'宣言 Protected Overridable Sub OnDocumentEnded()
'使用法 Dim instance As C1PrintDocument instance.OnDocumentEnded()
protected virtual void OnDocumentEnded()
'宣言 Protected Overridable Sub OnDocumentEnded()
'使用法 Dim instance As C1PrintDocument instance.OnDocumentEnded()
protected virtual void OnDocumentEnded()