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All Articles

Client-server

[JAVA] server/client program with multiple clients. Clients are blocking each other server-side.

24 Mar 2017 by User 13050660

Hi,I'm making a TCP Server/Client chat program. I have two clients. The problem I'm having is that I can send one message from one of the clients, but then consecutive messages from the same client get sent to the server, but the server doesn't pass them on until I send a message from the...

A Working TCP Client and Server with SSL

24 Sep 2018 by David Maw

A working example of a Windows client and server using TLS over TCP.

Add a client to a client class (new list(of classforclient))

28 Feb 2019 by Gyzmo

My application is a reverse to the normal "client Server" communications in that it needs to work in the reverse method. The normal client/server system works where the client will initiate a call to the server the server then responds. I need to have the server initiate the call to the client...

Add a client to a client class (new list(of classforclient))

28 Feb 2019 by Patrice T

Quote: My application is a reverse to the normal "client Server" communications in that it needs to work in the reverse method. ... I should explain, the clients will be industrial print engines where the operator will turn them on and then run the software on a PC to communicate with them. The...

ASP MVC Export/download Grid contents in different file formats csv,excel,pdf

12 Feb 2016 by lakhdarr

Different ways to export a grid contents to different file formats csv, excel, pdf using ASP MVC

Best methodology for client/server in the same program

7 Apr 2022 by RHBrooks

I'm looking for guidance for the best methodology for the following scenario; I want to send messages from multiple locations (classes) and threads within the main program. I need a class or DLL that can receive these messages, act upon them,...

Best methodology for client/server in the same program

7 Apr 2022 by Greg Utas

I develop in C++, not C#, so I don't know if there's any C#-specific thing that you could use. So what if message queueing is "old"? Queueing messages on threads is a common approach within an .exe. You could also use UDP if your messages...

Best methodology for client/server in the same program

7 Apr 2022 by Mike Hankey

You may want to look at EventAggregator[^]. It's a publish/subscribe framework that I use in a WPF application I'm developing but it may be available in other frameworks also.

Better way to download [large sized] data from single server to multiple clients

6 Dec 2016 by Member 12369145

Hi,I am new to this kind of asking question.First let me explain about how application works.This application has single server and multiple clients (more than 750 to 1000 clients), here client refers to computer. When we place a file(approximately 2 to 3 GB) in server and informs...

Better way to download [large sized] data from single server to multiple clients

6 Dec 2016 by KarstenK

Best is some distributed download to minimize duration. Subservers or Torrents in some tree strucure should be the best architecture.Try your luck by exploring the libtorrent examples. It shouldnt be to hard to find the problems.

Bi-directional client server communication using tcp/ip?

20 Dec 2015 by venkat28vk

Hi,I have developed a server and client code using tcp/ip protocol, which enables the client to send data to server and the same data is received from server to client. I would like to know how to keep the client open all the time, same like as server. I should not keep executing the...

Bi-directional client server communication using tcp/ip?

18 Dec 2015 by Garth J Lancaster

surely that depends on YOU - what you you want/need to achieve in the client ? (we dont know your requirements because you havnt stated any)instead of str_echo(ls); you could do for (; ; ){ str_echo(ls); sleep(60 * 1000); // for example to sleep 1 minute between loops...

C# TCP/IP client is connected to internet or not

18 Feb 2022 by payam purchi

can i get client is offline or online in new thread in server side ? it's mean when a client connected to my server i want check in new thread that The client is still online or not . What I have tried: NetworkStream client.getstram...

Call localhost service from javascript via HTTPS hosted web application

4 Jan 2016 by Mr. Mahesh Patel

Hello Expert,I have deployed one WCF self-hosted service on Client PC and URL looks like - "http://localhost:[port]/myservice"I have deployed one web application on server with SSL and url looks like - "httpS://abc.com/index.html"Now I am trying to call the localhost service from...

