ProSoft Technology MVI69-ADMNET User Manual
Page 82
WATTCP API Functions
MVI-ADMNET ♦ 'C' Programmable
Developer's Guide
'C' Programmable Application Development Module with Ethernet
Page 82 of 122
ProSoft Technology, Inc.
February 20, 2013
tcp_open
Syntax
int tcp_open( tcp_Socket *sk, word lPort, longword ina, word port,
dataHandler_t datahandler );
Parameters
sk
Pointer to the socket that has been initialized.
lPort
Local port number.
ina
Host IP Address.
port
Host port number.
datahandler
Data Handler. Not used in this version. Use NULL for this parameter.
Description
This function opens a TCP socket connection to a host machine using
parameters passed to it. IPort is an option parameter. Most of the time, IPort can
be set to 0. The API will find an available port number for the socket. ina is a host
IP address passed as a longword. Function resolve can be used to convert an IP
address into longword-formatted variable.
Return Value
Connection cannot be made
>0
Connection is made
Example
tcp_Socket *socket;
. . .
if(tcp_open(socket, 0, resolve("192.168.0.1"), 5656, NULL))
{
printf("Open Successfully\n");
}
See Also
resolve (page 86)