API Reference > OdIfc4x1 Namespace > Classes > IfcTimeOrRatioSelect Class > IfcTimeOrRatioSelect Methods > IfcTimeOrRatioSelect::isIfcDuration Method
IfcTimeOrRatioSelect::isIfcDuration Method
Syntax
C++
bool isIfcDuration();

This is isIfcDuration, a member of class IfcTimeOrRatioSelect.

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