GL_QUADS Example In OpenGl

#include <gl glut.h="">         

void display()

{

glClear(GL_COLOR_BUFFER_BIT); 

glColor3f(1.0,1.0,0.0);

glBegin(GL_QUADS);

glVertex3f(0.2, 0.2,0.0);

glVertex3f(0.8, 0.2,0.0);

glVertex3f(0.6,0.4,0.0);

glVertex3f(0.4,0.4,0.0);

glVertex3f(0.4,0.6,0.0);

glVertex3f(0.6,0.6,0.0);

glVertex3f(0.8,0.8,0.0);

glVertex3f(0.2,0.8,0.0);

glEnd();

glFlush(); 

}

void init()

{

glClearColor(0.0,0.5,0.2,0.8);

}

int main(int argc, char** argv)

{

glutCreateWindow("simple 3D"); 

glutDisplayFunc(display);

init();

glutMainLoop();

}