Objects hierarchy ?

[Lost User]

Voluntarily removed

[Lost User]

This is what I understand from the above: 1. MainWindow_Bluetooth is a class that contains various properties including m_settings. When instantiated m_settings is set to point to a new SettingsDialog. 2. SD is a pointer to a new SettingsDialog. No idea where it is created or why, since this appears to be a duplicate of m_settings. 3. In the closeEvent of SettingsDialog you create some text and pass it to m_TAB_Connect, presumably to be displayed somewhere. It is not possible to say whether this is called by SD or m_settings since other parts of the code are not present.