MFC實現(xiàn)全屏功能的代碼

很多的播放器都有快捷鍵控制窗口以全屏幕的方式顯示。給應(yīng)用程序加上全屏幕的功能，并不需要很多的代碼，比如給一個基于對話框的應(yīng)用程序加上全屏功能只需要以下少量代碼就可以工作了。

void CFullScreenDlg::FullScreenView(void)

{

RECT rectDesktop;

WINDOWPLACEMENT wpNew;

if (!IsFullScreen())

{

// We'll need these to restore the original state.

GetWindowPlacement (&m_wpPrev);

//Adjust RECT to new size of window

::GetWindowRect ( ::GetDesktopWindow(), &rectDesktop );

::AdjustWindowRectEx(&rectDesktop, GetStyle(), FALSE, GetExStyle());

// Remember this for OnGetMinMaxInfo()

m_rcFullScreenRect = rectDesktop;

wpNew = m_wpPrev;

wpNew.showCmd = SW_SHOWNORMAL;

wpNew.rcNormalPosition = rectDesktop;

m_bFullScreen=true;

}

else

{

// 退出全屏幕時恢復(fù)到原來的窗口狀態(tài)

m_bFullScreen=false;

wpNew = m_wpPrev;

}

SetWindowPlacement ( &wpNew );

}

void CFullScreenDlg::OnGetMinMaxInfo(MINMAXINFO* lpMMI)

{

// TODO: Add your message handler code here and/or call default

if (IsFullScreen())

{

lpMMI->ptMaxSize.y = m_rcFullScreenRect.Height();

lpMMI->ptMaxTrackSize.y = lpMMI->ptMaxSize.y;

lpMMI->ptMaxSize.x = m_rcFullScreenRect.Width();

lpMMI->ptMaxTrackSize.x = lpMMI->ptMaxSize.x;

}

CDialog::OnGetMinMaxInfo(lpMMI);

}

bool CFullScreenDlg::IsFullScreen(void)

{

// 記錄窗口當前是否處于全屏狀態(tài)

return m_bFullScreen;

}