SHFullScreen(hWnd, SHFS_HIDETASKBAR | SHFS_HIDESTARTICON | SHFS_HIDESIPBUTTON );
RECT rc;
SetRect( &rc, 0, 0, GetSystemMetrics( SM_CXSCREEN ), GetSystemMetrics( SM_CYSCREEN ) );
SetWindowPos( hWnd, 0, 0,0, rc.right-rc.left,rc.bottom-rc.top, SWP_SHOWWINDOW );
ShowWindow(FindWindow( _T("HHTaskBar"), 0 ),SW_HIDE);
ShowWindow(FindWindow( _T("menuworker"), 0 ),SW_HIDE);
ShowWindow(FindWindow( _T("MS_SIPBUTTON"), 0 ),SW_HIDE);