#include <GL/glut.h>
#include <iostream>
#include <cstdio>
#include <cmath>

using namespace std;

void point(float a, float b)
{
	glColor3f(1.0,0.0,0.0);
	glptSize(32);
	glBegin(GL_ptS);
		glVertex3f(a,b,0.0);
	glEnd();
}
/*
void draw()
{
	//background color
	glClearColor(1.0,1.0,1.0,0);
	glClear(GL_COLOR_BUFFER_BIT);

	// draw
	line(0.0,0.4,0.75,0.75, 10000);
	glFlush();
}
*/
void draw()
{
	glClearColor(1.0,1.0,1.0,1);
	glClear(GL_COLOR_BUFFER_BIT);

	point(0.0,0.0);
	glFlush();
}

int main(int argc1, char **argv)
{
	glutInit(&argc1, argv);
	glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);
	glutInitWindowSize(400,400);
	glutInitWindowPosition(0, 0);
	glutCreateWindow("pts");
	glutDisplayFunc(draw);
	glutMainLoop();

	return 0;
}