ClickOnce Deployment without FrontPage Server Extensions

6 Apr 2016 by Zahid Khan Kakar

Deploy your Windows Application in Online Mode

Client and server can not exchange data because both get “stuck”

22 Aug 2016 by MyOldAccount

INTRODUCTION:I have studied the MSDN examples for blocking TCP server[^] and blocking TCP client[^].I wanted to try something simple, in view of modifying those examples to create simple chat application.I have tried to implement the following, for a start:send message from...

Client and server can not exchange data because both get “stuck”

22 Aug 2016 by Jochen Arndt

You are using blocking sockets. When receiving and there are no more data, the recv function will block (not return) until new data are received or the connection is closed (as triggered with your third try).The simplest method to avoid this is using some kind of indication that all current...

Communication between clients and server in different network in C#

9 Sep 2020 by Member 14934537

I have a project which a server will communicate with multiclients. The program is working fine when sever and clients connect in same network (same ip address and same port). However, I need to change my server ip address every single time I...

Communication between clients and server in different network in C#

9 Sep 2020 by Chris Copeland

If you're switching between networks then you can absolutely expect your IP address to be continually changing. Traditionally a server wouldn't be moving around, it would sit on a network somewhere statically and the network provider can provide...

Communication between two client with one server in javafx

17 Jul 2018 by Drekel

am trying to communicate between two client frequently (ClientA. Server. ClientB) If ClientA send a message it goes to server then server sends it back to ClientA instead of sending that message to ClientB. same thing with ClientB both client can't communicate with each other but can connect to...

Cors enabled in WCF but not working on live server.

8 May 2019 by nrjtrn

I am hitting the post request to WCF service end point from my angular 7 application. On localhost, the hit goes to WCF server but when i deploy the WCF application on server then Method 405 not allowed Cors preflight error is showing in my console. Even cors are enabled in WCF application. ...

Could not connect to net.tcp://localhost:1234

15 Oct 2015 by amir.nazarizadeh

HiI have a simple chat program in c# with a client and a serverwhen I start the program it give me warning with this message:Additional information: Could not connect to net.tcp://localhost:1234/Chat/ChatService. The connection attempt lasted for a time span of 00:00:02.0986369. TCP...

Could not connect to net.tcp://localhost:1234

15 Oct 2015 by Patrice T

Quote:what's wrong?The error message tells you What is the problemQuote:Could not connect to net.tcp://localhost:1234/Chat/ChatService.and whyQuote:No connection could be made because the target machine actively refused it 127.0.0.1:1234.Do you have a firewall ?Have you allowed...

Could someone help me please with some code?

16 Jul 2016 by Member 12638643

import java.net.Socket;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.IOException;/** * A ChatConnection implements a connection between the chat server and a * single chat client. The connection will run as a separate Thread. */public...

Could someone help me please with some code?

16 Jul 2016 by OriginalGriff

What you have posted is a framework that presumably your tutor provided - it's full of helpful bits such as:// Get the input stream from our socket/*** Enter your code Here */which are telling you exactly what to do, and where to do it.This is your homework: you are expected to think...

Create android app for sending records to client app

5 Oct 2017 by Baburc

Hai I am creating an app which has main app and client app. In my app I want to add Contact numbers. When I click on a contact second windows appears where I can input some details. After that when I click send button the records should send to that phone number of client app. I have...

Create android app for sending records to client app

5 Jun 2017 by David Crow

What exactly are you having trouble with: adding contact numbers, clicking on an item (button), populating a database, communicating with another device? Without more information, I'd say you are wanting to send a vCard from one device to another. Is that even close?

Create android app for sending records to client app

5 Oct 2017 by nawazish12khan

Step1: Setup Web Server where you store your Data using webservices. Step2: You gave registration option to every client by ther mobile number (that is your unique ID) and store data on web server database in tblRegistration. Step3: When any client send msg save data on server with detail...

Create WCF client server and consume services

26 Apr 2016 by Member 12478311

Can anyone explain clearly how to create WCF Service and also how to create client to consume the created WCF Service..?What I have tried:I am beginner and I need help...Thank You..!

