EventClass (GVL)

Event class

InOut:

Scope	Name	Type	Initial	Comment
Constant	EVTCLASS_NONE	UINT	0	No class OR invalid
	EVTCLASS_ALL	UINT	16#FFFF	All classes
	EVTCLASS_INFO	UINT	16#1	Information
	EVTCLASS_WARNING	UINT	16#2	Warning
	EVTCLASS_ERROR	UINT	16#4	Error
	EVTCLASS_EXCEPTION	UINT	16#8	Exception
	EVTCLASS_VENDOR_SPEC	UINT	16#1000	Vendor specific. Can be used for own event classes