>Please if some body can help me to control the serial port:
>
>1) if the serial port is in use or not.
>2) Send and recieve from serial port.
>
>Thanks
>Farmand.

Farmand,

The following MSKB articles will help you start:

MSKB#Q139526 HOWTO: Send to the Serial Port by Using Mscomm32.ocx at http://support.microsoft.com/support/kb/articles/Q139/5/26.asp

MSKB#Q291535 HOWTO: Find Installed Modems with Visual FoxPro at http://support.microsoft.com/support/kb/articles/Q291/5/35.ASP

MSKB#Q154741 HOWTO: Transmit and Receive Binary Data using MSCOMM32 at http://support.microsoft.com/support/kb/articles/Q154/7/41.asp