IMAQ AVI - What is "frame read lookahead"?

[MOI_maker]

Hi,

I'm using The IMAQ AVI Read Frame function, and just wondering what the "frame read lookahead" input actually does. The documentation is very vague.

Thanks

[mikeporter]

What is vague about it? What additional information do you need?

Mike...

[bob75]

Haha, guess I'm being a bit vague myself.

The documentation says "Setting this parameter to be greater than 0 may enable NI Vision to read some AVI files it could not read otherwise". In what situations would it be useful to set this parameter greater than zero, and how exactly does it help with reading AVI files?

I ask because I was having trouble reading some AVIs. I actually fixed the problem, but I'm still curious for future reference.

[bob75]

Sorry, this is the same person. I have two accounts.