Indicates whether the specified variant is an error variant; optionally converts variant back to HRESULT.
function VarIsError(const V: Variant; out AResult: HRESULT): Boolean; overload; function VarIsError(const V: Variant): Boolean; overload;
Boolean VarIsError(const Variant V, HRESULT AResult); Boolean VarIsError(const Variant V);
Variants
VarIsError returns true if the given variant is an Error variant (type varError). If AResult is specified, it is set to the corresponding result code.
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