USB Camera and Low level VIs

Hello all,
I am beginner in LabView and I am seeking help for the following:
I need to adapt a vi using a regular (analog) camera so to start using a USB camera instead. When I viewed the block diagram (which is really complicated for me) I noticed that the original programmer used the low level IMAQ VI's (e.g. IMAQ intil.vi and IMAQ configure Buffer.vi) to communicate, control and acquire images from the camera. Now, I am really confused, does these VIs work with all cameras? If not can I replace them with the IMAQ USB VIs'? How would this affect the other VIs that depends on the out come of the replaced ones? Finally, I would be glad if anyone can point out things to read so to acquire more knowledge about this subject?
I know I asked much but really I want to learn these things as fast as possible
Best Regards
Mohammed

Hello TomBaum,
First, thanks for responding, really appreciate it.
Sorry that I cant send the Vi itself yet I have attached a picture of the part
that I want to modify (red rectangle).
All I want to do is using USB camera instead of the one used now! so does
these low level VIs work with the USB camera
or I should use the USB camera VIs which will mean that i will end up with many
broken wires since low-level VIs has
different number on inputs that the USB camera VIs
Hope this can give you an idea.
P.S. in case you will wonder about the sequence structure; it is only the
camera setting that I am interested and it is the one shown in the
structure
All the broken wires in the picture are going into a very larg while loop with
many other VIs.
Regards
Attachments:
pic1.PNG ‏48 KB

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