MarshallSoft GPS Component for C/C++ - Version 2.2 MarshallSoft GPS Component C/C++ and .NET toolkit reads and decodes industry standard GPS NMEA 183 navigation sentences from the RS232 serial port as well as computes great circle distances and bearings. Features include: - Supports both 32-bit and 64-bit Windows.- Uses the Windows API for serial port input. No special Windows driver is required.- Runs as a background thread unattended and is fully thread safe.- The most current GPS data is always available on demand.- Includes support functions such as mgcGreatCircle.- Can read any GPS NMEA 183 sentence, extracting each field- Can read and decode GPGGA, GPRMC, GPGLL, GPGSA, GPVTG, GPBOD, GPWPL and GPGSV navigation sentences.- Can graphically display latitude and longitude.