Thank you Matt, I found with the help of 'git grep', a great search tool, thanks for the tip, I will use from now on. -- View this message in context: http://itk-users.7.n7.nabble.com/Function-GetOpenCLSource-I-can-not-find-it-tp36843p36848.html Sent from the ITK - Users mailing list archive at Nabble.com.