Linux OpenGL 2.0

LIBS += -lGL -lGLU -lglut -lGLU

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include "QMessageBox"
#include "QKeyEvent"
#include <GL/glu.h>
 
#include <QMainWindow>
 
namespace Ui {
class MainWindow;
}
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
public slots:
    void displayMe(float x);
 
private:
    Ui::MainWindow *ui;
};
 
#endif // MAINWINDOW_H

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "GL/freeglut.h"
#include "QMouseEvent"
#include "QKeyEvent"
#include "QDebug"
#include <QGLWidget>
#include <iostream>
#include <sstream>
#include <iomanip>
using std::stringstream;
using std::cout;
using std::endl;
using std::ends;
 
using namespace std;
 
void MainWindow::displayMe(float x) {
    x;
         glPointSize(2.0f);
         glBegin(GL_POINTS);
         glVertex3f(0.0f, 0.9f, 0.0f);
         glVertex3f(0.0f, 0.8f, 0.0f);
         glVertex3f(0.0f, 0.7f, 0.0f);
         glVertex3f(0.0f, 0.6f, 0.0f);
         glVertex3f(0.0f, 0.5f, 0.0f);
         glVertex3f(0.0f, 0.4f, 0.0f);
         glVertex3f(0.0f, 0.3f, 0.0f);
         glVertex3f(0.0f, 0.2f, 0.0f);
         glVertex3f(0.0f, 0.1f, 0.0f);
         glVertex3f(0.0f, 0.0f, 0.0f);
         glVertex3f(0.0f, -0.1f, 0.0f);
         glVertex3f(0.0f, -0.2f, 0.0f);
         glColor3f(1.0f,0.0f,0.0f);
         glEnd();
}
 
 
int argc = 0;
char**argv = NULL;
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
 
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE);
    glutInitWindowSize(600, 600);
    glutInitWindowPosition(0,0);
    glEnable(GL_TEXTURE_2D);
    glutCreateWindow("Hello world :D");
    glClear(GL_COLOR_BUFFER_BIT);
    //glViewport(0,0,1200, 00);
    displayMe(0.1);
    glFlush();
    glutMainLoop();
}
 
 
 
MainWindow::~MainWindow()
{
    delete ui;
}