Get the value of an NG-CHM property.
Arguments
- hm
The NG-CHM object to get the property value from.
- label
The name of the property to get.
If no property with that name exists, return NULL.
Well-known property labels used by the NG-CHM system include:
* "chm.info.caption" A paragraph describing the NG-CHM's contents (set by user).
* "chm.info.built.time" The date and time the NG-CHM was saved (set by system).
Value
A property value or NULL.
Examples
hm <- chmNew("Empty")
chmProperty(hm, "chm.info.caption")
#> NULL