API Reference > OdDAI Namespace > Classes > ApplicationInstance Class > ApplicationInstance Methods > testAttr Method
testAttr Method
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This is the overview for the testAttr method overload.

Overload List
ApplicationInstance::testAttr (AttributePtr&) 
Retrieves whether the attribute value is set or is unset.  
ApplicationInstance::testAttr (char *) 
Retrieves whether the attribute value is set or is unset.  
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