Symbian之源码分析之EikEnv.cpp

核心提示：iEikEnvExtra->iDefaultScreenNumber = aCommandLine.DefaultScreen();else{ //否则用apparc保存的默认screenif (!err)err = apparcServer.GetDefaultScreenNumber(iEikEnvExtra

iEikEnvExtra->iDefaultScreenNumber = aCommandLine.DefaultScreen();

else

{ //否则用apparc保存的默认screen

if (!err)

err = apparcServer.GetDefaultScreenNumber(iEikEnvExtra->iDefaultScreenNumber, RProcess().Type()[2]);

if (err)

iEikEnvExtra->iDefaultScreenNumber = 0;

}

//关闭AppArc server session

CleanupStack::PopAndDestroy(&apparcServer);

//创建应用程序环境，调用CEikonEnv::ConstructL()

const TBool startAppInForeground = (command!=EApaCommandBackground && command!=EApaCommandBackgroundAndWithoutViews);

ConstructL(startAppInForeground, aCommandLine.ParentWindowGroupID());

……

}

CEikEnv::ConstructL()

{

//调用基类ConstructL()

CCoeEnv::ConstructL()

//一系列初始化

……

//似乎加载dll库的地方在这里

LoadLibrariesL();

}

CCoeEnv::ConstructL()

{

//创建iExtra

iExtra=new(ELeave) CCoeEnvExtra;

iExtra->ConstructL();

//创建ActiveScheduler

CreateActiveSchedulerL();

CActiveScheduler::Add(this);

//一系列初始化sessions、screen、gc、font等等

ConnectToFileServerL();

ConnectToWindowServerL();

InitScreenL( aDefaultScreenNumber); // Modified May 04 support for Multiple Screens.

InitRootWindowL(aInitialFocusState, aWindowGroupID);

InitSystemFontsL();

InitSystemGcL();

……

//等待WSERV的事件

iWsSession.EventReady(&iStatus);

SetActive();

//当RunL被调用时，会先调用iAppUi->MonitorWsEvent(event)

//在AppUi中设置过Moniotr的可以在MonitorWsEvent中处理所有的event

//再调用iAppUi->HandleWsEventL(event,window)

//CCoeAppUi::HandleWsEventL会根据TWsEvent分发事件给CCoeControl