IP,
I assume you are talking about updating changes from front panel controls/indicators, and that you want these new changes to be the new default settings.
I find 2 methods to do such:
(1) the Invoke node method / set as Default. There are examples on this site to see how this works (just search and you'll easily find them); however, I have found that this method requires a relatively good coding effort - basically because you are changing pre-programmed settings in real-time - not something super natural to default values (hence, they're called default values).
(2) Use configuration files. This is what I usually opt for. Simply have basic text files that are read upon each new running of your program. The key is to write to (update) these files upon
program termination. For this, I 'sense' if changes have occurred (compare new/old via shift registers, etc.) and if there are changes, write them to the necessary data field in the config file. Another benefit with config text files, though small, is that some users want to print or manage these files outside of LAbVIEW (there is no access to this with invoke nodes).
Good luck with it,
Doug
