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 C_ISCOM()

 DESCRIPTION

 C_ISCOM() checks the specified COM port to determine if it is ready
 to send and receive data.

 NOTES

 The C_ISCOM() function checks only the specified COM port for a
 status.  To determine if the device attached to the COM port is
 ready, use the C_ISDEVICE() function.

 SYNTAX

 C_ISCOM(port)

 PARAMETERS

 port (N) is the COM port number (1 = COM1, 2 = COM2, etc.) to check.

 RETURNS

 C_ISCOM() returns true (.T.) if the port is ready, otherwise false (.F.).

 EXAMPLES

 ? c_iscom(1) --> .T.      && COM1 shows it is ready