formZ SDK | 5.0 API Reference | System | Data Type
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(
tag ) |
Parameters
tag [Input]
tag to check
Availability
5.0.0.0
Function Set
Defined in