* it should be activated or hidden. Without KDE, we need to resort to checking the current state
* as Qt knows it, ignoring windows covering it.
* @param performToggle If true, toggle the window's state in addition to checking visibility
* it should be activated or hidden. Without KDE, we need to resort to checking the current state
* as Qt knows it, ignoring windows covering it.
* @param performToggle If true, toggle the window's state in addition to checking visibility