How to return a QFile ?

[oldFox64]

Sry for the dumb question, but I'm not very experienced with C++ and I don't manage find the appropriate return type of the following function:

?? MyClass::selectFile(){
    const QString fileName = QFileDialog::getOpenFileName(this,
        tr("Select file"), qgetenv("HOMEPATH")+"\\Desktop", tr("File(*.hex)"));
 
    if(fileName==NULL)
        return NULL;
 
    QFile file(fileName);
 
    return ??;
 
}

?? MyClass::selectFile(){
    const QString fileName = QFileDialog::getOpenFileName(this,
        tr("Select file"), qgetenv("HOMEPATH")+"\\Desktop", tr("File(*.hex)"));

    if(fileName==NULL)
        return NULL;

    QFile file(fileName);

    return ??;

}

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