[Glade-users] PNG support in glade?

[brendan tjs org (brendan tjs org)]

Anyone know how I would go about using a png as an icon pixmap? Whenever I try to add one, I get a "Couldn't 
create pixmap from file" error, and any resulting program also fails to load them. Are PNGs not supported by 
GTK?

I'm fairly certain these are valid PNG files; they come from /usr/share/icons/hires/

Oh, one more thing: does anyone know how I could go about creating a seek bar using glade?

Thanks,
Brendan D-G