Mathieu,
I would recommend taking a look at the following Discussion Forum post:
What does NI provide for custom camera file development?
http://forums.ni.com/ni/board/message?board.id=200&message.id=4063&requireLogin=False
This page makes reference to the NI Camera File Generator and provides a link to a location on the NI FTP site where you can download this software. The documentation that installs with that software may be of some help in describing the different attributes and methods that you can use in the camera file.
Please read through that post as well as the documentation that installs with the Camera File Generator.
If you have any additional questions, please let me know.
Regards,
Scott R.
Applications Engineer
National Instruments
Scott Romine
Course Development Engineer
National Instruments