How to get QWidget as Child-Popup as active Window?

Hi all,

I have a Keyboard that shall be opened, when I tap a QLineEdit on a touch screen.

This works fine, but the problem is that the Keyboard is some kind of not Focussed, when I open it a second and/or a third time. So I have to tap on the Keyboard first and then it handles my inputs.

My Code:

Code:

---

main.cpp:
 
screenLogin::screenLogin(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::screenLogin)
{
    ui->setupUi(this);
    keyboardlogin = new Keyboard(this);  // Keyboard is set to private in .h-file
    keyboardlogin->close();   // have to close it here, because  it opens automatically
 
    QObject::connect(ui->editFieldPassword,SIGNAL(selectionChanged()), keyboardlogin,SLOT(runKeyboard()));

---

Keyboard.cpp:

Code:

---

void Keyboard::runKeyboard()
{
    qDebug() << "KeyboardVisible?" << isVisible() << isActiveWindow();
        if(!ALREADY_OPEN){  
            ALREADY_OPEN = true;
        QLineEdit *line = (QLineEdit *)sender();
        line->deselect();                          
        setLineEdit(line);
        this->keyboardCaller = line->objectName();
        this->keyboard_ui->lineEdit->setText(line->text());
 
        outputText = "";                    
        currentCursorPos = line->text().length();
        outputText = line->text();
        this->keyboard_ui->lblMinMax->setVisible(false);
        this->setWindowModality(Qt::ApplicationModal);
        this->setWindowFlags(Qt::SplashScreen);
        this->show();
//        this->setFocus();
        qDebug() << "KeyboardVisible2?" << isVisible() << QApplication::activeWindow();
    }
}

---

Does anyone know what I am doing wrong?

Thanks.