ShowFullScreen

void CStudentDlg::ShowFullScreen()

{

GetWindowPlacement(&wndPre);

m_fullFlag = 1;

CRect winRect;

CRect cliRect;

int fullWidth=0;

int fullHeigth=0;

GetWindowRect(&winRect);

RepositionBars(0,0xffff,AFX_IDW_PANE_FIRST,reposQuery,&cliRect);

ClientToScreen(&cliRect);

// 获取屏幕的分辨率 

fullWidth=GetSystemMetrics(SM_CXSCREEN);

fullHeigth=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=winRect.left-cliRect.left;

m_fullScreenRect.top=winRect.top-cliRect.top;

m_fullScreenRect.right=winRect.right-cliRect.right+fullWidth;

m_fullScreenRect.bottom=winRect.bottom-cliRect.bottom+fullWidth;

//全屏显示

WINDOWPLACEMENT wndPl;

wndPl.length=sizeof(WINDOWPLACEMENT);

wndPl.flags=0;

wndPl.showCmd=SW_SHOWNORMAL;

wndPl.rcNormalPosition=m_fullScreenRect;

SetWindowPlacement(&wndPl);

}

void CStudentDlg::OnShow()

{

if (m_fullFlag != 1)

{

ShowFullScreen();

}

WINDOWPLACEMENT wndPl;

wndPl.length=sizeof(WINDOWPLACEMENT);

wndPl.flags=0;

wndPl.showCmd=SW_SHOWNORMAL;

wndPl.rcNormalPosition=m_fullScreenRect;

SetWindowPlacement(&wndPl);

int res=0;

int cx=GetSystemMetrics(SM_CXSCREEN);

int cy=GetSystemMetrics(SM_CYSCREEN);

CClientDC dc(this);

StretchDIBits(dc.m_hDC,0,0,cx,cy,0,0,cx,cy,m_buf,m_bmpHead.dibInfo,DIB_RGB_COLORS,SRCCOPY);

}