// Lahde: http://www.cs.uct.ac.za/Courses/CS300W/ICG/Resources/OpenGL/quick.html

#include "GL/glaux.h"
#include "GL/gl.h"
#include "GL/glu.h"

int main(int argc, char** argv)
{
        auxInitDisplayMode (AUX_SINGLE | AUX_RGB);
        auxInitPosition (0, 0, 500, 500);
        auxInitWindow (argv[0]);

        glClearColor (0.0, 0.0, 0.0, 0.0);
        glClear(GL_COLOR_BUFFER_BIT);
        glColor3f(1.0, 1.0, 1.0);
        glMatrixMode (GL_PROJECTION);
        glLoadIdentity ();
        glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
        glBegin(GL_POLYGON);
                glVertex2f(-0.5, -0.5);
                glVertex2f(-0.5, 0.5);
                glVertex2f(0.5, 0.5);
                glVertex2f(0.5, -0.5);
        glEnd();
        glFlush();
        Sleep (2000);
        return 0;
}