IAlarmStorageReaderConsumer.LatchVariableRead (METH)¶

METHOD LatchVariableRead

Notification, that a latch variable from TblAlarm has been read and can be processed.

InOut:

Scope	Name	Type	Comment
Input	diWhichRow	DINT	A 0-based index of the row read from TblAlarm.
	usiWhichVariable	USINT	A 1-based index of the latch variable within all latch variables
	liLatchVarValue	LINT	The latch value as “raw” value. If |iLatchVarType| has the value TYPE_STRING, this parameter contains a pointer to the STRING, in case of TYPE_WSTRING this parameter contains a POINTER to a WSTRING
	iLatchVarType	TypeClass	A TypeClass value representing the type of the latch variable
	xValueNULL	BOOL	Indicates, whether NULL is stored in the alarm storage