Super bible examples

OpenGL
1

I’m reading the OpenGL super bible 4th edition. I’ve installed glut, glew, glee. I am using Microsoft visual C++ 2008. when I complie the following code I get the following errors:

#include "opengl.h"  // Custom open GL header

// Called to draw a scene

void RenderScene(void)
{
	// Clear the window with current clearing color
	glClear(GL_COLOR_BUFFER_BIT);

	// Flush drawing commands
	glFlush();
}

// Setup the rendering state

void SetupRC(void)
{
	glClearColor(0.0f, 0.0F, 1.0f, 1.0f);
}

// Main program entry point

void main(void)
int main(int argc, char* argv[])
{
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGBA);
	glutCreateWindow("Simple");
	glutDisplayFunc(RenderScene);

	SetupRC();

	glutMainLoop();

	return 0;
}

With that code I get these following errors…

error C2144: syntax error : ‘int’ should be preceded by ‘;’
error C2731: ‘main’ : function cannot be overloaded
see declaration of ‘main’

Here is the header file just incase:

// Windows
#ifdef WIN32
#include <windows.h>
#include <glee.h>
#include <gl/gl.h>

#include <gl/glu.h>
#include <glut.h>
#endif

// Mac Os X
#ifdef _APPLE_
#include <Carbon/Carbon.h>
#include "glee.h"
#include <OpenGL/gl.h>

#include <OpenGL/glu.h>
#include <Glut/glut.h>
#endif
2

I advice you to take a course in programming (or at least get a book on C) first, as you apparently have absolutely no idea what you are doing. To solve your “problem”, try removing that “void main(void)” line

3

I am in C++. Forgive me if I follow the example in the OpenGL book and didn’t know void main(void) wasn’t suppose to be there. You know everyone begins somewhere.

4

Thank you for your assistance. That was my mistake. I’ve never seen

void main(void)

used before. I will take that lesson with me in the future. Again Ty the program now works as intended.

5

Well, I am somehow irritated because, IMHO, any person (yes, even a C++ programmer :wink: ) who actually have some programming experience should be able to interpret a simple compiler output like that; I mean, I’ve never wrote a single line in C myself in my life.

But hey, anyone can have a bad day…

6

This topic was automatically closed 183 days after the last reply. New replies are no longer allowed.