Learning OpenGL

But for those of us what lived and died in them furious days

it was like everything we knew was mightily swept away

And no matter what they did to build the city up again

for the rest of time

it would be like no one even knew we was ever here.

                                          ----From a film

For long time exploring,I decide to start learning OpenGL.

During the time I will take notes the problems and the answers.

Today after downloading the Dev C++(Or CodeBlocks) and OpenGL,we need to set up the

environment for the programming.The OpenGL package I download is glutming.First we copy

the glut.h to ~/include/GL,copy glut32.dll to $WindowsDir$/system32,copy the glut32.lib to ~/lib.

Then I write a simple progrm to test the setting.The program can be compiled correctly but it

reports linkage error.By searching,I find a answer like this:

"I search this problem in google, and find this website:

http://www.iscs.nus.edu.sg/~liusheny/DevCppOpenGL.html

It is nearly the complete answer to me except the following linkage error:

[Linker error] undefined reference to '__glutInitWithExit@12'
[Linker error] undefined reference to '__glutCreateWindowWithExit@8'
[Linker error] undefined reference to '__glutCreateMenuWithExit@8'

Again I ask for help in the internet, and find the following answer:

try putting this in your source code, before the includes
#define GLUT_DISABLE_ATEXIT_HACK

To this moment, the linker error disappear, and we can run the program successfully.

Congratulations!"------http://fsli.blog.hexun.com/18279240_d.html

but I don't use it.I do three steps:

1) Not only we should copy the glut32.lib to ~/lib,we need  the file "libglut32.a" go to there too.

2) Because I use win7 OS,it concerns the authority,we need start the Dev c++ using the admin right.

3) Before running the program,we need to add link "libopengl32.a libglu32.a libglut32.a" by the order to link libraries

  the last I think it is better to using the four files --glut.h,glut32.dll,glut32.lib,libglut32.a in one version.

  This seting is used in Windows7/Vista OS.