左右分割と上下分割が切り替え可能なスプリッタウィンドウ (CFlippableSplitterWindow) [WTL] #pragma once // WAC.com Class Liblary for Visual C++ // Copyright (C) WAC.com Inc. All rights reserved. // // This file is a part of the WAC.com Class Liblary. // The use and distribution terms for this software are covered by the // Common Public License 1.0 (http://opensource.org/licenses/cpl.php) // which can be found in the fi