habiba murgi

#include<windows.h>
#include<GL/glut.h>
void myInit(void)
 {
	glClearColor(1.0, 1.0, 1.0, 0.0);
	glColor3f(0.0f, 0.0f, 0.0f);
	glPointSize(4.0);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(-1.0,1.0,-1.0, 1.0, -1.0, 1.0);
	gluOrtho2D(0.0, 640.0, 0.0, 480.0);
}
void myDisplay(void)
{
	glClear(GL_COLOR_BUFFER_BIT);

	glPointSize(2.0);

	GLint x,y,
	x1=50,
	x2=100,
	y1=100,
	y2=200;
	GLint dx, dy, inc1, inc2, d;

	x = x1;
	y = y1;

	dx = x2-x1;
	dy = y2-y1;

	inc1 = 2 * dy;
	inc2 = 2 * (dy-dx);

	d = inc1 - dx;

	while(x <= x2) {
		glBegin(GL_POINTS);
		{
				   glVertex2i(x,y);
		}

		glEnd();

		x++;

		if(d < 0)	d = d + inc1;
		else {
			d = d + inc2;
			y++;
		}
	}
glFlush();
}
void  main(int argc, char** argv)
{
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
	glutInitWindowSize(640,480);
	glutInitWindowPosition(100,150);
	glutCreateWindow("My First Window");
	glutDisplayFunc(myDisplay);
	myInit();
	glutMainLoop();
}