Hi all, I usually program in linux so i''m sure this is a rudimentary question but in VC++ how do you get it to let you seperate your functions into seperate cpp files? For instance, let''s say i want to put DrawGLScene in a file by itself. In linux i would just have my main headers, a custom header for my global variables, a custom function header for function prototypes, and #include "draw.cpp", let''s say, that holds the DrawGLScene function. My problem is when i try to do the same in VC, i.e: #include #include the rest of the headers that would go here, including custom headers #include "draw.cpp" int WINAPI WinMain...rest of program, it comes back with the errors: c:\windows\desktop\winprogs\tetrivix\draw.cpp(5) : error C2065: ''GLvoid'' : undeclared identifier c:\windows\desktop\winprogs\tetrivix\draw.cpp(6) : error C2448: '''' : function-style initializer appears to be a function definition Error executing cl.exe. It seems like it would look at the GL headers that had already been defined. Anyway, any help is greatly appreciated. Thanks, Crimson

I might misunderstand you.
Do you have a "draw.h" and a "draw.cpp"?
If so make sure you are creating a project. and have the .cpp file include the header, dont have the header file include the .cpp file.
I guess you can do it either way, but i never have.

If you include the header that holds the prototype for DrawGLScene and put the function definition in a separate cpp file the file will automatically be included.

So you can have:

//header.h
int Function(int whatever); //Function prototype

//function.cpp
int Function(int whatever)
{
...
}

//main.cpp
headers...
#include "header.h"

int main()
{
int a = Function(3);
...
return 0;
}

just include the GL headers in your draw.cpp file

Isn''t that what projects are for?

Still no luck. Here''s a bit of my code. Maybe that will show what i''m doing wrong a little better

in main.cpp:
#include
#include
#include
#include
#include "globals.h"
#include "prototypes.h" // with the exception of DrawGLScene. Initially I had it in here and no draw.h but it didn''t work. Any functions in the local file will work with the functions defined by this header

#include "draw.h" // i''ve also tried draw.cpp in place of draw.h and just having a draw.cpp and no draw.h at all

// Entry Point for the program
int WINAPI WinMain...

in draw.h:
#ifndef _DRAW_H_
#define _DRAW_H_

int DrawGLScene(GLvoid); // GLvoid comes back as undefined; same errors as listed in my first post basically

#endif

in draw.cpp:
#ifndef _DRAW_CPP_
#define _DRAW_CPP_

#include "draw.h"
// Here''s where the drawing takes place
int DrawGLScene(GLvoid)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();

return TRUE;
}

#endif

I started off by making a project. As you can see in the above code, i''m just trying to get lesson 1 to work with seperate files right now. Also, if I include the gl headers in draw.cpp, the compiler complains of errors in gl.h(because it''s being called twice. If I only call it in draw.cpp, then the functions in the main.cpp file have a lot of undefines(glvoid, etc.)

Thanks,
Crimson