Remote control PC's across a LAN

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Introduction

This is a basic remote control application for Windows formed from two modules. One that runs as server and listen to ports 5001 and 5002 (5001 used for image transfer and 5002 for mouse commands, keyboard is not implemented), and the second one which runs as client.

The application was written in c++ and compiled using Microsoft Visual Studio. NET 2003 (7.1).It can still be compiled using Microsoft Visual Studio. NET 2002 but you should edit ".vcproj" file (change Version="7.10" with Version="7.00").

As technology has been used MFC (Microsoft Foundation Classes), API (Application Programming Interface), ATL (Active Template Library), COM (Component Object Model), + GDI (Graphical Device Interface +) and STL (Standard Template Library).

The operating principle is very simple: The server application is intended to send screenshots to any client that it connects and also to receive the packages that are sent by client (packages containing events from the mouse).

Generic MFC Classes that may prove Useful to You

CriticalSection - Critical sections are useful when only one thread at a time can be allowed to modify data or some other controlled resource. You can also use CCriticalSection from MFC.

CSocket – A very useful socket wrapper class. I extended from IUnknown because I used it as smart pointer. CComPtr wraps any interface pointer and will call AddRef() and Release() properly. That is, you don't need to worry about the life cycle of your COM interface pointer.

CIStreamImpl - The IStream interface lets you read and write data to stream objects. Stream objects contain the data in a structured storage object, where storages provide the structure. Simple data can be written directly to a stream but, most frequently, streams are elements nested within a storage object. They are similar to standard files. CIstreamImpl is extended form IStream and use an internal buffer CBuffer and CBufferReader. Both implemented in istreamImpl.h.

Conclusion

This application is just a basic example. If you want something more advanced you can opt for VNC, an open source remote desktop application.

License

This article, along with any associated source code and files, is licensed under The Intelliproject Open License (IPOL)

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