473,466 Members | 1,376 Online
Bytes | Software Development & Data Engineering Community
Create Post

Home Posts Topics Members FAQ

Socket.ReceiveFrom(): why is EndPoint a ref parameter?

Why is the parameter remoteEP of the function Socket.ReceiveFrom() a
ref parameter and not an out parameter?

http://msdn2.microsoft.com/en-us/library/wdfskwcy.aspx

public int ReceiveFrom (
byte[] buffer,
ref EndPoint remoteEP
)

I think it should be a out parameter, because the function doesn't use
the value. It only puts information about the remote end in this
class. In most examples the EndPoint is initialised like this:
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);

But this doesn't do anything (right?). I think it is only used to keep
the compiler happy.

Sep 14 '07 #1
0 1481

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
by: 0k | last post by:
Hi everyone, I am trying to write a small app that sends multicast udp packets using a socket object. I have more than one NIC on my PC and the following code works OK only if I disable all the...
1
by: Rolln_Thndr | last post by:
I'm vey new to network programing and have a few rather fundemental questions. I'm creating a very basic UDP proxy server and having a few issues regarding the sockets. Is it possible to change...
5
by: Terry | last post by:
It's my understanding of UDP sockets that if there is a thread blocked on a "recvFrom()" call and other thread sends a UDP packet to some address, that if the machine on the other end isn't up,...
10
by: Jim H | last post by:
I have a UDP socket that sends out a request on a multicast socket and waits for a response. This client is not listening on a multicast IP but the local IP. The server (UNIX) responds to the...
1
by: Bernd | last post by:
Hello, i have a problem with my network code. What i want to do is, send an UDP-packet and check if i get an icmp-reply type 3 (dest. unreachable). the code looks like that so far: .. ..
1
by: Nuno Magalhaes | last post by:
Does the function below returns an UDP packet, for example, from the local machine? Why does it give me an error: "The best overloaded method match for ReceiveFrom... has some invalid arguments"....
0
by: jkhan | last post by:
Hi! I have problem which I shown in title and below as well. I have a Form name as Cancelation. The clientThread2() method is called on Form Load if I Close the Form and want to reload then the...
1
by: ssherm01 | last post by:
I'm using MS VS C++ .NET. I've written a multicast test utility that can send IGMP packets for a user specified group address. As well, it can send and receive UDP packets for a specified...
0
by: Johan | last post by:
Why is the parameter remoteEP of the function Socket.ReceiveFrom() a ref parameter and not an out parameter? http://msdn2.microsoft.com/en-us/library/wdfskwcy.aspx public int ReceiveFrom (...
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
1
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
0
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new...
0
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and...
0
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The...
0
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated ...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.