GPSLIB v1.03a An SDK to add GPS support to your Windows applications (Obsolete)

Features

• Can be used by any development environment which supports calling Windows DLLs including VB, VBA, C, C++, Fortran and Delphi.
• Fully supports the UNICODE programming model.
• Provides a control panel applet which is used to add, configure and remove GPS receivers on the client's computer.
• Simple API which is similar to function calls in the Win32 SDK API, meaning that it should be familiar to Windows developers.
• Full source code is provided to allow you to step into the GPSLIB source code while debugging.

The enclosed zip file contains the GPSLIB source code, demo programs and online documentation.  You will need Visual C++ 5 or later to build the DLLs, control panel applets and exes as this distribution does not include any binary files. This is to help keep the download size to an absolute minimum (77k).

Shareware Notice

GPSLIB is shareware and this trial version is a fully functional evaluation copy. This means that you are free to evaluate GPSLIB for up to 30 days. After this period if you are still using GPSLIB and/or wish to include it in a project of yours, then you are legally obliged to register GPSLIB with the author. Registration will entitle you to comprehensive email support from the author. The cost is $20 US dollars. I do not support online registration for this product yet so you must register via normal post. Remember to include your email address in your letter so that I can quickly confirm receipt of your registration. Payment should be made out to PJ Naughter and sent to:

The registration fee is very small and its a great incentive for me to keep improving GPSLIB. Once I have received the registration you are entitled to unlimited email support for GPSLIB.

Pre-Built Binaries

For those developers who want to use GPSLIB but do not have Visual C++ to hand to allow you to build the binaries, this zip file contains pre-built ASCII release versions to help you get started using GPSLIB right away

Updates

v1.0 (13 January 1998)

• Initial Release to the public.

V1.01 (20 January 1998)

• A number of problems were discovered when GPSLIB was being used in a UNICODE build (i.e it didn't work <g>). These problems have now been fixed.
• Mak file now includes all the possible build options for all the GPSLIB components.
• Mak file no longer hard codes output to "d:\winnt\system32". (This was due to the way I have my development system set up).
• Some of the other options in the mak file such as output directories have been tidied up
• Now includes ASCII release binaries in distribution.
• Minor updates to the documentation.

V1.02 (26 August 1998)

• Small change to stdafx.h to include afxcview.h in gps32exe
• The GpsShowControlPanel function now actually works
• Minor tweaks to the GPS Mak files
• Removed a number of unused symbols
• Change ID of a number of GPS32EXE menu items to avoid conflict with new VC 6 defines.
• Updated all Version Infos to 1.02
• Removed a level 4 warning from the Test app.
• Removed unused toolbar from GPS CPL file
• GPS cpl file now uses standard F2 accelerator for Rename
• GPS32EXE toolbar is now shown flat
• Number of extra TRACE statements have been added to aid in debugging.

V1.03 (13 June 1999)

• Fixed a problem with the calling convention of the exported functions in the DLL. This was discovered when being called from Visual Basic. Because of this change the dll you must link to now is called gps103(u).dll.
• Now ships with a gps.bas file which allows you to start using GPSLIB straight away.
• Also includes a small VB 6 project to test some of the GPS functions.
• Updated all copyrights and version info strings.
• Updated text in the about dialog for GPSLIB

16 June 1999

• Pre-Built binaries are now available for people who do not have Visual C++ installed.

21 June 1999

• Extended VB sample which ships with GPSLIB.
• Updated gps.bas file which was previously causing a crash when being used by VB.

27 September 2001

• Fixed a problem where the background serial port thread caused heavy CPU utilization.
• Updated the project settings so that all binaries get build to the Bin directory and all Lib files get created in a Lib directory
• Updated the version info's in all the binaries
• Updated the copyright message in the code modules

21 June 2001

• Please note that this SDK has been surplanted by the new GPSCom library from the author. Please use GPSCom instead of GPSLib in all new developments.

v1.03a (21 August 2002)

• Fixed a synchronisation problem between the worker thread and the GpsGetPosition method. Thanks to Bill Oatman for spotting this problem.