gl.py 文件源码

def save(self,file=None):
    self.w.update()      # force image on screen to be current before saving it

    pstring = glReadPixels(0,0,self.xpixels,self.ypixels,
                           GL_RGBA,GL_UNSIGNED_BYTE)
    snapshot = Image.fromstring("RGBA",(self.xpixels,self.ypixels),pstring)
    snapshot = snapshot.transpose(Image.FLIP_TOP_BOTTOM)

    if not file: file = self.file
    snapshot.save(file + ".png")

  # --------------------------------------------------------------------