API Reference > OdDAI Namespace > Classes > OdSDAIInstance Class > OdSDAIInstance Methods > testAttr Method > OdSDAIInstance::testAttr Method (AttributePtr&)
OdSDAIInstance::testAttr Method (AttributePtr&)
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Parameters |
Description |
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const AttributePtr& attribute |
[in] A smart pointer to an instance of the Attribute class that represents the attribute type. |
true if the attribute has a value; otherwise, the method returns false (it means that the attribute value is not set).
Retrieves whether the attribute value is set or is unset.
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