Hello, i want to use some of the great libraries and code snippets, which i found here on CodeProject on a commercial product. If they have a CPOL License, do i have to add a note on my about-dialog (well - i prefer to do that, but my customer doesn't want to have some "legal"-texts in the about-dialog)? Does some part of the license change, if i edit the library? Thank you! Kind regard

Hello, i want to use some of the great libraries and code snippets, which i found here on CodeProject on a commercial product. If they have a CPOL License, do i have to add a note on my about-dialog (well - i prefer to do that, but my customer doesn't want to have some "legal"-texts in the about-dialog)? Does some part of the license change, if i edit the library? Thank you! Kind regard

Hi everyone, i'm just writing on a server-application which contains a few HTTP-Handlers. Now i have a Windows-Client (in future a few other clients) and want now, that only my clients are able to access those ashx-files. Is there a simple way to secure this? Can i put something like a "certificate" in my request of the client or something else? Or should i simple encrypt my content with a asymetric key? What do you think, any ideas? Thank you!

Exactly that is what i want to do! I know, that callibration of that isn't simple and so on, but i want to try it. If it would be easy, it would by uninteresting. So how can i record audio from a microphone and simply invert the signal and put it out over my speakers?

Hello everyone, i wan't to create something like a active noise cancellation system . So i want to record audio with a mic in c# and modify the signal, that i get the "negative" or opposite signal and play that negative signal of the ingoing signal. I've never recorded any audio and don't understand, what i get in such a recorded stream. Do i get simple integer values, which i only need to opposite (value * -1) and write them to another stream and put them through or what do i need to do?

Well.. so for everyone, why i'm using UDP instead of TCP. First point: NAT (I need to make whole punching, because i need a P2P Connection) Second point: Latency (In a few cases, i doesn't need the whole "TCP" Features, i just want to send little messages) My protocol is doing exactly that and can all of kind like check for sequence, check for corrupcy and so on. But... i want the best performance and network bandwith load. So i need to calculate, how many packages i'm able to send, to not get a huge of requests back again.

Because i need to use UDP (that's it!) So... what i've done? I exactly realized that, what you told me. I check the correctness of the package, i check if the previous package is failing (and ask the other client for that package) and to "ii)" because that's why i have a sequential number in each data package. That isn't right, that the sending interval is irrelevant, because if i send data over the internet (behind two NAT) slowly, i get all data, but if i do this very fast, i have a high loss-rate, which i want to avoid. So i need to calculate the "correct" and stable data-sending rate.

Hello, i have a problem with sending a lot of udp data over the network. Maybe somebody here, has to do with udp and can tell me, how to calculate the correct Udp-Datagram sending interval? My Datagrams contains a Class "DataFragment" which contains a continuous number (Package 1,2,3...n). If package 4 is here i check, if package 3 is here. If not i'll send a request to the other client back and it will send me the DataFragment again. This sounds fine, but it doesn't work very well. I need to ajust the send interval of my "output-stack". Has anybody a solution for this problem? (And please... no answers like "use TCP instead of UDP" and so on.) Thank you

Hello, i've downloaded the STUN-Client from codeproject.com and want now to let two clients connect each other. At first, i create a UdpClient and make a STUN-Query with that. After it, i send the mapped addresses to a server, which deploys them to the two clients. Now they want to connect each other and i make a UdpClient.Connect(mappedIP). This _should_ work, but the problem is, i only get messages from the STUN-Server. I send the data via "UdpClient.Client.SendTo(...)" to my client, but nothing works. I just get crptic messages from the STUN-Server. I've closed the UdpClient. Disconnected and so on, but nothing helps. Has anybody a solution for me?

