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

HRESULT OnWarning(
  IFRDocument*  Sender,
  int           PageIndex,
  BSTR          Warning,
  VARIANT_BOOL* Cancel
);

void OnWarning(
  IFRDocument Sender,
  int        PageIndex,
  string     Warning,
  ref bool   Cancel
);

Sub OnWarning( _
  Sender As IFRDocument,  _
  PageIndex As Integer, _
  Warning As String, _
  ByRef Cancel As Boolean _
)