square.cpp

#include <GL/glut.h>

void Display(void) {
	glClearColor(0.0, 0.0, 0.0, 0.0);
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glColor3f(1.0, 1.0, 1.0);
	glBegin(GL_POLYGON);
		glVertex3f(0.25, 0.25, 0.0);
		glVertex3f(0.75, 0.25, 0.0);
		glVertex3f(0.75, 0.75, 0.0);
		glVertex3f(0.25, 0.75, 0.0);
	glEnd();
	glutSwapBuffers();
}


int main(int argc, char* argv[]) {
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
	glutInitWindowPosition(100, 100);	//set the position of Window
	glutInitWindowSize(400, 400);		//set the size of Window
	glutCreateWindow("Square");	//set the title of Window
	glutDisplayFunc(Display);
	glutMainLoop();
	return 0;
}