Hello Suhas,
Thank you for your response!
I have updated my program as your said,but just one image control can show the image,another image control doesn't work(show nothing).
whatever index(0 or 1) I set when I use IMAQ USB Enumerate Cameras.vi,the image control constantly show the same image.I think just one is
in work,the another camera doesn't work.
Regards,
Enquan
Striving is without limit!