[PyOpenGL-Users] multisample + wglPixelFormat Error

[prætor_alpha <pra...@ya...>]

ok, im trying to set multisampling format inside the
program. i have looked at the modules for
wglpixelformatARB and got some code working, but only
to a point. now my code goes like this:

import pygame
from pygame.locals import *
from OpenGL.GL import *
from OpenGL.GL.ARB.multisample import *
from OpenGL.WGL import *
from OpenGL.WGL.ARB.multisample import *
from OpenGL.WGL.ARB.pixel_format import *

<about 500 lines of code>

# some data brought in from the registry
# Fetch= ((size), fullscreen, bits, depth bits,
multisample samples)
Fetch=((800, 600), 1, 32, 32, 6)

pygame.init()

if Fetch[4]>0:
    pygame.display.set_mode(Fetch[0],
OPENGL|DOUBLEBUF|FULLSCREEN, Fetch[2])
    ppfd=[WGL_SAMPLES_ARB, Fetch[4],
WGL_SAMPLE_BUFFERS_ARB, GL_TRUE, WGL_DEPTH_BITS_ARB,
Fetch[3],
          WGL_RED_BITS_ARB, 8, WGL_GREEN_BITS_ARB, 8,
WGL_BLUE_BITS_ARB, 8, WGL_ALPHA_BITS_ARB, 8, 0]
    pfdclass=PIXELFORMATDESCRIPTOR()
    pfdclass.__repr__()
    for set in range(0, len(ppfd)-1, 2):
        pfdclass.__setattr__(ppfd[set], ppfd[set+1])
    PIXELFORMATDESCRIPTORPtr(ppfd)
    hdc=wglGetCurrentDC()
    ipf=ChoosePixelFormat(hdc, pfdclass.this)
    DescribePixelFormat(hdc, ipf, 0, pfdclass.this)
    SetPixelFormat(hdc, ipf, pfdclass.this)
    pygame.quit()
    pygame.init()
    pygame.display.init()

if Fetch[1]:
    pygame.display.set_mode(Fetch[0],
OPENGL|DOUBLEBUF|FULLSCREEN, Fetch[2])
else:
    pygame.display.set_mode(Fetch[0],
OPENGL|DOUBLEBUF, Fetch[2])

<some more code>


and i get:

Traceback (most recent call last):
  File "3dproject.py", line 523, in ?
    SetPixelFormat(hdc, ipf, pfdclass.this)
WindowsError: [Errno 2000] The pixel format is
invalid.



any help, please??




		
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