Hello, how is it possible to check, that the client is connected, before i response to that? I have a lot time-intensive tasks, doing with HttpRequests and i don't want to work in my application and the client is disconnected. Is there any way? Thank you

Hello, i want to communicate between a client/server application with HttpWebRequest an HttpWebResponse. My problem is, that i have a server farm. I want to have sessions and want to be able to send and receive informations. The problem is now, that i can't really work like a web-Server. A request and i deliver a response. I need to talk on one connection in a duplex way. So is it possible to create a HttpWebRequest and to send informations in it, receive some informations and use the same Request(Connection) for sending another Informations? Thank you

Hello together, i've got some issues with my WCF Service. When i run my Service in Windows Azure with more than one Instance and calling some asynchronous Methods parallel, i get some exceptions like "Connection is faulted", "The Sequence is not available" and so on. The most problems have to do with my reliable sessions. The Service runs with InstanceContextMode.PerSession and ConcurrencyMode.Multiple. The exceptions doesn't come if i run my tasks synchrone. I've enabled serviceThrotteling maxConcurrentCalls="1000000" maxConcurrentSessions="1000000" maxConcurrentInstances="1000000" and set the ReceiveTimeout to 10 hours (10:00:00), and also set the MaxItemsInObjectGraph=100000. What's to do now? Can anyone help me please? I need to run my service in multiple Sessions and with multiple Concurrent Connections. Thank you

I haven't any solution yet... I tried this with "OperationContext.Current.OutgoingMessageHeaders.From" on local side, but there's no success. :confused: Is it so difficult to get the IP Address from where i send a message? Or if it's a incoming Callback-Message to get the Endpoint on which the Message came in?

Hello, thank you. But i use the DuplexChannelFactory and there i have a client.Endpoint.Address, but i get back the Address from the service. So what to do now? Thank you

Hello, i'm writing a WCF Application and need to know, which IPAddress/Port i use to communicate with the WCF-Service. I don't want to know on which Port i'm connected on the Server (RemoteEndpointMessageProperty), i want to know which IP/Port my network card uses to connect to the Server. I hope you can help me. Thank you :-)

Hello, I'm developing a application which sends and receives tons of data over UDP. I know the problem of UDP to loss udp-datagrams between sending and receiving. So i created a stack and a timer, where the datagrams to send are stored and sended. (All datagrams get a counting ID, so i'm able to recognize if something is missing) With the interval of the timer i'm able to control the transfer-rate. My problem is now, how to calculate the correct interval of the transfer? Is there any logic to do this? I would work with the messages i get from the connection-partner how many datagrams are lost, but what is the best way to calculate this?

Hello, i'm new in developing with WCF Services and WebServices generally. I wan't to develop a simple WCF Service, where i have a list of "online users". As i started the application it all worked fine, until i logged on with a second user. It seems, that the IIS Server creates a WCF-Service Instance for each connection. How can i create a List, Array or something else, which i can use globally over all instances? I don't want to use a database or something else, just to store a few parameters globally. Is there any solution fot this problem? Thank you

Hello, is there any possible and simple way to convert a Dictionary to a JSON-String an of course to convert it in the other direction (JSON-String to Dictionary)? I've searched a lot, but i havent't found a simple solution. Thank you

Hello, i've build a simple server-application, which only needs to hold a TCP-Connection to the client and which listen async for data. This application also do a few tasks for each user.... So i have got a class "UserSession" in which i store the User-Informations and the TCP-Connection. This UserSession runs in a own thread. My question is now, what's with performance? Is it a problem, that every user has a own Thread? Even if no requests are incoming? The amount of data, which are receiving/sending from this server-application is very low... I need to handle a lot of user (i don't know how much) this could be 100, 1000 or even 10 000 user... So, is this a good idea to give each user a own Thread? Or how can i handle such an amount of Users and TCP-Connections very fast?

Hello, is there any solution to use another control than the standard-WebBrowser-control which is binded by the Internet Explorer? My favourite is the WebKit, but the Problem is, that in the .NET Wrapper for the WebKit (WebKitDotNet) isn't any way to interact with the page over InvokeScript() and ScriptableObjects and so on... Is there any way to find a fast and modern WebBrowser-Control, which supports the interaction with the JavaScript of the page? It would be great if there's something, which is able to run on Mono too. Thanks for your help =)