Create WCF client server and consume services

26 Apr 2016 by CHill60

This article is a walkthrough designed for beginners...Walkthrough: Creating a simple WCF Service in Windows Forms[^]It includes steps on testing it and accessing it

Crystal report is not working on client PC after installation

21 Jan 2019 by Member 14010024

I have a windows 10 64 bit and i installed a visual studio 2015 and crystal report ver 13.0.23 for visual studio 2015 and crysatl Report run time 64 bit . but when make a setup package on client computer the program is running but the report when displayed make an error the type initiallizer...

Crystal report is not working on client PC after installation

10 May 2020 by Jassom

try this: Install (CRRuntime_32bit_13_0_4.msi) on client machine. It worked for me, and it's good if you setup your App as 32bit.

ERROR: additional information: only one usage of each socket address (protocol/network address/port) is normally permitted

13 May 2016 by Arthi 12521509

I'am working on WinSock Sockets Programming with C#. I'm basically making a Client/Server application sending an data between client and the server. I'm using winsock control in c#.I get the error when I try sending an data between client and the server. My server listens for connections on...

ERROR: additional information: only one usage of each socket address (protocol/network address/port) is normally permitted

13 May 2016 by George Jonsson

You can find pretty good examples on MSDN: Socket Code Examples[^]You will find examples for both synchronous and asynchronous servers and clients.Pretty soon you will probably find that you would like to make the server part asynchronous.Note: Instead of using your own variable to...

Extendable TCP Client/Server Application Framework

4 May 2019 by Michael Janulaitis

Provides an introduction to the open source client/server DotNetOpenServer SDK project for Android, iOS, Windows Phone, Windows, Mac and Java Platforms

Generate token and use any httpclient to consume rest api

29 Mar 2022 by salam_verdim_alana_panyatkasi_olana

Hi there, I am writing service consume where my consume service make the get request to given endpoint, but there is a problem, which I can not understand that how can I solve it? following link you can read documentation which I develop right...

Get / set the mouse position of server when clicking on the server image in client's picturebox C#

24 Feb 2017 by CuriousC#

Hello,I'm writing a remote client/server application in C# Windows.Forms,I have a client that shows the "stream" in pictures of the running server in a picturebox located on the client form.When i click on the image viewed in the picturebox on client side, i want it to click on that...

Get / set the mouse position of server when clicking on the server image in client's picturebox C#

24 Feb 2017 by CuriousC#

Well i got a solution: the code i used for the mouse click did not work correctly, i wrote something easy to simulate the mouseclick and now it works perfect.Thanks for the effort Philippe Mori.

How do I call a method using queryparam in java?

4 Apr 2021 by Member 15127345

I have a client-server web app using Java and JavaScript. I would like to call a path "delete" from a method deleteBook using queryParam. I've searched the Internet, but I'm not sure how to do this. The called method was supposed to delete a book...

How do I dynamically create client sockets?

18 Aug 2021 by Member 8677306

I'm working on a C# winforms application that would simulate n-number of client socket connections to an asynchronous socket server. The form would have a NumericUpDown control where the user could select from 1 to 20 clients. And when executed...

How do I dynamically create client sockets?

18 Aug 2021 by OriginalGriff

Just create a loop, and inside the loop create a separate thread or task for each client. In the thread code, create the socket, connect it, and do whatever you have to with it. This is probably a good starting place as it allows progress...

How do I have one client receive data from multiple servers asynchronously?

16 Aug 2021 by Member 8677306

I'm writing an application in C# where I need to communicate with appx 15 TCP/IP based barcode scanners. The scanners are set up as servers. I need a client that will listen and receive data from the servers as barcodes are scanned. There will...

How do I have one client receive data from multiple servers asynchronously?

16 Aug 2021 by Greg Utas

I agree with Richard's suggestion. What you're calling a client is, in effect, a server, because it is presumably providing a service, such as updating a database. Even if it sends no application-level response to the scanners, the fact that TCP...

