Control external devices with serial interface - use Serial Port AX Control.
Serial Port AX Control is a powerful ActiveX component that can be used to simplify communication with external devices on rs232 connection. This includes modems, bar code readers, PBX or any other devices that have a serial interface. Serial Port AX Control 2.0 introduces an impressive number of new properties for detailed setting of serial port, numerous new methods and events to control serial port state changes. Includes examples for Microsoft VC++ and Microsoft Visual Basic. This professional Serial Port component is compatible with Microsoft Windows 95/98/NT/ME/2000 & XP, Microsoft Visual Basic 5-7, Microsoft Visual C++ 5-7, Inprise/Borland Delphi 3-7, Inprise/Borland C++ Builder 3-6 and .NET technology.

Communicate with external devices

Serial Port ActiveX Control is designed to communicate with external devices on RS232/422/485 connection, such as modems, bar code readers, PBX, medical instruments, IrDA, Bluetooth and USB serial devices and so on.
control serial port
Fully control serial port activity

Our Serial Port component features a variety of events, methods and properties to let you fully track serial port activity. You will see when a port was opened or closed, which data was sent or received and so on immediately. You can change serial port timeouts, lice and handflow control, line signals and special characters directly from your application.
manage serial port
Manage serial port signal lines

All hardware signal lines (DTR/DSR, RTS/CTS, RING, ERROR, DCD, etc.) are fully supported. you can free download Serial Port ActiveX Control 3.0.0.143 now.