Attaches a style to a window; this process allocates the
colors and creates the GC's for the style - it specializes
it to a particular visual and colormap. The process may
involve the creation of a new style if the style has already
been attached to a window with a different style and colormap.
Since this function may return a new object, you have to use it
Either style, or a newly-created GtkStyle. If the style is newly created, the style parameter will be unref'ed, and the new style will have a reference count belonging to the caller.
Attaches a style to a window; this process allocates the colors and creates the GC's for the style - it specializes it to a particular visual and colormap. The process may involve the creation of a new style if the style has already been attached to a window with a different style and colormap. Since this function may return a new object, you have to use it