Hi all,

SDL has proven to be one of the simplest ways of preparing a framework for coding OpenGL. It handles all the borring details of setting up windows and event handlers. Below is a source snippet that illustrates how I code my entry function in Windows programs:

#define FULLSCREEN

#define WIDTH 1024

#define HEIGHT 768



bool ShouldQuit()

{

	SDL_Event e;

	while (SDL_PollEvent(&e))

	{

		if (e.type == SDL_QUIT) 

		{

			return true;

		}

		else if ( e.type == SDL_KEYDOWN && e.key.keysym.sym == SDLK_ESCAPE) 

		{

			return true;

		}

	}

	return false;

}

int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)

{

	try

	{

		if (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO) != 0) {

			throw SDL_GetError();

		}   

		SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );

		SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 );

		SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 );

		SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 );

		SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8 );

		SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 32 ); 

#ifdef FULLSCREEN

		SDL_Surface* screen = SDL_SetVideoMode( WIDTH, HEIGHT, 32, SDL_OPENGL | SDL_FULLSCREEN ); 

#else

		SDL_Surface* screen = SDL_SetVideoMode( WIDTH, HEIGHT, 32, SDL_OPENGL ); 

#endif



		while (!ShouldQuit())

		{

			DrawStuff();

			SDL_GL_SwapBuffers();

		}  

	}

	catch (const char* msg)

	{

		MessageBox(0, msg, “Error”, MB_ICONERROR);

	}

	return 0;

}