IDatasourcesMgr.BeginDataConfiguration (METH)ΒΆ

METHOD BeginDataConfiguration : SysTypes.RTS_IEC_RESULT

This method locks the concurrent task for monitoring items and allows subsequent accesses to the configuration of the active. To unlock again afterwards, call IDatasourcesMgr.EndDataConfiguration

Important

Before calling methods like IDatasourcesMgr.UseData or IDatasourcesMgr.ReleaseData it is necessary to do this syncronisation to prevent undefined behaviour.

InOut:

Scope

Name

Type

Comment

Return

BeginDataConfiguration

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