I would like to show my window along with, on the side of QToolTip, when it is shown on request with QToolTip::showText().
QToolTip class has the hideText method, but it also hides by itself, and there doesn't seem to be a signal to tell the app when tooltip is shown/hidden.
Is there a way to catch a moment when it is displayed and a moment when it is hidden, to know the QToolTip widget object, and to show my window (some graph) along with it?