communication between a Windows C# application and a web-based JavaScript interface

Similar Question:
how to get variable in desktop c# program from web javascript application

Encountered an issue involving two applications: a desktop application written in C# and a web application in JavaScript. The need has arisen to transfer certain variables or information from the running desktop application to the web application. Is there a solution available for this scenario? Could you provide more detailed guidance on how to resolve this issue?

I am considering using message queuing (MSMQ) as a potential solution, along with utilizing a database. Which approach would offer better real-time performance? While WCF may be able to address this, it is known to be more complex than the aforementioned methods. If anyone has sample code demonstrating how to use WCF to establish a connection between a Windows program and a web script, please share it.

Additionally, I am exploring the idea of utilizing a physical buffer that could facilitate communication between a C# Windows program and JavaScript. However, it seems that JavaScript lacks direct access to physical buffers.

c#javascriptwindowswcfweb

Answer №1

To enable communication between a desktop C# application and web-based JavaScript, you can set up a basic HTTP server in your C# app listening on 127.0.0.1 with an available port. This server can respond to GET requests by sending JSON data.

If all requests are the same, you could utilize a TCP server instead of parsing each request individually. You would simply send an HTTP header and your data to any TCP client that connects.

A desktop C# application is capable of initiating TCP, HTTP, and socket communication with web servers. The challenge lies in how web-based JavaScript can receive packets sent by the desktop C#. Web-based JavaScript requires the received data for processing.

In the desktop app, use HttpListener (not HttpClient) to handle communication as demonstrated here. In the web app, reference something like 

http://localhost:1234/customerData
. To load data only once, include a valid .js file with all values on the page. For more dynamic updates, consider using a library like jQuery.

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