|qmake:||QT += gui|
|QFocusEvent(QEvent::Type type, Qt::FocusReason reason = Qt::OtherFocusReason)|
Focus events are sent to widgets when the keyboard input focus changes. Focus events occur due to mouse actions, key presses (such as Tab or Backtab), the window system, popup menus, keyboard shortcuts, or other application-specific reasons. The reason for a particular focus event is returned by reason() in the appropriate event handler.
Constructs a focus event object.
Returns the reason for this focus event.
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