Cylinder with gluCylinder()

Well, what i’m trying to do is to draw a Cylinder using GLUquadricObj and gluCylinder, i don’t get any code errors, compiles fine. However i don’t see the cylinder.

Code:

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void GLWindow::paintGL()
{
    glClear(GL_COLOR_BUFFER_BIT);
    glColor3f(1,0,0);
    glBegin(GL_POLYGON);
    GLUquadricObj *obj = gluNewQuadric();
 
    gluCylinder(obj, 1.0, 1, 3, 30, 30);
 
    glEnd();
}

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So, the question is, how do i make the Cylinder appear at the middle of the screen?

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Added after 5 minutes:

Fixed. I was doing: glMatrixMode(GL_MODELVIEW); and glMatrixMode(GL_PROJECTION); in resizeGL() which seems to have caused this.