Not A Number/Path/Refnum? function
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| Object information | |
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| Owning palette(s) | Comparison palette |
| Type | Function |
| Requires | Basic Development Environment |
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The Not A Number/Path/Refnum? function returns TRUE if number/path/refnum is not a number (NaN), <Not a Path>, or not a refnum. Otherwise, this function returns FALSE.
Use this function to make sure a reference to an object, such as a VI, application, or control, still resides in system memory and was not closed.
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Usage
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