import sys
from OpenGL.GLUT import *
from OpenGL.GL import *
from OpenGL.GLU import *


def draw():
	glClear(GL_COLOR_BUFFER_BIT)
	glBegin(GL_TRIANGLES)
	glVertex2f(0.0, 0.0)
	glVertex2f(0.4, 0.0)
	glVertex2f(0.8, 0.8)
	glEnd()
	glutSwapBuffers()

def keyboard(key, x, y):
	if key == chr(27):
		sys.exit(0)

def mouseButton(button, state, x, y):
	if state == GLUT_DOWN:
		print 'Button', button, 'pressed at', x, y

def idle():
	glutPostRedisplay()

glutInit([])
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB)
glutInitWindowSize(400, 400)
glutInitWindowPosition(0,0)
glutCreateWindow(sys.argv[0])
glutDisplayFunc(draw)
glutKeyboardFunc(keyboard)
glutIdleFunc(idle)
glutMouseFunc(mouseButton)
glutMainLoop()