mpiEventMgrControlPrevious

Declaration

	MPIControl mpiEventMgrControlPrevious(MPIEventMgr eventMgr, MPIControl control)
	Required Header: stdmpi.h

Description

mpiEventMgrControlPrevious returns the previous element prior to "control" on the list. MPIHandleVOID is returned if "control" is the first element on the list, or if "control" is not in the list at all. This function can be used in conjuntion with mpiEventMgrControlLast(...) in order to iterate through the list backwards.

eventMgr	a handle to the EventMgr object.
control	a handle to a Control object.

Return Values
handle	to the motion controller preceding control in the list of motion controllers associated with an EventMgr (eventMgr)
MPIHandleVOID	if eventMgr is invalid if control is the first motion controller
MPIMessageHANDLE_INVALID