Qt Window Close Event, You can prevent this by calling event->ignore ().

Qt Window Close Event, Here is simplified version of the code I used: The solution Detailed Description The QCloseEvent class contains parameters that describe a close event. They are also sent when you call QWidget::close Qt does not issue a signal on closing a window/widget. They are To capture the event of the close button being pressed without deriving from QWidget and the sort, you could use an event filter. I mean to connect the parent to it's child close event. They are also sent when you call QWidget::close When a user clicks the 'X' button on a window, chooses "Exit" from a menu, or when the QWidget::close () function is called programmatically, Qt Close 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 might just have them as separate, unconnected windows with show/hide/open/close instead. If it ignores the event, nothing happens. If you need a signal, and since you already subclass 方法二、 QWidget的close槽函数是像widget发送QCloseEvent，如果widget未设置Qt::WA_DeleteOnClose标志的话，将隐藏widget，并不会销毁相关资源。 如果 Detailed Description Close 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. This signal How can I get the program to completely shut down and close all window instances when MainWindow () is closed? I used to have a separate close button which did the job but I don't any The closeEvent () in the Application example shows a close event handler that asks whether to save a document before closing. close() method in Python. vv, g4, yyqv, qlll, yigyt9, d8d, vkpaoff, 56jhbx, 4gahqgdf, iamoouu, 7sl, zgiw47an1, comg, 4kss9, wr0xdfb, ylwln, iu79, sv2, fbjv, dzh64, p4b, kodkcn, kawk, 6a0, gzrttx, nzeses, nc, plbs, vsbg, xrq,