OldLinkModeConstants

Legacy DDE link-mode values retained for compatibility with very early versions of Visual Basic. New code should use LinkModeConstants.

Constant	Value	Description
vbHot	1	The control updates whenever the source data changes (“hot” link).
vbServer	1	The form acts as a DDE source.
vbCold	2	The control updates only when explicitly requested (“cold” link).