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Add a native File Open event

Status: New

For modern application development we need better methods to detect wheter our application is called to open a file.

Currently the only help NI gives is based on command line parameters. And we need to jump through loops to get it working to react on opening a file when the program allready runs.


This is a major showstopper in creating professional applications.


LabVIEW 8.2 had a hidden event for getting this event, which unfortunatly doesn't work in later versions.



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I would agree with that.

This needs a lot more attention than it has gotten!


@TCPlomp wrote:
LabVIEW 8.2 had a hidden event for getting this event, which unfortunatly doesn't work in later versions.

Actually it is not true, I have just tested "OS Open Document" event on LV 2011 and 2014 and it run like a clockwork. To achieve this you should just have proper registry keys set, it has been posted here, for example. That thread also contains alternative method of DDE interception, so you would have small additional functionality: your application may know if it's exe file is being double-clicked when it's already running. And, of course, it works with file associations as well.