See also QWidget::close(), QWidget::hide(), QObject::destroyed(), QCoreApplication::exec(), QCoreApplication::quit(), and QApplication::lastWindowClosed(). The isAccepted() function returns true if the event's receiver has agreed to close the widget call accept() to agree to close the widget and call ignore() if the receiver of this event does not want the widget to be closed.

If the last top-level window is closed, the QApplication::lastWindowClosed() signal is emitted. QObjects emits the destroyed() signal when they are deleted. This is very useful for independent top-level windows in a multi-window application. If you want the widget to be deleted when it is closed, create it with the Qt::WA_DeleteOnClose flag. The closeEvent() in the Application example shows a close event handler that asks whether to save a document before closing. If you do not want your widget to be hidden, or want some special handing, you should reimplement the event handler and ignore() the event. The default implementation of this event handler accepts the close event. The event handler QWidget::closeEvent() receives close events. (Under X11 it is possible that the window manager will forcibly close the window but at the time of writing we are not aware of any window manager that does this.) If it refuses to accept the close event nothing happens. When a widget accepts the close event, it is hidden (and destroyed if it was created with the Qt::WA_DeleteOnClose flag). They are also sent when you call QWidget::close() to close a widget programmatically.Ĭlose events contain a flag that indicates whether the receiver wants the widget to be closed or not. You can also close a drawing by clicking Window Close window. The QCloseEvent class contains parameters that describe a close event.Ĭlose events are sent to widgets that the user wants to close, usually by choosing 'Close' from the window menu, or by clicking the X title bar button. You can close one drawing, or multiple drawings, at any time before quitting CorelDRAW.

Closing in a window