Value that determines the kind of information required. This
information will only be available in the specified contexts of
use. In all other contexts, an empty string will be
returned. Although designed to support different possible
uses, there is currently only one:
- DGM_MARR_INSTANCE
- There are several options that control the display of marriage
and spouse information in Family Historian diagrams. You
can, for example, opt to display 'remarriage' boxes for
Individuals who marry more than once. Instead of repeating
the Individual's name in these remarriage boxes, it may look
better to simply indicate by a number, which marriage the box
refers to. Use the GetContextInfo function, with the
DGM_MARR_INSTANCE option, to display the appropriate marriage
number. Is only applicable to remarriage boxes in diagrams.