class Display_GTK:
 def __init__( self ):
  global WIDTH, HEIGHT
  self._img_resized = cv.cvCreateImage( cv.cvSize( WIDTH , HEIGHT ) ,8,3)
 def display_gtk( self , str , frame , width=0 , height=0):
  if frame:
   cv.cvResize( frame , self._img_resized , cv.CV_INTER_LINEAR);
   pix = gtk.gdk.pixbuf_new_from_data( self._img_resized.imageData,
         gtk.gdk.COLORSPACE_RGB,
         False,
         8,
         self._img_resized.width,
         self._img_resized.height,
         self._img_resized.width*self._img_resized.nChannels)
   wid = self.wTree.get_widget(str)
  if wid is not None : wid.set_from_pixbuf(pix)
  gc.collect()