[cairo] Dimensions of a "surface_t"

[Charles Doutriaux]

Hi,

I'm receiving a cairo_t, I can get the surface via cairo_get_target

Now I would like to know what the dimensions of the "surface" is, if it 
is an image i can use:

     w=cairo_image_surface_get_width(surface);
     h=cairo_image_surface_get_height(surface);

But I also get surface that ar PS, PDF or SVG

All of these are created with dims:
e.g.:
       surface = cairo_ps_surface_create_for_stream(stream_cairo_write,
                            ws->mf.any->fp,
                            XW,YW);

Is it possible to retrieve what the original dims/size were?

Thanks,

C.