API Reference > Classes > Export Classes > TB_IFCEXPORT Namespace > Classes > IFCExportInfoPair Class > IFCExportInfoPair Methods > IFCExportInfoPair::IsUnKnown Method
IFCExportInfoPair::IsUnKnown Method
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Syntax
C++
bool IsUnKnown() const;
Description

Check whether the export information is unknown type

Group
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