How do I pass data around a chain of class libraries in C#

4 Sep 2021 by Eugene Rutsito

I'm developing a server-side project in c#. The project is like so, it has 'Admin', 'Security', and 'Communicator' which are all independent projects (class libraries). The Admin module handles all the client-side requests. If the request comes...

web_application

How do I pass data around a chain of class libraries in C#

4 Sep 2021 by OriginalGriff

Surely, Admin references Security, which has a report-back mechanism? And Security references Communicator which should report back to it? OOPs principles means that Admin "knows about" Security (because it has to to do it's job) but Security...

web_application

How do I retrieve remote client's name

25 Apr 2018 by vivek2414

I am trying to write a C++ DLL that would run on VMWare server and would return the client (terminal user) Name and IP Address. I am using WTSQuerySessionInformation to fetch the ClientName & IP Address. Is WTSQuerySessionInformation the right function, or is there a different way to solve...

server-management

How do I send data to specific client from another client with a server in middle[C#]

4 Dec 2022 by Member 14623639

I have searched everywhere but couldn't find as they are all answering to send message to all clients. What I want to achieve is multiple clients request to server to request data from another client and other client sends data to server telling...

How do I set bitmap on xamarin imageview from a decoded byte bitmap from a windows server, without half loading images/flickering

27 May 2017 by tech-helper

Have you tried turning it off and on again?

How to broadcast a message to client/server?

23 Apr 2017 by bling

Please disregard this solution.

multi-threading

How to communicate between external application's soap client and soapui tool

15 Jun 2021 by Vinay K M 2021

I have a scenario, where in an external application's client will be sending a soap message to SoapUI tool and the SoapUI tool should send a automated response message(multiple responses) back to the external application. Can this auto response...

How to establish a connection between a client and server on the internet with dynamic external ip-address ? c#

25 Feb 2016 by Member 11894977

I have a server with dynamic external IP-address. How to create a connection on the internet ? After that, the client, knowing external IP-address, has to connect.What I have tried:UPnPNAT upnpnat = new UPnPNAT(); Socket s = new Socket(AddressFamily.InterNetwork,...

How to establish a connection between a client and server on the internet with dynamic external ip-address ? c#

25 Feb 2016 by ZurdoDev

The client will have to know the address. I suggest you change your dynamic one for a static one. Otherwise, put the ip address in a config file and then update that each time it changes so you don't have to recompile the code every time.

How to establish a connection between a client and server on the internet with dynamic external ip-address ? c#

25 Feb 2016 by Jochen Arndt

Besides the solution posted by Ryan you can use a Dynamic DNS - Wikipedia, the free encyclopedia[^] service. Most internet routers and modems provide an option to pass their dynamic IP address to such a service when it has changed.

How to Get Data from MySQL (According to Date Picker) and send it to tcp server in Django

8 Dec 2015 by Muhammad Azym

I do apologize if the question is weird.I am developing a web framework in django. What I need to do is I want to get data from tables using datetime picker and need to send it to socket server over the network using tcp/ip. I am able to display data on the webpage but on the second page I...

How to Get Data from MySQL (According to Date Picker) and send it to tcp server in Django

13 Jan 2016 by DeDenker

For non blocking TCP communication look at Gevent module

How to get text as well as images using sockets?

23 Aug 2019 by Muhammad Afaq Riaz

I am working with sockets. I have written code for python server which will receive data from a c# client and will display it in the console. The data may be an image or a text. Now problem is that how to differentiate between image and text because text must be displayed in the console and...

How to get text as well as images using sockets?

23 Aug 2019 by Richard MacCutchan

You need to add some extra data to each message that identifies what is being sent - text or image.

How to load blob of pdf in mysql to vb. Net

18 Jun 2019 by Member 14505231

i have a project that use pdf, client must can read the pdf in database server.. or can i upload just string (the directory of pdf) to database in computer server, then client just read the directory in the database, but how? What I have tried: Sub tampilpdf() connDB() Try...

