Get Tag Information VI

Owning Palette: Data Type Parsing VIs

Requires: Base Development System

Returns the tag data type stored in variant. This VI returns an error if variant does not contain a tag.

A tag is a data type for system resources and is similar to a refnum. A tag is allocated in a static manner when a VI begins execution, while a refnum is dynamically allocated. One example of a tag is a DAQmx Device Name.

Note  The tag data type is installed with some add-ons, such as NI-DAQmx.

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	variant specifies the variant data from which you want to retrieve data type information.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	tag type returns the tag data type. For example, a DAQmx Device Name returns a tag type of kDAQmxDeviceTagType.
	error out contains error information. This output provides standard error out functionality.