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Example of High level snap or low level doeasn't work properly. Imaq Explorer work's perfectly with snap image. What is problem ?

I was trying to build app using code of examples.(BTW include in imaq 2.6. Examples : HLsnap.c or LLsnap.c doesn't work properly. Image is black and white and deformed. There are extra wraped lines , and image seems to be repeated. What is wrong ? Imaq explorer standard program with imaq 2.6 work's perfectly.
help me please . (pci-1411)
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Make sure that you are setting the correct bit depth in your program. What kind of camera are you using? Check the settings in MAX and be sure that you are not overwriting those in your program as well. Do any of the example programs work correctly? You can also try the program attached to the following discussion.
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=50650000000800000048100000&ECategory=Vision

Hope this helps!
-Julie
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I'm trying all example programs, those with imaq 2.6.Unfortunetly none of above didn't work. My bit depth was set correctly, I suppose. Tracking my program step by step I can say it was correct. I'll try to use attached example.
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in Addition,
none of example work's correctly. Only Imaq Explorer works well, 😞 Camera type : Cohu 3811. Bits depth is ok.
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this example is based on example of LLSnap. There are no diffrences. 😞
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