gtk clipboard word 2003

[ChilliMac <ChilliMac freenet de>]

Hello,

I'm developing a python application written in python and using gtk. I 
need to copy a gtk image and paste it into Microsoft Word 2003. Pasting 
to Excel 2003, WordPad, Paint and so on, works perfect, but not to Word 
2003. When i try to paste the image there, just nothing happens.

This is the piece of code, that should do the job:

> pm = gtk.gdk.Pixmap(None, swidth, sheight, 24)
> cc = pm.cairo_create()
> _draw_barcode(cc, barcode, text)
> pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, swidth, sheight)
> pb = pb.get_from_drawable(pm, pm.get_colormap(), 0, 0, 0, 0, swidth,
sheight)
> clipboard = gtk.clipboard_get(gtk.gdk.SELECTION_CLIPBOARD)
> clipboard.set_image(pb)

Does anyone know, how pasting pixbufs to Word 2003 works?

Greetings,
ChilliMac