Draw 4 stars in screen with OpenGL
Screenshot:

Code:
#include <windows.h>
#include <GL\glut.h>
void myInit (void)
{
glClearColor(0.0,0.0,0.0,0.0); // sets background color to white
// sets a point to be 4x4 pixels
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0, 500.0, 0.0, 400.0); // the display area in world coordinates.
}
void myDisplay(void)
{
glClear(GL_COLOR_BUFFER_BIT); // clears the screen
;// setsthe drawing colour
glPointSize(4.0);
//Axis
glColor3f(1.0f,0.0f,1.0f) ;
glBegin(GL_LINES);
glVertex2i(255,0);
glVertex2i(255,500);
glVertex2i(0,200);
glVertex2i(500,200);
glEnd();
glColor3f(1.0f,0.0f,0.0f);
//
glColor3f(1.0f,1.0f,0.0f) ;
glBegin(GL_POLYGON);
//bottom
glVertex2i (40,50);
glVertex2i (60,50);
//left
glVertex2i (40,50);
glVertex2i (40,80);
//top
glVertex2i (40,80);
glVertex2i (60,80);
//right
glVertex2i (60,50);
glVertex2i (60,80);
glEnd();
//BOTTOM TRIANGLE
glColor3f(1.0f,0.0f,0.0f) ;
glBegin(GL_POLYGON);
//bottom
glVertex2i (40,50);
glVertex2i (60,50);
//left
glVertex2i (40,50);
glVertex2i (50,30);
//RIGHT
glVertex2i (60,50);
glVertex2i (50,30);
glEnd();
//RIGHT TRIANGLE
glColor3f(1.0f,0.0f,0.0f) ;
glBegin(GL_POLYGON);
//bottom
glVertex2i (60,50);
glVertex2i (60,80);
glVertex2i (60,50);
glVertex2i (70,60);
glVertex2i (60,80);
glVertex2i (70,60);
glEnd();
//left triangle
glColor3f(1.0f,0.0f,0.0f) ;
glBegin(GL_POLYGON);
glVertex2i (40,50);
glVertex2i (40,80);
glVertex2i (40,50);
glVertex2i (30,64);
glVertex2i (40,80);
glVertex2i (30,62);
glEnd();
//Top triangle
glColor3f(1.0f,0.0f,0.0f) ;
glBegin(GL_POLYGON);
glVertex2i (40,80);
glVertex2i (60,80);
glVertex2i (40,80);
glVertex2i (50,90);
glVertex2i (60,80);
glVertex2i (50,90);
glEnd();
glColor3f(1.0f, 0.0f, 0.0f);
glRectf(120,120, 100, 100);
glColor3f(1.0f,1.0f,0.0f) ;
glBegin(GL_POLYGON);
//RIGHT
glVertex2i (120,120);
glVertex2i (120,100);
glVertex2i (120,120);
glVertex2i (150,110);
glVertex2i (120,100);
glVertex2i (150,110);
glEnd();
glBegin(GL_LINES);
//RIGHT
glVertex2i (120,120);
glVertex2i (120,100);
glVertex2i (120,120);
glVertex2i (150,110);
glVertex2i (120,100);
glVertex2i (150,110);
glEnd();
//left
glBegin(GL_POLYGON);
glVertex2i (100,120);
glVertex2i (62,107);
glVertex2i (100,100);
glVertex2i (62,107);
glEnd();
glColor3f(0.0f,0.0f,1.0f) ;
glBegin(GL_POLYGON);
glVertex2i (100,120);
glVertex2i (110,130);
glVertex2i(110,130);
glVertex2i (120,120);
glEnd();
glColor3f(0.0f,0.0f,1.0f) ;
glBegin(GL_POLYGON);
glVertex2i (100,98);
glVertex2i(110,70);
glVertex2i (120,98);
glVertex2i(110,70);
glEnd();
glColor3f(1.0f,1.0f,1.0f);
glBegin(GL_POLYGON);
glVertex2i (350,290);
glVertex2i (350,315);
glVertex2i (350,290);
glVertex2i(370,290);
glVertex2i (370,290);
glVertex2i (370,315);
glVertex2i (350,315);
glVertex2i (370,315);
glEnd();
glColor3f(0.0f,0.0f,1.0f) ;
glBegin(GL_POLYGON);
glVertex2i (350,315);
glVertex2i (362,325);
glVertex2i (370,315);
glVertex2i (362,325);
glEnd();
//
glColor3f(0.0f,0.0f,1.0f) ;
glBegin(GL_POLYGON);
glVertex2i (370,290);
glVertex2i (385,305);
glVertex2i (370,315);
glVertex2i (385,305);
glEnd();
glColor3f(0.0f,0.0f,1.0f) ;
glBegin(GL_POLYGON);
glVertex2i (350,290);
glVertex2i (320,305);
glVertex2i (350,315);
glVertex2i (320,305);
glEnd();
glColor3f(0.0f,0.0f,1.0f) ;
glBegin(GL_POLYGON);
glVertex2i (350,290);
glVertex2i (362,270);
glVertex2i (370,290);
glVertex2i (362,270);
glEnd();
glColor3f(0.0f,0.0f,1.0f) ;
glBegin(GL_POLYGON);
glVertex2i (70,275);
glVertex2i (70,290);
glVertex2i(70,290);
glVertex2i(85,290);
glVertex2i(85,290);
glVertex2i(85,275);
glVertex2i(85,275);
glVertex2i(70,275);
glEnd();
glColor3f(1.0f,1.0f,1.0f);
glBegin(GL_POLYGON);
glVertex2i(70,275);
glVertex2i(76,220);
glVertex2i(85,275);
glVertex2i(76,220);
glEnd();
glColor3f(1.0f,1.0f,1.0f);
glBegin(GL_POLYGON);
glVertex2i(85,275);
glVertex2i(120,280);
glVertex2i(85,290);
glVertex2i(120,280);
glEnd();
glColor3f(1.0f,1.0f,1.0f);
glBegin(GL_POLYGON);
glVertex2i(70,275);
glVertex2i(38,280);
glVertex2i(70,290);
glVertex2i(38,280);
glEnd();
glColor3f(1.0f,1.0f,1.0f);
glBegin(GL_POLYGON);
glVertex2i(70,290);
glVertex2i(76,335);
glVertex2i(85,290);
glVertex2i(76,335);
glEnd();
glFlush(); // sends all output to display;
}
int main (int argc, char **argv)
{
glutInit (&argc, argv); // to initialize the toolkit;
glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB); // sets the display mode
glutInitWindowSize (640, 480); // sets the window size
glutInitWindowPosition (10, 10); // sets the starting position for the window
glutCreateWindow ("My first OpenGL program!"); // creates the window and sets the title
glutDisplayFunc (myDisplay);
myInit(); // additional initializations as necessary
glutMainLoop(); // go into a loop until event occurs
return 0;
}