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We won't worry about the reason why we must do this at this point. We will simply follow the instructions and make the call.

The end of the program

That completes the explanation for this program. Because of the simplicity of the program, we had no need to override the following methods (see Listing 3 ):

  • Initialize
  • UnloadContent
  • Update

We will develop more complicated programs in future modules and will have a need to override one of more of these methods. I will explain them at that time.

Run the program

I encourage you to copy the code from Listing 10 . Use that code to create an XNA project. Compile and run the project. Experiment with the code, makingchanges, and observing the results of your changes. Make certain that you can explain why your changes behave as they do.

Run my program

Click here to download a zip file containing my version of the program. Extract the folder named XNA0118Proj from the zip file and save it somewhere on your disk. Start Visual C# 2010 Express and select Open Project... from the File menu. Navigate to the project folder and select the file with the extension of .sln . This should cause the project to open and be ready to run or debug as described in the earlier module titled Getting Started .


In this module, I used a very simple XNA program to teach you many of the details regarding the incorporation of the XNA framework into theobject-oriented C# programming language. I also taught you about constructors, the this keyword, the base keyword, and some of the differences between a Console Application and a Windows Game application.


This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Xna0118-The XNA Framework and the Game Class
  • File: Xna0118.htm
  • Published: 02/28/14

Financial : Although the Connexions site makes it possible for you to download a PDF file for thismodule at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, you should beaware that some of the HTML elements in this module may not translate well into PDF.

I also want you to know that, I receive no financial compensation from the Connexions website even if you purchase the PDF version of the module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale on Amazon.com showing me as the author. Ineither receive compensation for those sales nor do I know who does receive compensation. If you purchase such a book, please beaware that it is a copy of a module that is freely available on cnx.org and that it was made and published withoutmy prior knowledge.

Affiliation : I am a professor of Computer Information Technology at Austin Community College in Austin, TX.

Complete program listing

A complete listing of the XNA program discussed in this module is provided in Listing 10 .

Listing 10 . The Game1 class for the project named XNA0118Proj.

using System.Collections.Generic; using System.Linq;using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Audio;using Microsoft.Xna.Framework.Content; using Microsoft.Xna.Framework.GamerServices;using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework.Input;using Microsoft.Xna.Framework.Media; namespace XNA0118Proj{public class Game1 : Microsoft.Xna.Framework.Game{ GraphicsDeviceManager graphics;SpriteBatch spriteBatch; public Game1(){ graphics = new GraphicsDeviceManager(this);Content.RootDirectory = "Content"; }protected override void Initialize() {// TODO: Add your initialization logic here base.Initialize();} //Declare two variablesTexture2D myTexture; Vector2 spritePosition = new Vector2(10.0f, 15.0f);protected override void LoadContent() {// Create a new SpriteBatch, which can be used // to draw textures.spriteBatch = new SpriteBatch(GraphicsDevice); //Load the imagemyTexture = Content.Load<Texture2D>("gorightarrow"); }//end LoadContentprotected override void UnloadContent() {// TODO: Unload any non ContentManager content here }protected override void Update(GameTime gameTime) {// Allows the game to exit if(GamePad.GetState(PlayerIndex.One).Buttons.Back==ButtonState.Pressed)this.Exit(); // TODO: Add your update logic herebase.Update(gameTime); }protected override void Draw(GameTime gameTime) {GraphicsDevice.Clear(Color.CornflowerBlue); spriteBatch.Begin();spriteBatch.Draw(myTexture, spritePosition, Color.White); spriteBatch.End();base.Draw(gameTime); }//end Draw method}//End class }//End namespace


Questions & Answers

do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
how did you get the value of 2000N.What calculations are needed to arrive at it
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Source:  OpenStax, Xna game studio. OpenStax CNX. Feb 28, 2014 Download for free at https://legacy.cnx.org/content/col11634/1.6
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