《Visual C++ MFC编程实例》配套代码

				/////////////////////////////////////////////////////////////////////
				// Modify View Class.
				/////////////////////////////////////////////////////////////////////
				
				// 1) use ClassWizard to add a UPDATE_COMMAND_UI handler for the command
				void CWzdView::OnUpdateWzdButton(CCmdUI* pCmdUI) 
				{
				
				// 2) setting TRUE causes button to become pressed
				// (a menu command becomes checked)
					pCmdUI->SetCheck(m_bWzd);	
				}
				
				/////////////////////////////////////////////////////////////////////
				// From: Visual C++ MFC Programming by Example by John E. Swanke
				// Copyright (C) 1998 jeswanke. All rights reserved.
				/////////////////////////////////////////////////////////////////////