Please find below the site, which will help you get idea of the work. This code is written in vc++ which needs to be ported as a mac OS application (no additional functionalities need to be written).
[url removed, login to view] (the client's site)
The existing code uses:
Poco - for graphics
FMOD - for audio
curl - for browser and database interactions
mysql connector for c++
QT - connect to facebook
So these have to be ported as well.