ProSoft Technology MVI69-ADMNET - Manual (Page 85)

MVI-ADMNET ♦ 'C' Programmable WATTCP API Functions
'C' Programmable Application Development Module with Ethernet Developer's Guide
ProSoft Technology, Inc. Page 85 of 122
February 20, 2013
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 (page 86)