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Questions tagged [duplex]

A duplex communication system is a point-to-point system composed of two connected parties or devices that can communicate with one another in both directions, simultaneously.

A duplex communication system is a point-to-point system composed of two connected parties or devices that can communicate with one another in both directions, simultaneously. An example of a duplex device is a telephone.

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Node duplex stream doesn't actually emit data when read

I'm working on a data-sink of sorts that is eventually to be used for Key-Value object streams in nodejs. I've stumbled across duplex streams and started playing with them a bit to get my feet wet, but everything I try seems to not work. At present,…
Carson
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Can I use JavaScript to subscribe to WCF WSDualHttpBinding?

I have a web site that needs data to be pushed to it. Unfortunately, I'm not aware of any other methods besides using HTML 5 WebSockets (I can't garauntee my clients will have HTML5 browers) and Comet (I'm not using java/tomcat). I am not a big…
Benny
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Is CAN half or full duplex?

Is CAN (Controller Area Network) half duplex or full duplex communication? And what is the rationale why? Is there an ISO CAN document which would clear up my confusion?
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How to push data (SQL or LINQ), from WCF Duplex Service to Silverlight client

I have made simple chat application to learn some new things, and what I want to do now, is to add user list that are currently logged into chat. So I did this: public ObservableCollection GetUserList() { …
Łukasz Baran
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Send and receive simultaneously with TIdTCPServer

It is always advised to perform all the sending / receiving tasks in OnExecute event handler of TIdTCPServer, but I do not understand following: How to wait for a specific sequence on input and at the same time send some data to the same client? I…
Paul
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WCF MaxPendingChannels setting vs MaxConnections

what is the relation between those properties? which one of them govern the number of clients connect to net.tcp reliable service? I tried to read on both of them but tit is not clear which control what in the throtlling of the service
Lior
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TimeOut exception in WCF while implementing duplex

My service contract and callback contracts look like this: [ServiceContract(CallbackContract = typeof(IWebshopCallback))] interface IWebshop { [OperationContract] string GetWebshopName (); [OperationContract] string GetProductInfo…
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Call request/reply method of duplex service freeze client until timeout occur

I have create a duplex WCF service tha return data from an external device to the client and allow also request/reply calls. My problem is that the request/reply calls sometime freeze the client until timeout occurs. These are the…
Marco Segurini
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Where can I find a good Silverlight 4 WCF duplex tutorial?

I'm interested in seeing a good example of a duplex service that a Silverlight 4 application connects to, is there one out there? I'm willing to get a book if it's located in it. I went though the MSDN one located here and didn't follow it very…
isorfir
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echo cancellation for FMS or Red5?

It's unavailable that since 2008, echo cancellation has been requested to ADOBE and they just have done nothing. They just promised (3 months ago) they will release the feature in june with the 10.3 player. I need a solution now, can't wait until…
oscarm
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Silverlight 4 WCF Duplex Service - How to configure for HTTPS

How do I configure my Silverlight app and duplex WFC service to use HTTPS? Currently evrything works if using HTTP, but as soon as the client hits the site using HTTPS, the callback creation within the service fails. I believe I need to modify my…
Scott
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WCF duplex channel, de-coupling the request and the response

I'm contemplating a project where I'll be required to make use of what is variously called the "asynchronous" mode, or the "duplex" mode, or the "callback" mode of SOAP webservice. In this mode, the caller of the service provides in the SOAP header…
Mark
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pipe issue with Node js Duplex Stream example

I would like to write an example for node js duplex streams, such that for two duplex streams A and B If A writes something it should be read by stream B and vice versa I have written it in this way: const Duplex = require('stream').Duplex; class…
vmt
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Print PDF duplex with Java on AS400

I have a PDF document that is stored in the iSeries' IFS folder and want to print it using Java that is running in the iSeries' JVM. Just printing the PDF and sending it to the outqueue works perfectly fine but now I want to to print it in Duplex…
Max B
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WIA Duplex scanning using document feeder

Below is my c# code trying to transfer image from the duplex scanner. I'm able to acquire one image (Front Only) but i cant get the second image. I have tried changing the device property 3088 to 5 but i get a catastrophic failure. I'm working with…
Kagiri Bin Wamutte
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