MFC隐藏显示任务栏，菜单栏及输入法面板

1、隐藏

// 隐藏命令栏
HWND hWnd = SHFindMenuBar(m_hWnd);
::CommandBar_Show(hWnd, FALSE);

// 隐藏任务栏
SHFullScreen(m_hWnd, SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON|SHFS_HIDESTARTICON);

//把窗体设为前台

SetForegroundWindow();

//隐藏后把窗体设置为全屏

CRect rcScreen;
rcScreen.SetRect( 0, 0, GetSystemMetrics( SM_CXSCREEN ),

GetSystemMetrics( SM_CYSCREEN ));
MoveWindow(&rcScreen, TRUE);

//隐藏输入法面板

BOOL fRes = FALSE;
SIPINFO si;
memset( &si, 0, sizeof( si ) );
si.cbSize = sizeof( si );
if( SHSipInfo( SPI_GETSIPINFO, 0, &si, 0 ) )
{
si.fdwFlags &= ~SIPF_ON;
fRes = SHSipInfo( SPI_SETSIPINFO, 0, &si, 0 );
}

或者

SIPINFO si;
memset(&si, 0, sizeof(SIPINFO));
si.cbSize = sizeof(SIPINFO);
SHSipInfo(SPI_GETSIPINFO, 0, &si, 0);
if (si.fdwFlags & SIPF_ON)
{
si.cbSize = sizeof(SIPINFO);
si.fdwFlags = SIPF_OFF;
SHSipInfo(SPI_SETSIPINFO, 0, &si, 0);
}

2、显示

// 显示任务栏和输入法图标和Start图标
SHFullScreen(m_hWnd, SHFS_SHOWTASKBAR | SHFS_SHOWSTARTICON | SHFS_SHOWSIPBUTTON);

//只显示任务栏
HWND hWndTaskBar = ::FindWindow(TEXT("HHTaskBar"), NULL);
if (hWndTaskBar != NULL)
{
::ShowWindow(hWndTaskBar, SW_SHOW);
}

//显示命令栏（此时只显示了输入法图标，因为窗体的高度已经变化，可以通过重新设置窗体大小把该命令栏显示在窗口中）

HWND hWnd = SHFindMenuBar(m_hWnd);
::CommandBar_Show(hWnd, TRUE);

//打开输入法面板

BOOL fRes = FALSE;
SIPINFO si;
memset( &si, 0, sizeof( si ) );
si.cbSize = sizeof( si );
if( SHSipInfo( SPI_GETSIPINFO, 0, &si, 0 ) )
{
si.rcSipRect.top -= 20;
si.rcSipRect.bottom -= 20;
si.rcSipRect.left = 20;
si.rcSipRect.right = 200;
si.fdwFlags &= ~SIPF_LOCKED;
si.fdwFlags &= ~SIPF_DOCKED;
si.fdwFlags |= SIPF_ON;
fRes = SHSipInfo( SPI_SETSIPINFO, 0, &si, 0 );
}