How to load blob of pdf in mysql to vb. Net

18 Jun 2019 by Maciej Los

Check this: MySQL :: MySQL Connector/NET Developer Guide :: 5.9.2 Writing a File to the Database[^] MySQL :: MySQL Connector/NET Developer Guide :: 5.9.3 Reading a BLOB from the Database to a File on Disk[^]

How to make TCP client server connection

29 Apr 2016 by Member 12478311

I created Client(Windows) and Server(Console...and trying to make connection between these two and send message from client to server.The following is the Error:InvalidOperationException was unhandled.An unhandled exception of type 'System.InvalidOperationException' occurred in...

How to make TCP client server connection

29 Apr 2016 by George Jonsson

There are some good "getting-started" examples on MSDN.Socket Code Examples[^]It is better that you start looking there and kind of forget about the code you have written so far.Especially look in the the Asynchronous Server Socket Example.(This is what Sergey is talking about)The...

How to make this application send multiple images at a time to server

10 Sep 2017 by Richard MacCutchan

We told you the answer yesterday. Please do not repost the same question.

image-conversion

How to open new window on another application..?

10 May 2016 by Member 12478311

I have 2 Windows Forms Applications with one form in each application.now I want to open form1 in application2 from form1 in application1(I am trying with button click...)What I have tried:Created 2 Windows Forms Application

How to open new window on another application..?

10 May 2016 by Sergey Alexandrovich Kryukov

Don't. Processes are isolated and should remain isolated. It's possible to achieve on the base of Windows messages, but this approach is too Windows-specific, contradicts to more important principles of OS architecture is is generally so bad due to other reasons, so I don't even want to discuss...

How to prevent form freezing (cannot receive incoming data) - VB.NET ask

25 Feb 2017 by DiamondKid

I am developing a two-player Quiz bee game LAN-Based. The players takes turn one at a time. A player will click a button to pick a question. On the first two turns, sending and receiving of data are working but on the third turn the other player didn't receive the incoming data.Anyone can...

How to prevent form freezing (cannot receive incoming data) - VB.NET ask

25 Feb 2017 by Graeme_Grant

Apps that appear "locked up" is usually an indication that a long running task is active on the UI thread blocking the UI message pipe. If you are indeed using Sam's code, then the UDP tasks are on a sperate thread. To Debug this, when there is a long pause/"app appears locked" event, hit...

how to receive some records from several clients in delphi with flow control using indy ?

8 Nov 2015 by raypetriut

hello i want to make an application with delphi in server using indy and this application can receive some data (records) from client sides . my questions are : 1 - how can i make an application in server side it can receive some data (records) from several clients using indy please i need...

How to send an multiple value with post request using spring boot webclient?

27 Oct 2021 by User 15041314

As you can see, in my service layer this method send post request like client to the server using Spring Boot WebClient framework, but I have getting a problem, which as you can see my method accept 4 params, which you see and I want to send...

I have created a LAN chat application on WPF, and it works fine on my computer.but I dont know how to use this on two different computers.

16 Nov 2017 by Member 13496560

My projects works fine using local host loop back 127.0.0.1 on my computer only. but how to use this on two different computers? and how to do the configuration settings for these computers.And how to connect these computers with each other,i means is there necessary to have a router or the...

I have created a LAN chat application on WPF, and it works fine on my computer.but I dont know how to use this on two different computers.

15 Nov 2017 by David_Wimbley

Quote: ,i means is there necessary to have a router or the ethernet cable? Im not being sarcastic but I can't tell if this is a real question or a question made out of frustration. But in short, computers have to be connected in some way shape or form in order to communicate with each other....

I want to connect two different computers one as the client and the other as a server by C# code any one help me?

28 Nov 2022 by Member 15680837

I want to connect two different computers one as the client and the other as a server by C# code any one help me? What I have tried: I want to connect two different computers one as the client and the other as a server by C# code any one help me?

I want to connect two different computers one as the client and the other as a server by C# code any one help me?

