VC 为MFC应用程序添全屏幕显示功能.doc

VC+编程技术连载VC+为MFC应用程序添全屏幕显示功能 2007-06-11 09:42:57 VC+编程技术连载VC+为MFC应用程序添全屏幕显示功能在CMainFrame类中添加下列成员变量和成员函数(使用ClassWizard)，下面是这些变量和函数的功能说明：成员变量：BOOL m_bFullScreen; /全屏幕显示标志CRect m_FullScreenWindowRect; /全屏幕显示窗口RectWINDOWPLACEMENT m_wpPrev; /用于保存正常视图时的窗口位置信息CToolBar * m_wndFullScreenBar; /全屏幕显示时的浮动工具条成员函数：void OnMenuFullscreen(); /全屏幕显示的处理函数void OnGetMinMaxInfo(); /捕获WM_GETMINMAXINFO消息以便允许你增加窗口大小void OnUpdateViewFullScreen(); /更新“全屏幕显示”菜单的状态源码 void CMainFrame:OnMenuFullscreen()/全屏幕显示的处理函数RECT rectDesktop;WINDOWPLACEMENT wpNew; if (m_bFullScreen)/全屏幕显示模式/隐藏工具条和状态条m_wndStatusBar.ShowWindow(SW_HIDE);m_wndToolBar.ShowWindow(SW_HIDE);/保存正常视图时的窗口位置信息以便恢复原来状态GetWindowPlacement (&m_wpPrev);m_wpPrev.length = sizeof m_wpPrev;/调整RECT为新的窗口尺寸:GetWindowRect ( :GetDesktopWindow(), &rectDesktop );:AdjustWindowRectEx(&rectDesktop, GetStyle(), TRUE, GetExStyle();/保存RECT以便OnGetMinMaxInfo()使用m_FullScreenWindowRect = rectDesktop;wpNew = m_wpPrev;wpNew.showCmd = SW_SHOWNORMAL;wpNew.rcNormalPosition = rectDesktop;/生成新的工具条m_wndFullScreenBar=new CToolBar;if(!m_wndFullScreenBar-Create(this, CBRS_SIZE_DYNAMIC|CBRS_FLOATING)| !m_wndFullScreenBar-LoadToolBar(IDR_FULLSCREEN)TRACE0(Failed to create toolbarn);return; / fail to create /不允许工具条停泊m_wndFullScreenBar-EnableDocking(FALSE);m_wndFullScreenBar-SetWindowPos(0,100,100,0,0,SWP_NOSIZE|SWP_NOZORDER|SWP_NOACTIVATE|SWP_SHOWWINDOW);m_wndFullScreenBar-SetWindowText(_T(全屏幕显示);FloatControlBar(m_wndFullScreenBar, CPoint(100,100);m_bFullScreen=TRUE;else/正常显示模式/删除全屏幕工具条m_wndFullScreenBar-DestroyWindow();delete m_wndFullScreenBar; m_bFullScreen=FALSE;/恢复工具条和状态条m_wndStatusBar.ShowWindow(SW_SHOWNORMAL);m_wndToolBar.ShowWindow(SW_SHOWNORMAL);wpNew = m_wpPrev;/设置窗口显示状态SetWindowPlacement ( &wpNew );void CMainFrame:OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)if (m_bFullScreen)lpMMI-ptMaxSize.y = m_FullScreenWindowRect.Height();lpMMI-ptMaxTrackSize.y = lpMMI-ptMaxSize.y;lpMMI-ptMaxSize.x = m_FullScreenWindowRect.Width();lpMMI-ptMaxTrackSize.x = lpMMI-ptMaxSize.x;void