formZ SDK | 5.0 API Reference | System | Data Type

# fz_tag_is_NULL

Description

Checks whether a tag has the NULL value. A NULL tag usually indicates, that the tag has no value. A NULL tag should never be associated with a valid entity. If it is, then the entity is most likely not legal or has been deleted.

Plugin Prototype

fzrt_boolean fz_tag_is_NULL(

fz_tag_td * | tag )

Parameters

tag [Input]

tag to check

Availability

5.0.0.0

Function Set

fz_type_fset

Defined in

fz_type_api.h