.h ttyio.c unzpriv.h crc32.c explode.c inflate.c ttyio.h unzvers.h crctab.c extract.c inflate.h unreduce.c zip.h crypt.c fileio.c list.c unshrink.c _______________________________________________________________________________ Contacting the Authors _______________________________________________________________________________ The Info-ZIP group is made up of dozens of people, past and present, who have devoted countless hours to providing the public with free and portable compression software. The author of the Windows CE port, Pocket UnZip, is Steve P. Miller. If you have questions, comments, suggestions, or bug reports concerning Pocket UnZip itself, you can write Steve Miller at: stevemil@pobox.com If you find a bug that appears to be more Info-ZIP related (i.e. the actual decompression part of Pocket UnZip), you can send mail to: Zip-Bugs@lists.wku.edu For all other general discussion type questions or comments, you can send mail to (as well as join) the following mailing list: Info-Zip@lists.wku.edu See the main UnZip README file for info on how to join the latter list.