Need help on a project...

In the attached draft, I want to send one of the two channels (currently) to a Zebra printer. I just got stuck where I want to select the string to display (in the Process - Run.VI class), I think the problem is with the overall architecture, but I don't know how to fix it. If someone could look over it and give me feedback that would be appreciated.

In Main.vi inistantiate the correct class type for the printer you are working with. There are different ways to do this, but I advise to use a plugin approach. In this way, you can add new printers in the future without changing your code. Party plugin architecture would have a method for choosing the corect type based on what plugins are available. This could be done either through a configuration file specifying the type or a user selection.

Your Run.vi would simply have the methods of the parent class. The class on the part of the input connector would be the parent of the class type. Wiring in a class of the child will work. Specific methods (you need to be substituted) by the child classes would be configured for dynamic distribution. This allows LabVIEW choosing the right method when running.

The other stuff I said was more general and not specific to your application.

Tags: NI Software

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