• Pure C++ class library with an arsenal of over 460 public methods in the API gives you the industry’s most extensive shot at both rapid application development and extending or customizing the library for your needs
• Supports Microsoft Windows 3.1x, NT 4, 9x, Me, XP, Server 2003, Win32s, MS-DOS, NASI for Novell NACS Server, DESQview, Borland PowerPack™, Tenberry DOS/4G™, and Phar Lap TNT™ DOS extenders (Note: All development must be done on Win32 platform; If you target DOS Or Extended DOS, you will need either Borland C++ 5.02 (Not C++Builder!) Or Microsoft Visual C++ 1.52. Contact us If you require either of these compilers because they are Not sold Or supported by either Microsoft or Borland International. We can help.
• By special request, registered users may obtain a set of libraries and DLLs for Watcom C++ 10.0. We do not include these with the retail product because Watcom C++ Is currently available only from Open Watcom; we cannot support any Open Source compiler; If we Do send you the libraries, it will be on an "as-is" basis. The libraries were compiled With Watcom C++ as it was produced by Watcom. We have numerous satisfied customers using the libraries For Watcom.

Face it: Microsoft APIs only scratch the surface of what a serial port can Do. For over 20 years, Greenleaf CommLib and Comm++ have taken on the tough stuff involved in managing ports, transferring files, And doing terminal emulation. We've a world-class reputation for excellence and now our Greenleaf CommX product adds the ease of ActiveX controls to the product lineup. If you prefer C++, Comm++ has the most features. If you prefer C, take a look at CommLib--it's rock-solid. If you work in VB, consider CommX. Yes, you can use CommLib Or Comm++ in environments other than C/C++, but the documentation For CommX Is slanted heavily towards the Visual Basic / Delphi world.

This class library provides powerful tools for all aspects of asynchronous comm programming for all major PC-based platforms. Combine file transfers with Hayes modem controls, add ANSI, VT100, VT52, or "glass Teletype" terminal emulation, select an appropriate screen driver and a platform driver

You can drive any number of simultaneous ports on standard or intelligent multiport boards!
"any number" means exactly what it says. The real-world number of simultaneously open and busy serial ports is not limited by Comm++. The number of ports you can use depends upon the hardware, total processor loading (including whatever other software is running), and other factors. While there are, For convienence, some port names such as "COM1" -- "COM35," you can use any number you wish in your code.

Select XON/XOFF, RTS/CTS, or DSR/DTR handshaking, along with powerful file transfer protocols!

You can select screen drivers and add onto the base classes yourself to create entirely new communications functionality for your applications! Start with Greenleaf Comm++, end on time, within budget!

#include <stdio.h>
#include "compplib.hpp"

main( void )
{
int c;
GFI8250 sio( COM1 );
GFSerial cp( &sio );
  for ( ; ; ) {
    if ( gfkbhit() ) {
      c = getkey();
        if ( c == ESC )
          return;
        else {
          cp << c;     // Output keystroke to port.
          cp >> c;     // Get character from port if any
          if ( c != GF_TIMEOUT )
            printf( "%c", c );   // display it somewhere
          else
            return;
        }
    }
  }
}

• Extensive error code system plus easily built debug library versions smooth application development
• Baud rates to 115,200
• Number of simultaneous ports limited only by hardware
• Classes designed For extensibility With minimal overhead

• Windows 95, 98, 98SE, ME, NT 4.0, 2000, XP, Server 2003
• MS-DOS (Use ONLY Microsoft Visual C++ 1.52 or Borland C++ 5.02)
• 16- and 32-bit Extended DOS (Use ONLY Microsoft Visual C++ 1.52 or Borland C++ 5.02)
• Windows 3.1x, Windows for Workgroups 3.11 (Unsup) (Use ONLY Microsoft Visual C++ 1.52 or Borland C++ 5.02)
• Novell NASI (Unsup)

• COM1..COM4 (ISA / EISA), or COM1..COM8 (MCA systems)
• Digi DigiCHANNEL™ non-intelligent multiport board support (MS-DOS)
• Intelligent Digi, Arnet, & Star Gate multiport board support
• Classes for BIOS and Extended BIOS support (MS-DOS)
• Comm++ fully supports 8250, 16550, 16650, 16750 and compatible chips. It also supports many brands and models of intelligent and non-intelligent multiport communications hardware
• Maximum baud rate is hardware dependent; Comm++ itself is capable of speeds up to 921.6 Kbps.

• Baud rates to 115,200 using standard 16550 UART; up to 921,600 with 16750 and compatible chips.
• Odd, Even, No parity, plus Mark (Stick) and Space (Stick) parity
• 5, 6, 7, or 8 data bits
• 1, 1 1/2, or 2 stop bits (1.5 stop bits only With 5 data bits)

• Comprehensive error code return system, so if something breaks you can easily determine the locus and cause
• Lots of examples in source code for various platforms
• Free technical support from Greenleaf Software Inc.

• In Win32, If Windows can see the port, chances are Comm++ can drive it, wherever it may be.
• Non-intelligent board support available For Select boards:
• Supports many non-intelligent multi-port boards including DigiBoard, Arnet, Star Gate, Contec, Quatech, Fastcom, AST, BocaBoard, SeaLevel, and Hostess
• Drives Digi, Arnet, B&B, Contec, And other intelligent multi-port boards. Use EIA-422 Or EIA-485 interface on some boards.

• XModem, including CRC and Checksum, 1K and G variants
• YModem, plus YModem-G, with subdirectory recursion, strip path, and other options
• ZModem (16- or 32-bit CRC), with crash-recovery, subdirectory recursion, sliding window, and file management options
• Kermit file transfer protocol with RLE compression, 8-bit prefixing, and subdirectory recursion
• CompuServe B+ file transfer with checksum, 16- or 32-bit CRC, strip path, and resume download options
• ASCII file transfer, with subdirectory recursion (send multiple files) and line feed strip options

• Windows WM_COMMNOTIFY event notification
• Win32 Wait for Comm Event capabilities
• If you REALLY need extensive and versatile events, we suggest you take a look at Greenleaf CommX which provides many events unavailable elsewhere.

• Windows Help system - includes all classes, functions, And examples.
• Many compilable examples for every class and method.

• Current version Is 3.07
• Downloadable updates For downlevel users available on our web site.