windows programming basic& openggl under win32

Windows Programming Basic&

OpengGL Under Win32

戴明仁20040517

要學會Windows程式設計，最快需要花上六個月的時間

-- Charles Petzold

(author of Programming Windows)

Win32 API Programming

An event driven system model

Only requires basic skills of C language programming

The bottom layer of MFC ,VCL…etc.

Let’s begin Win32 programming using MSVC6.0!

Win32 Program Overview

W in M ain ( )

I n it ia liza tio n

W in d o w sP r o c ed u r e

P r o g r amT er m in a ted

Us er I n te r r u p ted

M es s ag e L o o p

Step 1 : Create a New Project

Step 2 : Set Project Properties

1.choose “Win32 Application”

2.Specify project location

3.Enter project name

Step 3 : Choose Project Template

We choose this in our tutorial

Then choose Finish and OK….A new project has been created!

Step 4 : VC 6.0 IDE Overview

Classview

Resourceview

Fileview

Debug and other window

Code Edit Window

Toolbars

Step 5 : The WinMain() Function

The entry point of a Win32 program , such as main() in a console mode program.

Do windows initializations here. A message loop is in the function , grabbing

messages and send it to message dispatcher -- WndProc( Window Procedure )

Step 6 : Message Dispatcher– WndProc()

Every Windows message comes to here We write codes here to perform some tasks

to achieve our goals. For Example :

– If user presses a key , then a WM_KEYDOWN message will be received.

Check references to see more details about win32 programming.

References

Programming Windows 5th editionby Charles

Petzold.

Microsoft Press. Windows 程式設計實務

by 施威銘旗標

Using OpenGL under Windows-1 Install OpenGL library

Check OpenGL website for latest version of OpenGL library,download and install it.

http://www.opengl.org/documentation/implementations.html

Using OpenGL under Windows-2 Setup VC environment.

Using OpenGL under Windows-3 Link your program with OpenGL libraries.

Congratulations!You now can write OpenGL programs!

Reference

Official OpenGL websitehttp://www.opengl.org

NeHe -- Very good OpenGL tutorialshttp://nehe.gamedev.net/

NeHe Chinese versionhttp://www.geocities.com/SiliconValley/Vista/8177/tutorial/nehe.htm

OpenGL Programming Guide 3th edition OpenGL 超級手冊 (碁峰 )

Why use Win32 instead of GLUT Win32 applications is faster. Win32 is the base of GLUT. Under Win32,user can manipulate any

messages very easily and efficiently. We can integrate other useful stuff (such as

DirectX ) into Win32 applications.

Let’s see how to use kgl to write a OpenGL program.

What is kglApp?

A framework for Win32 and OpenGL A simplest kglApp contains these files:

Double click the workspace file to open kglApp project

What’s in kglApp?

1)Open kglWinGL.h

2)Some configurations that user can modify

3)The main rendering function that user must override itself.

OpenGL Initial Function

Put OpenGL initialization code here.

OpenGL Resize Function

Called when user resize the window.

Keyboard Message Manipulate Place code here to do some thing when some key is pressed

Windows Virtual Key Codes

In the above example, VK_F1 is virtual key code defined in Win32 API which represents the F1 key in the keyboard.

You can check MSDN ( http://msdn.microsoft.com ) for more information about Win32 virtual key codes.

Custom Setup Function

Put any initialize code other then OpenGL here

The Main Rendering Loop

1)Open main.cpp

2)The rendering loop.Draw anything you like here.

Any Questions?

Hope there will be another Quake 3 from you... Goodbye….XD!