Inter-Application Communication on Windows

[Richard Gaskin]

Dave wrote:
> I have an application that periodically creates or updates an SQLite  
> database (actually there are lots of databases (separate SQLite  
> files), but only one is worked on at a time) and then sends the  
> results to the server. This process can take upwards of 15 minutes to  
> complete. In the meantime I want to be able to still use the  
> application to do other things (such as create playlists in iTunes).

I'd use sockets, or polling for a file.  While polling a file's content 
can eat some cycles, polling for the existence of a file is pretty darn 
fast.  Given the scenario you describe, where you're not really 
expecting a result for several minutes, you could probably get away with 
polling for a file every few seconds.  Cheap, simple, reasonably efficient.

-- 
  Richard Gaskin
  Managing Editor, revJournal
  _______________________________________________________
  Rev tips, tutorials and more: http://www.revJournal.com