Open Logo Hack Homepage
Features:
Screenshot-en
- Multiple Bitmaps in one database file
- Selectable bitmap
- Cyclic change of bitmap
- Adjustable duration of logo display
- Backlight support
- Supports Black/White, Grayscale, 8 bit and 16 bit C O L O R Images
- Supports PalmOS 2.0 upto 4.0
- Standard Resource files for bitmap and database
- Database comment field
- Bitmap converter / Database Creator (Java)
- Multi Language support (English/German)
- Open source

Screenshot-de
Why another Hack for Logos: I want to see a GNU Logo at my Palm, so I tried the simple logohack.prc but it did a stack overflow on the Palm Emulator. Next I tried imgxhack. It worked well but it had a proprietary format for the image database and only a tool for MSWindows to create it.
So I started to develop a new logo hack.
License: This program is Open Source under the GNU General Public License!
Copyright © 2001 by Frank Schnekenbühl
Warranty: There is absolutely no warranty for the program. Use at your own risk.
Please report errors / misbehavior.
Hardware/Palm OS: Should work on all Hardwareplatforms with 160x160 pixel black and white, grayscale or color display and PalmOS 2.0 or higher.
Tested on:
Palm III, German PalmOS 3.3.
POSE, PalmOS 2.0, 3.1, 3.5 and 4.0
Handspring Visor (unknown PalmOS)
Palm m100, PalmOS 3.5.2.3.0.
Testreports for other Hardware/PalmOS versions are welcome.
Download: You will find all the files here.
There is a binary package which contains the only the prc files, the GNU logos and the creator program.
There is a source package which contains the complete project sources.
Additionaly there is a small package which contains the only the prc files and the GNU logos.
Requirements You will need a program to manage PalmOS system extensions (aka Hacks).
Get a free one here (X-Master) or here (EVPlugbase).
To use the creator tool you will need at least a JAVA 2 Runtime environment. You will get one here (SUN Mircorsystems).
Installation: Install olh-XX.prc (where XX is "en" or "de") and logo-bw.pdb or logo-color.pdb on your palm.
Usage: - Start your Hackmaster (or compatible) program and select Open Logo Hack for configuration. You will see a sceen like the sceenshot above.
- Select the time how long the bitmap will be shown on startup.
- Choose a bitmap from the list or select Cyclic change to cycle through the available bitmaps.
- Use the Test-Button the see the bitmaps.
- Use the About Logo DB-Button the see the info about the logo database supplied by the database autor.
- Press the OK-Button to finish configuration.
- Activate Open Logo Hack and turn your Palm off and on. You should see the selected bitmap for a short time.
Available Logo Databases: GNU Collection  ImagerX Logo's@freewarepalm.com
Contributions welcome
Database Creator: Creator Screenshot There is a Database Creator tool which is implemented in Java using Swing Classes. Click here or on the small image on the left side to see the details.
If you have installed PilRC you can use this program to create the database (b/w, grayscale and color images), too. Simply create a resource file like this.
To extract bitmaps from other .prc or .pdb files you can use now the creator tool.
Please respect copyrights.
History:
24 Aug 2001 Version 1.7 Bugfix Hack: For details see file "ChangeLog"
New Feature: 16 bit C O L O R support
New Feature: Creator can import imagerX .pdb files
27 July 2001 Version 1.6 Bugfix: For details see file "ChangeLog"
14 July 2001 Version 1.5 New Feature: C O L O R support for Hack and creator tool.
Bugfix: For details see file "ChangeLog"
4 July 2001 Version 1.4 Bugfixes: For details see file "ChangeLog"
New Feature: Database comment added
28 June 2001 Version 1.3 Bugfixes: For details see file "ChangeLog"
13 June 2001 Version 1.2 Improvements of creator tool. Can read .pdb and .prc files to extract images
5 May 2001 Version 1.1 Small typo corrections
3 May 2001 Version 1.0 First public release
A note on version numbers
Each package has a version number and each component (program) has it's own version number.The version number consists of a major and minor number.
The minor number will change for bugfixes or new features. The major number will change when the software is no longer compatible to the previous version, e.g. change of database layout.
Development:
Sourceforge Logo
Project Summary
Files
CVS Web Currently unused
References: ACME Labs (Java Classes),
HtmlLayout (Java Classes)
MakeDocJ (Jeffrey A. Krzysztow)
Icons Copyright(C) 1998 by Dean S. Jones
Links: Palm Open Source
freewarepalm.com freewarepalm.net
Open Logo Hack at PalmGear.com
Open Logo Hack at PalmPie. A Korean Software Listing. I hope the description of Open Logo Hack is correct :-)

This page was updated on xx Aug 2001