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how to make VI like "+" ,"-" functions in Labview


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When creating a source distribution you can remove the front panel and block diagram in the source file settings:

2018-01-11_09-39-02.png

Be aware that removing the block diagram prevents you from using the VI on a newer version of LabVIEW as it cannot be recompiled.

Edit: You might find this article helpful: https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019LY1SAM

Edited by LogMAN
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If you are looking to protect your IP you can apply a block diagram password.  Hackers have ways of defeating them but it will keep out the majority of developers from copying your code.

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18 hours ago, kaly2002 said:

The program is ok, but the icon is missing.

Yes, I can see how that could be an issue. Unfortunately I'm not aware of a solution to fix the icon. The standard functions like Addition, Subtraction, etc... are not really VIs. They are written in C or whatever language they use to program LV nowadays. So, they can do stuff we can't.

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On 2018/1/12 at 5:54 PM, LogMAN said:

Yes, I can see how that could be an issue. Unfortunately I'm not aware of a solution to fix the icon. The standard functions like Addition, Subtraction, etc... are not really VIs. They are written in C or whatever language they use to program LV nowadays. So, they can do stuff we can't.

it‘s so bad。 But thank you very much!

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