28 Nov 2022 by CPallini

I would suggest you starting from Use Sockets to send and receive data over TCP - .NET | Microsoft Learn[^].

If a client exit, the server continues to run the clientlistener method. How to solve?

21 Jan 2020 by Csabatom

Server starts up, and client connects, it is multithreaded, and the main point is to broadcast the message, that it got fro the server. However, when a client disconnects(gets forcibly closed), it still tries to run the ClientListener method(underlined) SERVER CODE: using System; using...

If a client exit, the server continues to run the clientlistener method. How to solve?

19 Nov 2019 by RickZeeland

See example here, the client.Close(); must be outside the While loop: TcpListener Class (System.Net.Sockets) | Microsoft Docs[^] With a While loop like this: // Loop to receive all the data sent by the client. while((i = stream.Read(bytes, 0, bytes.Length))!=0) { ...

If a client exit, the server continues to run the clientlistener method. How to solve?

21 Jan 2020 by Doug- VisualBasic VB.NET

When your client disconnects you should get a disconnect event on your server. Use it to terminate the the thread of the client on the server. Then you will not be trying to access it again until it reconnects. However, I am not sure the client disconnect is causing the error. In your while...

Is there a free c# xmpp server ?

6 Jan 2016 by kubibay

Hi,We want to build a mobile chat application. So we will need an xmpp c# host application.Do you have any suggestions? I know agsxmpp-sdk but it is not free.

Is there a free c# xmpp server ?

6 Jan 2016 by CPallini

Do you mean something like jabberd[^]?

Message passing b/w “LAN server only” and “LAN client” on different scenes in unity

15 May 2018 by Member 13130955

Hi, I want to pass message back and forth on client and server which are on different scenes, how can I do that in Unity?** Following is my Scenario:- I have 5 scenes- 1. BaseScene (2) OfflineScene (3) OnlineScene (4) ClientOnline (5) ServerOnline. All these scenes have button having...

Mock & Inject your Service with Moq and Ninject

10 Aug 2016 by Aless Alessio

Design your solution and code your classes as loosely-coupled objects. Learn how to use MOQ and Ninject for mocking your Service and injecting it at runtime with Ninject.

Multiplexing I/O client-server (message exchange)

27 Apr 2017 by GeorgeZv

I stated learning C language and now I'm trying to get deal with WinSockets. I have to write Server and Client application using Multiplexing and non-blocking sockets (in prespective it will be a chat but now I just want to make it finally work with simple message exchange). What I have tried: ...

Multiplexing I/O client-server (message exchange)

27 Apr 2017 by Patrice T

Quote: I also don't understand why I receive a few messages in server and client part (there is a random symbol everytime in client part, don't also understand why). Why? When you don't understand what your code is doing or why it does what it does, the answer is debugger. Use the debugger to...

Multiplexing I/O message transmition (client-server chat)

3 May 2017 by GeorgeZv

Hello everybody, I'm new in C (as in programming) and I'm studying Windows Sockets. I wanna write simple chat between server and 2 clients (perfectly server must send messages for everybody, client only for server) and I stucked with a problem. What I have tried: From **server** part I can't...

My Python program not showing output

7 Apr 2016 by veena nair

I wrote a Python program in python 3.4.3 But it is not showing any output. how can i get outpu please helpWhat I have tried:import socketmysock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)mysock.connect(("www.py4inf.com",80))mysock.send("GET http://www.py4inf.com/code/romeo.txt...

My Python program not showing output

7 Apr 2016 by Richard MacCutchan

if(len(data)

Non-blocking GUI while Serving Blocking External I/O – Blender Python Support

13 Jan 2024 by pravin kumar sinha

Python GUI non-blocking with timer events, 'select' API, Blender example

Performance issues on server / client application

18 Jan 2019 by HobbyProggy

Hi there, to enhance my current Software i wanted to switch the datalogic to a server application that has faster connection to the database and is able to cache data. So far i wrote a working server app and a client that connects to this server. Currently i am experiencing a performance issue...

