temporary gtkrc file parsing aka 'sub-themes'

["Brian J. Tarricone" <bjt23 cornell edu>]

Hey all,

I have an app that draws some windows in a special way, and I'm letting 
it be easily themed separately (rather, on top of) gtk's theming.  I'm 
just using normal gtkrc files for the theming, and calling 
gtk_rc_parse() when the user changes the theme.

The problem is this: if the new theme selected doesn't override the same 
things as the previous theme (say, the font), then, after the new theme 
is applied, I see a mix of the old and new themes (new widget colors, 
for example, but with the old font).

Is there any way to make gtk "forget" it's parsed a particular rcfile 
and start from scratch parsing only the defaults?  I've tried 
gtk_rc_reparse_all_for_settings(setings, TRUE) as well as 
gtk_rc_reset_styles(), but neither seem to help.  I've also tried 
loading the file myself and using gtk_rc_parse_string() in the hopes 
that that's less 'persistent', but no luck.

Am I missing something, or just going about this the wrong way?

        -brian