Draw C in OpenGL

void drawC()

{

    //upper part

    glBegin(GL_QUADS); // DRAWING 4 SIDED QUADRILATERAL

    glColor3f(0.0f, 1.0f, 0.0f);

    glVertex2d(0.0,10.0);

    glVertex2d(10.0,10.0);

    glVertex2d(10.0,7.0);

    glVertex2d(0.0,7.0);

    glEnd();

    //middle part

    glBegin(GL_QUADS); // DRAWING 4 SIDED QUADRILATERAL

    glColor3f(0.0f, 1.0f, 0.0f);

    glVertex2d(0.0,10.0);

    glVertex2d(5.0,10.0);

    glVertex2d(5.0,-10.0);

    glVertex2d(0.0,-10.0);

    glEnd();

    //last part

    glBegin(GL_QUADS); // DRAWING 4 SIDED QUADRILATERAL

    glColor3f(0.0f, 1.0f, 0.0f);

    glVertex2d(0.0,-10.0);

    glVertex2d(10.0,-10.0);

    glVertex2d(10.0,-7.0);

    glVertex2d(0.0,-7.0);

    glEnd();

}

 

// call this function from display()

drawC();