Callback for Handling Error Messages

Is there a way to define a callback that would be passed erhor 
messages,instead of having them printed on stderr? I am using 
gdome_di_createDocumentFromUHI.

�Thanks,

John


-- 
John J. Boyer; Executive Director, Chief Software Developer
Computers to Help People, Inc.
http://www.chpi.org
825 East Johnson; Madison, WI 53703