1) 在CMainFrame类中,增加如下三个成员变量。
class CMainFrame : public CFrameWnd
{ private: //自己添加的三个成员变量
WINDOWPLACEMENT m_OldWndPlacement; //用来保存原窗口位置
BOOL m_bFullScreen; //全屏显示标志
CRect m_FullScreenRect; //表示全屏显示时的窗口位置
protected: CMainFrame();
DECLARE_DYNCREATE(CMainFrame)}
2)在资源编辑器中编辑菜单IDR_MAINFRAME。在“View”菜单栏下添加菜单项“Full Screen”。在其属性框中,ID设置为ID_FULL_SCREEN,Caption为“Full Screen”。还可以在工具栏中添加新的工具图标,并使之与菜单项“Full Screen”相关联,即将其ID值也设置为ID_FULL_SCREEN。
3)设计全屏显示处理函数,在CMainFrame类增加上述菜单项ID_FULL_SCREEN消息的响应函数。响应函数如下:
void CMainFrame::OnFullScreen()
{GetWindowPlacement(&m_OldWndPlacement);
CRect WindowRect;
GetWindowRect(&WindowRect);
CRect ClientRect;
RepositionBars(0, 0xffff, AFX_IDW_PANE_FIRST, reposQuery, &ClientRect);
ClientToScreen(&ClientRect);
// 获取屏幕的分辨率
int nFullWidth=GetSystemMetrics(SM_CXSCREEN);
int nFullHeight=GetSystemMetrics(SM_CYSCREEN);
// 将除控制条外的客户区全屏显示到从(0,0)到(nFullWidth, nFullHeight)区域, 将(0,0)和(nFullWidth, nFullHeight)两个点外扩充原窗口和除控制条之外的 客户区位置间的差值, 就得到全屏显示的窗口位置
m_FullScreenRect.left=WindowRect.left-ClientRect.left;
m_FullScreenRect.top=WindowRect.top-ClientRect.top;
m_FullScreenRect.right=WindowRect.right-ClientRect.right+nFullWidth;
m_FullScreenRect.bottom=WindowRect.bottom-ClientRect.bottom+nFullHeight;
m_bFullScreen=TRUE; // 设置全屏显示标志为 TRUE
// 进入全屏显示状态
WINDOWPLACEMENT wndpl;
wndpl.length=sizeof(WINDOWPLACEMENT);
wndpl.flags=0;
wndpl.showCmd=SW_SHOWNORMAL;
wndpl.rcNormalPosition=m_FullScreenRect;
SetWindowPlacement(&wndpl);}
4)重载CMainFrame类的OnGetMinMaxInfo函数,在全屏显示时提供全屏显示的位置信息。
void CMainFrame::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
{if(m_bFullScreen)
{lpMMI->ptMaxSize.x=m_FullScreenRect.Width();
lpMMI->ptMaxSize.y=m_FullScreenRect.Height();
lpMMI->ptMaxPosition.x=m_FullScreenRect.Width();
lpMMI->ptMaxPosition.y=m_FullScreenRect.Height();
// 最大的Track尺寸也要改变
lpMMI->ptMaxTrackSize.x=m_FullScreenRect.Width();
lpMMI->ptMaxTrackSize.y=m_FullScreenRect.Height();
}CFrameWnd::OnGetMinMaxInfo(lpMMI) ;
}
class CMainFrame : public CFrameWnd
{ private: //自己添加的三个成员变量
WINDOWPLACEMENT m_OldWndPlacement; //用来保存原窗口位置
BOOL m_bFullScreen; //全屏显示标志
CRect m_FullScreenRect; //表示全屏显示时的窗口位置
protected: CMainFrame();
DECLARE_DYNCREATE(CMainFrame)}
2)在资源编辑器中编辑菜单IDR_MAINFRAME。在“View”菜单栏下添加菜单项“Full Screen”。在其属性框中,ID设置为ID_FULL_SCREEN,Caption为“Full Screen”。还可以在工具栏中添加新的工具图标,并使之与菜单项“Full Screen”相关联,即将其ID值也设置为ID_FULL_SCREEN。
3)设计全屏显示处理函数,在CMainFrame类增加上述菜单项ID_FULL_SCREEN消息的响应函数。响应函数如下:
void CMainFrame::OnFullScreen()
{GetWindowPlacement(&m_OldWndPlacement);
CRect WindowRect;
GetWindowRect(&WindowRect);
CRect ClientRect;
RepositionBars(0, 0xffff, AFX_IDW_PANE_FIRST, reposQuery, &ClientRect);
ClientToScreen(&ClientRect);
// 获取屏幕的分辨率
int nFullWidth=GetSystemMetrics(SM_CXSCREEN);
int nFullHeight=GetSystemMetrics(SM_CYSCREEN);
// 将除控制条外的客户区全屏显示到从(0,0)到(nFullWidth, nFullHeight)区域, 将(0,0)和(nFullWidth, nFullHeight)两个点外扩充原窗口和除控制条之外的 客户区位置间的差值, 就得到全屏显示的窗口位置
m_FullScreenRect.left=WindowRect.left-ClientRect.left;
m_FullScreenRect.top=WindowRect.top-ClientRect.top;
m_FullScreenRect.right=WindowRect.right-ClientRect.right+nFullWidth;
m_FullScreenRect.bottom=WindowRect.bottom-ClientRect.bottom+nFullHeight;
m_bFullScreen=TRUE; // 设置全屏显示标志为 TRUE
// 进入全屏显示状态
WINDOWPLACEMENT wndpl;
wndpl.length=sizeof(WINDOWPLACEMENT);
wndpl.flags=0;
wndpl.showCmd=SW_SHOWNORMAL;
wndpl.rcNormalPosition=m_FullScreenRect;
SetWindowPlacement(&wndpl);}
4)重载CMainFrame类的OnGetMinMaxInfo函数,在全屏显示时提供全屏显示的位置信息。
void CMainFrame::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
{if(m_bFullScreen)
{lpMMI->ptMaxSize.x=m_FullScreenRect.Width();
lpMMI->ptMaxSize.y=m_FullScreenRect.Height();
lpMMI->ptMaxPosition.x=m_FullScreenRect.Width();
lpMMI->ptMaxPosition.y=m_FullScreenRect.Height();
// 最大的Track尺寸也要改变
lpMMI->ptMaxTrackSize.x=m_FullScreenRect.Width();
lpMMI->ptMaxTrackSize.y=m_FullScreenRect.Height();
}CFrameWnd::OnGetMinMaxInfo(lpMMI) ;
}
{
cs.hMenu = NULL;
return CFrameWnd::PreCreateWindow ( cs );
}
2.CMainFrame* pFrame = ( CMainFrame* )(AfxGetApp ()->m_pMainwnd );
pFrame->Modify ( WS_CAPTION , 0 );
pFrame->Modify ( WS_THICKFRAME , 0 );
pFrame->SetMenu ( NULL );
pFrame->ShowWindow ( WS_MAXIMIZE );其他的简单代码可以自己写的。
BOOL m_bFullScreen; //全屏幕显示标志
CRect m_FullScreenWindowRect; //全屏幕显示窗口Rect
WINDOWPLACEMENT 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 toolbar\n");
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 CMainFrame::OnUpdateMenuFullscreen(CCmdUI* pCmdUI)
{//更新菜单的状态
pCmdUI->Enable();
pCmdUI->SetCheck(m_bFullScreen);
}