API Reference > OdIfcInteroperable Namespace > Classes > IfcDirection Class > IfcDirection Methods > testAttr Method > IfcDirection::testAttr Method (char *)
IfcDirection::testAttr Method (char *)
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Parameters |
Description |
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explicitAttrName |
[in] An ANSI string that contains the attribute name. |
Returns true if the attribute has a value; otherwise, the method returns false (the attribute value is not set).
Retrieves whether the attribute value is set or is unset.
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