Converts a variant's value to a WideString.
function VarToWideStrDef(const V: Variant; const ADefault: WideString): WideString;
BSTR VarToWideStrDef(const Variant V, const BSTR ADefault);
Variants
VarToWideStrDef converts the data in the variant V to a WideString and returns the result. If the variant has a null value, VarToWideStrDef returns ADefault.
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