If the main window has been minimized to the taskbar (iconified) calling "Show/Hide", "Send" or "Receive" actions from the tray icon menu has no effect: the main window still minimized.

It seems like a Qt bug similar to that old [one](https://bugreports.qt.io/browse/QTBUG-31117).

Tested platform: Linux Mint 19, Qt 5.9.5 / 5.9.6
void optionsClicked();
    
    void aboutClicked();
    
    void showDebugWindow();
    
    void showDebugWindowActivateConsole();
    
    void showHelpMessageClicked();
#ifndef Q_OS_MAC
    
    void trayIconActivated(QSystemTrayIcon::ActivationReason reason);
#else
    
    void macosDockIconActivated();
#endif
    
    void showNormalIfMinimized() { showNormalIfMinimized(false); }
    void showNormalIfMinimized(bool fToggleHidden);
    
    void toggleHidden();
    
    void detectShutdown();
    
    void showProgress(const QString &title, int nProgress);
    
    void setTrayIconVisible(bool);
    void showModalOverlay();
};
class UnitDisplayStatusBarControl : public QLabel