Performance issues on server / client application

18 Jan 2019 by Rob Philpott

You've got an interesting mix of different types of async code in there! And I can see unguarded use of collection cross-thread etc. But this: while(!_clientStream.DataAvailable) { } looks like a very tight loop, which is likely to get your CPU fan attempting take off. At the very least slap...

Problem to set header with jersey for rest client

18 Oct 2016 by spellsleeper

I tried to upload a document to a document server with Jersey. But curiously I can't set a header value. If I set the value as query param(server supports it) all works fine. But I wan't set it in the header. Here is my Java Code: Client client =ClientBuilder.newClient() ...

Problem with client server using HTTP

5 Mar 2019 by Member 13995616

This is my code for web-server.cpp file #include #include #include #include #include #include #include #include #include #include #include #include ...

Problem with client server using HTTP

4 Mar 2019 by Rick York

Try adjust the code around the call to bind to something like this : fprintf( stdout, "attempting bind to %08X\n", pi->ai_addr ); int rv = bind( sock, p->ai_addr, p->ai_addrlen ); if( rv != 0 ) { close(sock); auto ev = WSAGetLastError(); // or however else you can...

PUB/SUB not working in redis with C# code..

27 Feb 2020 by Kiran Patel

Hello, i am trying to publish data to Redis as written code below, but don't know why i didn't get data to client side.. As even i am getting data to client when i am Publishing data with same channel-name from CLI or Command window in Redis...

PUB/SUB not working in redis with C# code..

27 Feb 2020 by Richard MacCutchan

catch (Exception ex) {} That is not going to help you. If an exception occurs you are just ignoring it. At the very least you should show the actual details from the caught exception.

Receive image from byte TCPCLIENT

14 Apr 2017 by Hitmanlima

I send the image to the server, I noticed that it is receiving the image in several packages, I tried to join the buffers, but it is not working, if I put the image in the picturebox without joining the buffers the image is incomplete My project consists of several clients and a server that...

Receive image from byte TCPCLIENT

14 Apr 2017 by Hitmanlima

My solution is: Sending Img Dim netStream As NetworkStream Dim Formatter As IFormatter = New BinaryFormatter() Formatter.Serialize(netStream, img) Receive Img Dim netStream As NetworkStream Dim Formatter As IFormatter = New BinaryFormatter() Dim img As Image =...

receiving Blolbs and save them in a string

3 Sep 2015 by Lalyka

I have this code that will get files on client side and slice the file and send it to server (handler) and there it will append the received slices and append them together and save them in a folder.THIS IS MY QUESTION: what if I want to save the received blobs on server side in a string ? how...

receiving Blolbs and save them in a string

3 Sep 2015 by OriginalGriff

If what you are being sent is binary data, then you can;t directly store it in a string, as a string is a collection of characters - and converting binary data to characters rarely means you can convert them back again (as not all character codes are valid depending on the character set being...

Running Apache Kafka on Windows without Cygwin

10 Jan 2016 by GopalTiwari

It will give information about Installing and Configuring Apache Kafka & Zookeeper for Windows Operating System

Same TCP connection for two protocols

1 Dec 2016 by Chandan_srivastava

I am writing a client server application in C++. These applications talk to each other using TCP sockets. I want to use two application protocols to communicate. One binary and one text based protocol. There are two ways. I can use two connections for each protocol or can use the same connection...

Same TCP connection for two protocols

1 Dec 2016 by Jochen Arndt

If you use a single connection for two protocols you would have strictly speaking only one protocol because your client has to decide which kind of data handling has to be used and this decision is defined by the protocol.If the two protocols are not standard ones but defined by you just...

Send an initial web page on connection

3 Jun 2018 by Bill Colias

I'm designing an embedded web server and want the browser to come up with an initial page upon connection. We've all seen this happen at places like airports, hotels or Starbucks. How can I do the same thing? I can trap for when a DHCP completes, but what should I do then? Should I just send...