the semantic webpage says that semantic supports c#.  i am using ECB with emacs 21.3 which i believe uses semantic in the background (?). 
when i have the c# #region and #endregion preprocessor directives, the ecb parser fails to parse the file.  how can i add support for these directives into semantic, so that ecb correctly handles them.
ps: which file does semantic use to parse c#?