add
Adds a new category to the store. After this method call, the category object that is passed as a parameter belongs to this landmark store. The category must have a name.
Return
error code (GemError.NoError on success)
Adds a new category to the store. After this method call, the category object that is passed as a parameter belongs to this landmark store. The category must have a name.
error code (GemError.NoError on success)