VisuStructElementClientDataExtended (STRUCT)

TYPE VisuStructElementClientDataExtended EXTENDS VisuStructElementClientData : STRUCT

InOut:

Name	Type	Comment	Inherited from
rPrevValue	REAL		VisuStructElementClientData
bVisibilityChanged	BOOL		VisuStructElementClientData
checksumxScale	VisuTypeChecksum		VisuStructElementClientData
checksum	VisuTypeChecksum		VisuStructElementClientData
m_bInvisible	BOOL	to check, if the visibility has changed and we need a different update rect