Download MGC4C Programmer`s Manual

1 Introduction
The MarshallSoft GPS Component for C/C++ (MGC4C) library is a toolkit that allows software
developers to quickly develop GPS applications in C/C++, Visual C++, Visual C# and .NET.
The MarshallSoft GPS Component (MGC) is a library of functions providing direct and simple control
of GPS data. A straightforward interface provides the functionality to read and decode standard GPS
(Global Positioning System) NMEA 183 sentences from the RS232 serial port as well as compute great
circle distances and bearings.
This MarshallSoft GPS Component Programmer’s Manual provides information needed to compile
and run programs in a C/C++ environment.
The MarshallSoft GPS Component for C/C++ toolkit supports and has been tested with C/C++,
Microsoft Visual C++, Visual Studio .NET Framework (Visual C++ .NET, C# ,NET), Visual C++
Express, Borland C/C++, Borland Turbo C++ for Windows, Borland C++ Builder, Watcom C/C++,
MinGW C++ and LCC-Win32 C compilers. MGC4C can also be used with most other
C/C++ Windows compilers. Registered users can statically link MGC with their application rather than
using the MGC DLLs.
MGC4C runs under all versions of Windows (Windows 95, Windows 98, Windows ME, Windows 2000,
Windows 2003, Windows NT, Windows XP, Windows 7, Vista and x64). The MarshallSoft GPS
Component SDK DLLs (MGC32.DLL and MGC64.DLL) can also be used from any language (Visual
Basic, VB.NET, Codegear Delphi, Visual FoxPro, COBOL, Xbase++, dBase, Microsoft Office, etc.)
capable of calling the Windows API. Win32 and Win64 DLLs are provided.
MGC4C includes more than 15 C/C++ example programs with full source code demonstrating MGC
functions to read and decode GPS data. Microsoft Foundation Class (MFC) and Borland C++ Builder
(BCB) examples are also included.
Our goal is to provide a robust serial communication component library that you and your customers can
depend upon. A fully functional evaluation version is available. Contact us if you have any questions.
When comparing the MarshallSoft GPS Component Library against our competition, note that:
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MGC4C is a standard Windows DLL (NOT an OCX or ActiveX control) and is much smaller than a
comparable OCX or ActiveX control.
WIN32 and WIN64 DLLs are included.
MGC4C does NOT depend on ActiveX or Microsoft Foundation Class (MFC) libraries or similar
"support" libraries.
MGC is fully threadable.
The MGC functions can be called from applications not capable of using controls.
We also provide a version of the MarshallSoft GPS Component Library for Visual Basic (MGC4VB.
Each version of MGC uses the same DLLs (MGC32.DLL and MGC64.DLL). However, the examples
provided for each version are written for the specified computer language. We also have declaration files
for other programming languages. MarshallSoft provides a separate GPS component for WIN/CE for eVC
(MGC4eVC).
The latest version of the MarshallSoft GPS Component software can be found online at:
http://www.marshallsoft.com/gps-communication-library.htm
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