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Posted 21 Dec 2005

Genesis UDP Server and Client

, 21 Dec 2005
An article that shows the implementation of a lightweight UDP server and client with optional reliable channel.
using System;
using System.Runtime.InteropServices;

namespace GenesisChatClient
	public struct FLASHWINFO
		public UInt32 cbSize;
		public IntPtr hwnd;
		public UInt32 dwFlags;
		public UInt32 uCount;
		public UInt32 dwTimeout;

	public class PInvoke
		public static extern Int16 FlashWindowEx(ref FLASHWINFO pwfi);

		//Stop flashing. The system restores the window to its original state. 
		public const UInt32 FLASHW_STOP = 0; 
		//Flash the window caption. 
		public const UInt32 FLASHW_CAPTION = 1; 
		//Flash the taskbar button. 
		public const UInt32 FLASHW_TRAY = 2; 
		//Flash both the window caption and taskbar button.
		//This is equivalent to setting the FLASHW_CAPTION | FLASHW_TRAY flags. 
		public const UInt32 FLASHW_ALL = 3; 
		//Flash continuously, until the FLASHW_STOP flag is set. 
		public const UInt32 FLASHW_TIMER = 4; 
		//Flash continuously until the window comes to the foreground. 
		public const UInt32 FLASHW_TIMERNOFG = 12; 


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About the Author

Rob Harwood
Web Developer
United Kingdom United Kingdom
Born in England, I have been programming since a very early age when my dad gave me prewritten programs to type in and run on a Sinclair ZX81 machine (seeing my name printed out on a TV screen was enough to keep me entertained!). I later did work using basic and STOS basic on the Atari ST and after that got my first PC and used Microsoft's QBasic. Later when I was about 13 I was in an airport and saw a trial copy of Visual Basic on a magazine, which I bought and it got me hooked on the Microsoft development tools.

Currently I am studying a software engineering degree and have been working with .NET since 1.0. I have just moved over to Visual Studio 2005/.NET 2.0 and am loving it! During my degree I have worked for a year at DuPont, where I ended up changing a lot of their old existing software over to .NET and improving it in the process! Since then I have been back and done some consulting work involving maintaining some of their older C++/MFC software.

While most of my current interestes involve .NET I am also confident in working with C++ in Win32, VB, Java, and have even done some development work on the Linux platform (although most of this involved ensuring that software I wrote in C++ was platform independent).

I have a strong passion for software technology, both higher level and more recently, systems level stuff (the dissertation I am doing for my degree is to implement a small compiler and virtual machine in C# for a Pascal-style language).

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