Best practices for the .ini file, reading

Hello LabViewers

I have a pretty big application that uses a lot of communication material of various devices. I created an executable file, because the software runs on multiple sites. Some settings are currently hardcoded, others I put in a file .ini, such as the focus of the camera. The thought process was that this kind of parameters may vary from one place to another and can be defined by a user in the .ini file.

I would now like to extend the application of the possibility of using two different versions of the device hardware key (an atomic Force Microscope). I think it makes sense to do so using two versions of the .ini file. I intend to create two different .ini files and a trained user there could still adjust settings, such as the focus of the camera, if necessary. The other settings, it can not touch. I also EMI to force the user to select an .ini to start the executable file using a dialog box file, unlike now where the ini (only) file is automatically read in. If no .ini file is specified, then the application would stop. This use of the .ini file has a meaning?

My real question now solves on how to manage playback in the sector of .ini file. My estimate is that between 20-30 settings will be stored in the .ini file, I see two possibilities, but I don't know what the best choice or if im missing a third

(1) (current solution) I created a vi in reading where I write all the .ini values to the global variables of the project. All other read only VI the value of global variables (no other writing) ommit competitive situations

(2) I have pass the path to the .ini file in the subVIs and read the values in the .ini file if necessary. I can open them read-only.

What is the best practice? What is more scalable? Advantages/disadvantages?

Thank you very much

1. I recommend just using a configuration file.  You have just a key to say what type of device is actually used.  This will make things easier on the user, because they will not have to keep selecting the right file.

2. I use the globals.  There is no need to constantly open, get values and close a file when it is the same everywhere.  And since it's just a moment read at first, globals are perfect for this.

Tags: NI Software

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