VSConstants.DISP_E_UNKNOWNINTERFACE Field 
Definition
Important
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A return value that indicates that the interface identifier passed in riid is not equal to IID_NULL.
public: int DISP_E_UNKNOWNINTERFACE = -2147352575;int DISP_E_UNKNOWNINTERFACE = -2147352575;public const int DISP_E_UNKNOWNINTERFACE = -2147352575;val mutable DISP_E_UNKNOWNINTERFACE : intPublic Const DISP_E_UNKNOWNINTERFACE As Integer  = -2147352575