Agilent Technologies E8257C - Page 86

80 Chapter 2
Programming Examples
LAN Programming Examples
/* Tell the user that we couldn't find a useable */
/* winsock.dll. */
fprintf(stderr, "Cannot initialize Winsock 1.1.\n");
return -1;
}
return 0;
}
int close_winsock(void)
{
WSACleanup();
return 0;
}
#endif /* WINSOCK */
/***************************************************************************
*
> $Function: openSocket$
*
* $Description: open a TCP/IP socket connection to the instrument $
*
* $Parameters: $
* (const char *) hostname . . . . Network name of instrument.
* This can be in dotted decimal notation.
* (int) portNumber . . . . . . . The TCP/IP port to talk to.
* Use 7777 for the SCPI port.
*
* $Return: (int) . . . . . . . . A file descriptor similar to open(1).$
*
* $Errors: returns -1 if anything goes wrong $