how to change the font of a button and textbox data

["Sudha C Naidu" <sudhacnaidu rediffmail com>]

 
hi!
how do i change font style of a button and text box data?
i am able to change font style of a label using:
font_bold=gdk_font_load("-adobe-courier-bold-r-normal--*-130-*-*-*-*-*-*");
     style = gtk_style_copy(gtk_widget_get_style(widget));
     style->font=font_bold;

but this doesnt work for a button....


sudha