c++ code in visual basic

#include <GL/glut.h>

void shapes (void) {

    /*glColor3f(1.0, 1.0, 1.0); //this will set a color of the square.
    glBegin(GL_LINES); // write shape u want to create
    glVertex3f(-0.5, -0.5, 0.0);
    glVertex3f(-0.5, 0.5, 0.0);
    glVertex3f(0.5, 0.5, 0.0);
    glVertex3f(0.5, -0.5, 0.0);*/

    /*glBegin(GL_POINTS);
    glVertex3f(.5,.5,0);
    glVertex3f(-.5,-.5,0);
    glVertex3f(0,.5,0);
    glVertex3f(.5,0,0);
    glVertex3f(0,0,0);*/

    /*glBegin(GL_LINE_STRIP);
      glVertex3f(0,0,0);
      glVertex3f(-.5,0,0);
      glVertex3f(.5,.5,0);
      glVertex3f(-.5,.5,0);
      glVertex3f(.5,0,0);*/

    /*glBegin(GL_POLYGON);
    glColor3f(1, 0, 0);
    glVertex3f(-0.6, -0.75, 0);
    glColor3f(0, 1, 0);
    glVertex3f(0.6, -0.75, 0);
    glColor3f(0, 0, 1);
    glVertex3f(0, 0.75, 0);*/

    /*glBegin(GL_TRIANGLES);
    glColor3f(0.5, 0.5, 0.5);
    glVertex3f(0, 0, 0);
    glVertex3f(1, .2, 1);
    glVertex3f(-.5, .5, 2);*/

    glBegin(GL_TRIANGLES);
    glColor3f(1.0, 0.0, 0.0);

    glVertex3f(0.0, 1.0, 0);
    glVertex3f(-0.5, 0.5, 0.0);
    glVertex3f(0.5, 0.5, 0.0);

    glEnd();


    glBegin(GL_QUADS);
    glColor3f(0.0, 1.0, 0.0);
    glVertex3f(-0.5, -0.5, 0.0);
    glVertex3f(-0.5, 0.5, 0.0);
    glVertex3f(0.5, 0.5, 0.0);
    glVertex3f(0.5, -0.5, 0.0);
    glEnd();

    glBegin(GL_QUADS);
    glColor3f(0.0, 0.0, 1.0);
    glVertex3f(-0.2, -0.5, 0.0);
    glVertex3f(-0.2, 0.2, 0.0);
    glVertex3f(0.2, 0.2, 0.0);
    glVertex3f(0.2, -0.5, 0.0);
    glEnd();


    /*glBegin(GL_QUADS);
    glColor3f(0.0, 0.1, 1.0);
    glVertex3f(-0.5, -0.5, 0.0);
    glVertex3f(-0.3, -0.3, 0.0);
    glVertex3f(-0.3, 0.3, 0.0);
    glVertex3f(-0.3, 0.1, 0.0);*/

    glEnd();
    /*glBegin(GL_TRIANGLE_FAN);
         glColor3f(1,0,0);
         glVertex2f(0,0.5);
         glVertex2f(-0.4,0);
         glVertex2f(0.4,0);
         glVertex2f(0,-0.5);
    */

    glEnd();
}

void display (void) {

    // clearing the window with black color, 1st 3 parameter are for R,G,B. last one for opacity
    glClearColor (0.0,0.0,0.0,1.0);
    glClear (GL_COLOR_BUFFER_BIT);
    glLoadIdentity();
         //viewing transformation
    //glulookat() positions the camera towards the object
    //camera position, camera target, upvector
    gluLookAt (0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
    shapes();
    glFlush();
}

void reshape (int w, int h) {

    // 1st 2 parameters for lower left corner of the viewport rectangle. the default is 0,0
    // the next coordinates are width and hight of the viewport
//Set the viewport to be the entire window
    glViewport (0, 0, (GLsizei)w, (GLsizei)h);

    // setting the camera
    glMatrixMode (GL_PROJECTION);
    glLoadIdentity ();

    //perspective transform
    //gluPerspective (30, (GLfloat)w / (GLfloat)h, 1.0, 100.0);
    gluPerspective (30, 1, 1.0, 100.0);
    glMatrixMode (GL_MODELVIEW); //switch back the the model editing mode.

}

int main (int argc, char **argv) {
    glutInit (&argc, argv);
    glutInitDisplayMode (GLUT_SINGLE); // single buffering.. (double buffering for animation)
    // full screen is 1000,1000
    // this 0,0 or 1000,1000 are world co ordinates
    glutInitWindowSize (700, 700);
    glutInitWindowPosition (100, 100);
    glutCreateWindow ("A basic OpenGL Window");
    // registering callback functions
    glutDisplayFunc (display);
    glutReshapeFunc (reshape);

    glutMainLoop ();
    return 0;
}