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Remote Controlled Windows Application

, 1 Jul 2004
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How to let your Windows application be remote controlled

Introduction

This small Windows application shows how to make your application or part of it be controlled from remote machines. The demo application just can flip an image and this is also what several remote clients can do.

Background

Since most of the samples I found on Internet about remoting do let the .Net runtime create the marshalled object in the hidden background,
I had to find a way to create and marshal my objects programmatically to provide it with a reference to my applications interface. This is just what my application demonstrates.

It also demonstrates how to minimize the dependencies from server and clients by accessing the remote object over interfaces. Here is the design pattern for decoupling the objects with interfaces.

Using the code

The VS-Solution 'MyRemoteSampleApp.sln' holds the 3 projects: the application, the client and the remotable class.

  • MyServerApplication
  • MyClient
  • MyRemoteInterface

After starting 'MyServerApplication.exe' you can start as many clients 'MyClient.exe' as you like, which all connect to the same 'MyService' object.

Points of Interest

Create and marshal the object on server side in the applications 'Main()':

TcpChannel channel = new TcpChannel(8080);
ChannelServices.RegisterChannel(channel);

// Create a single marshalled object
MyServiceClass remService  = new MyServiceClass();
ObjRef obj = RemotingServices.Marshal(remService,"TcpService");

// Create appllications MainForm
MainAppForm frmMain = new MainAppForm();

// provide the marshalled object with a reference to the Applications interface
remService.theMainForm = ( IAppRemote) frmMain;

// start application
Application.Run(frmMain);
Connect to the remote object on client side:
// Interface reference
IMyService remServive = null;
...
...

// Get a TCP channel and register required service
ChannelServices.RegisterChannel(new TcpChannel());
WellKnownClientTypeEntry remotetype = new WellKnownClientTypeEntry(
  typeof(MyServiceClass),"tcp://localhost:8080/TcpService");
RemotingConfiguration.RegisterWellKnownClientType(remotetype);

// instantiates the proxy
remServive = new MyServiceClass();

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

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About the Author

Joel Brandenberger

Switzerland Switzerland
No Biography provided

Comments and Discussions

 
GeneralObserver Pattern PinmemberLav Pathak11-Mar-05 10:03 
GeneralCool . check it out www.dotnetremoting.com PinsussHtrough3-Feb-05 23:26 
Cool . check it out www.dotnetremoting.com
GeneralRe: Cool . check it out www.dotnetremoting.com Pinmemberfatcat111126-Sep-05 9:44 
GeneralRemoting Problems ... PinmemberPaebbels24-Nov-04 6:25 
GeneralIdle Time PinmemberHMJ25-Jul-04 7:34 
GeneralRe: Idle Time Pinmemberjobr1ch25-Jul-04 20:31 
Generalthank you very much Pinmemberkrssagar15-Jul-04 20:35 

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