IDatasourcesMgr2.Lock (METH)ΒΆ

METHOD Lock : SysTypes.RTS_IEC_RESULT

This method locks the concurrent task for monitoring items and allows subsequent accesses to methods of the current instance. To unlock again afterwards, call IDatasourcesMgr2.Unlock

InOut:

Scope

Name

Type

Comment

Return

Lock

SysTypes.RTS_IEC_RESULT

Returns a runtime system error code (see CmpErrors.library) or one of Errors

Input

xBlocking

BOOL

This variable signals the way to do the synchronization. TRUE: the call will be blocking FALSE: the call will be nonblocking and might faile with the error code Errors.ERR_DS_MULTITASKING_LOCKED