这是一种在Series 60窗体上显示标签的方法。你可以在电量图标或信号图标旁边显示一个标签，为此需要用程序实现。我使用了从CCoeControl继承的CIndicatorIcon 这个类。你需要象这样创建ConstructL()：
void CIndicatorIcon::ConstructL()
        {
        iMyWindowGroup = RWindowGroup(iCoeEnv->WsSession());
        User::LeaveIfError(iMyWindowGroup.Construct((TUint32)&iMyWindowGroup));

        iMyWindowGroup.SetOrdinalPosition(0, ECoeWinPriorityAlwaysAtFront);
        iMyWindowGroup.EnableReceiptOfFocus(EFalse);

        CreateWindowL(&iMyWindowGroup);

        // 默认设置指示标签静止
        SetIndicatorIconL(EIndicatorIconAppActive);

        ActivateL();
        }
在ConstructL()中，我调用了另一个函数 SetIndicatorIconL()设置标签：
void CIndicatorIcon::SetIndicatorIconL(TIndicatorIcon aIndicatorIconType, TBool aRedraw)
        {
        switch(aIndicatorIconType)
                {
                case EIndicatorIconEmpty:
                        iIndicator = CEikonEnv::Static()->CreateBitmapL(KSysIconFile, EMbmAvkonQgn_prop_empty);
                        iIndicatorMask = CEikonEnv::Static()->CreateBitmapL(KSysIconFile, EMbmAvkonQgn_prop_empty_mask);
                        break;

                case EIndicatorIconAppActive:
                        iIndicator = CEikonEnv::Static()->CreateBitmapL(KSysIconFile, EMbmAvkonQgn_bt_connect_on);
                        iIndicatorMask = CEikonEnv::Static()->CreateBitmapL(KSysIconFile, EMbmAvkonQgn_bt_connect_on_mask);
                        break;

                case EIndicatorIconAppInactive:
                        iIndicator = CEikonEnv::Static()->CreateBitmapL(KSysIconFile, EMbmAvkonQgn_prop_bt_audio);
                        iIndicatorMask = CEikonEnv::Static()->CreateBitmapL(KSysIconFile, EMbmAvkonQgn_prop_bt_audio_mask);
                        break;

                default:
                        break;
                }

        SetRect(TRect(TPoint(KIndicatorPosX, KIndicatorPosY),iIndicator->SizeInPixels()));
       
        // 如果 aRedraw == ETrue 从新绘制画布
       if(aRedraw)
                {
                DrawNow();
                }
        }

你需要跳过CCoeControl的Draw()函数代码如下 :

void CIndicatorIcon::Draw(const TRect& aRect) const
        {
        CWindowGc& gc = SystemGc();

        gc.Clear();
        gc.SetBrushStyle(CGraphicsContext::ENullBrush);
        gc.BitBltMasked(TPoint(aRect.iTl.iX, aRect.iTl.iY),
                iIndicator,
                TRect(TPoint(0, 0), iIndicator->SizeInPixels()),
                iIndicatorMask,
                ETrue);
        }
现在把这些行加入到程序AppUi类的ConstructL()中:

        iIndicatorIcon = CIndicatorIcon::NewL();
        // 下一行将画标签并绘制到屏幕上       
        iIndicatorIcon->SetIndicatorIconL(CIndicatorIcon::EIndicatorIconAppInactive, ETrue);