recently-used.xbel

[John Emmas <john creativepost co uk>]

Not the most inspiring subject title but hopefully someone here will be 
able to help.

I'm working on an app which uses a GtkFileChooser dialog.  Let's say I 
use it to open a file.  Next time I launch the GtkFileChooser I'll see 
an entry called "Recently Used" which lists the file I opened last 
time.  As the number of entries increases, they get saved in a 
persistent file called "recently-used.xbel".  This all seems to be a 
feature of gtk+.  There's nothing in the actual app that handles any of 
this.

Currently we're using gtk+2 (as opposed to gtk+3).  Is there any way I 
can modify what gets saved in 'recently-used.xbel'?  For example, if I 
DIDN'T want it to include files with a particular extension, does the 
existing code provide any mechanism for achieving that?  In other words, 
I want the user to be able to select files of that type - but I DON'T 
want them to get listed in 'recently-used.xbel'.

Or alternatively...  if I ONLY wanted it to include files with certain 
extension(s) can I specify that somehow in my application? Thanks.

John