MVI-ADMNET
♦
'C' Programmable
WATTCP API Functions
Ethernet Module
Page 56 of 90
ProSoft Technology, Inc.
December 13, 2006
udp_open_fast
Syntax:
int udp_open_fast( 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 UDP socket connection to a host machine using
parameters passed to it. For this function, there is no wait to resolve the IP
address that passes the function.
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 a longword-formatted variable.
Return Value:
Connection cannot be made
>0
Connection is made
Example:
udp_Socket *socket;
. . .
if(udp_open_fast(socket, 0, resolve("192.168.0.1"), 5656, NULL))
{
printf("Open Successfully\n");
}
See Also:
resolve
