Calling an image grab from the main VI in the sub VI.

[spaaw]

Hey,

How can I call an imaqdx image grab in my sub vi from the main one without using queues? I tried using an invoke node but I fail. Help is appreciated.

thanks 

[GuenterMueller]

If your subVI runs side-by-side to your mainVI and that subVI must run a grab on request of the mainVI you will have to use a "communication channel" between these VIs. Using a queue (that takes an image) might be an appropriate approach. You could also use a notification.

You can also move the call to the grab to your mainVI.