学步园

切换到后台：

TApaTask task(CEikonEnv::Static()->WsSession());<br /> task.SetWgId(CEikonEnv::Static()->RootWin().Identifier());<br /> task.SendToBackground();

切换到前台：

TApaTask task( CEikonEnv::Static()->WsSession());<br /> task.SetWgId( CEikonEnv::Static()->RootWin().Identifier());<br /> //Foreground run<br /> task.BringToForeground();<br /> ActivateL();