IFRPageEvents インターフェイスの OnWarning メソッド

HRESULT OnWarning(
  IFRPage*      Sender,
  BSTR          Warning,
  VARIANT_BOOL* Cancel
);

void OnWarning(
  IFRPage   Sender,
  string   Warning,
  ref bool Cancel
);

Sub OnWarning( _
  Sender As IFRPage, _
  Warning As String, _
  ByRef Cancel As Boolean _
)