Qmainwindow close event python. Provide details and share your research! But avoid ….

Qmainwindow close event python connect(myExitHandler) # myExitHandler is a callable Feb 12, 2013 · Actually this code is directly closing the QMainWindow but not the ui which is loaded then just implement the methods in python and the event->slot connection I have a thread running in my GUI, which I want to close properly, when the user clicks the "X". ignore() will prevent the window closing; otherwise, the event will be accepted by default and the window will close. newwindow) self. closeEvent (self, QCloseEvent). AllowTabbedDocks. We can override is close method and add flag to control QWidget. I have QMDIArea with sub windows. Simply speaking, on its own it does almost nothing. close (self) to close widget by not press X button in window. Identical to the animated property. This is the code: class TestWindow( May 15, 2011 · The function returns true if the user wants the application to close; otherwise, it returns false. resizeEvent extracted from open source projects. accept() # let the window close else: event. void closeEvent(QCloseEvent *Event) { // do some stuff QMainWindow::closeEvent(event); } Jul 22, 2015 · To warn before closing a window that inherits from QMainWindow, I reimplemented its closeEvent, which works fine when I emit close() manually. – def closeEvent(self, event): message = QtWidgets. I am making a GUI application using python3. Override closeEvent for your child widget, and in it emit the signal. These are the top rated real world Python examples of PyQt5. For close-events, you must also explicitly ignore the event: class MyApp(QMainWindow, Ui_MainWindow): Apr 3, 2021 · The problem is that "A" is a widget that is not displayed, it is not the window, so override closeEvent does not make sense. ignore() But for this it is necessary to inherit from the class, but in your case it is not possible so there is another solution, install an event filter: Here I leave a small test application to test the different options for a QMainWindow to act as a QDialog. I'm using python and pyside 6: when i use no . Dec 8, 2020 · Hello all. Inside the "closeEvent()" method, it displays a confirmation dialog asking if you're sure you want to close the application. It just tells the event object that it's been accepted so that the event doesn't continue to propagate. If you do not want your widget to be hidden, or want some special handling, you should reimplement the event handler and ignore() the event. py: class Window2(QMainWindow): # Jan 24, 2018 · I'm using python3 and pyqt4 and I want some code to run every time my QMainWindow is resized. To accomplish this, I wrote this code: class Window(QMainWindow): def __init__(self): QMainWindow. def closeEvent(self, event): # 处理窗口关闭事件的代码 closeEvent方法中的参数event是一个QCloseEvent对象，其中包含了与窗口关闭事件相关的信息。我们可以通过对event对象进行操作，来实现对窗口关闭事件的处理。 closeEvent方法的具体应用和实现方式 Jun 18, 2019 · Hi! I want to intercept close event in my program. 4, PyQt5 in windows 7. Please find below the min. 菜单栏、工具栏或快捷键 Nov 23, 2020 · If I open another window but close the main window, I don't get these closing signals: self. I removed delete on close attribute and made a custom signal for close event by overriding closeEvent() method. I want every time the user closes the windows to pop Jan 26, 2013 · Your implementation can call reject() in the close event to prevent closing. The exec() function returns returnCode. I thought . Like this; Python QMainWindow. MainWindow. You can rate examples to help us improve the quality of examples. The problem when I press the X button it closes omitting close event. Dec 22, 2021 · If you add a contextMenuEvent handler (without setting the context-menu policy), you should see that a right-click will deliver both a mouse-press event and a context-menu event. Provide details and share your research! But avoid …. AllowNestedDocks. closeEvent extracted from open source projects. window = Ui_MainWindow() self. accept() 表示接受关闭事件，窗口将会被关闭；调用 event. Code : Jun 7, 2022 · Calling event. You can't redefine it to do something else. QtWidgets. ') Sep 23, 2019 · In this tutorial we are going to learn how PyQt5 QWidget Close event (signal) works by building a very simple PyQt app in Python. If I run the file below with mousepad & python3 embed. One solution is to define a custom signal in your child widget class that is emitted when the window receives a close event. Apr 16, 2013 · I'm developing a Qt application and changed the closing behavior with the closeEvent virtual function this way:. And when a user clicks I have a QDialog object. closeEvent is not a signal, it is a method that is called when the QCloseEvent event is sent. 예제들을 평가하여 예제의 품질 향상에 도움을 줄 수 있습니다. I need to “re tile the QmdiAea after the sub-window is closed. In C++ it would look like this (my Python is rusty so I won't even try writing Python code now): Feb 1, 2019 · Use functools to override your window's widget closeEvent without creating a child class, then accept or cancel the close event using event. . QMainWindow. cancelled). I am writing a simple code to make a prototype demonstrator running on a Raspberry and need to draw a rectangle when the left button of the mouse is pressed. py and dialog_02. The idea is when user selects a root value from Jan 2, 2020 · Since I posted this question I have come to realize that things are different from what I thought. ui. showMessage('Running', 'Running in the background. I want Popup MessageBox when close window, So I Write like below I have the following example code but closeEvent is never working. closeEvent - 37 examples found. I don't know how I can add the menu bar to the main window. The event handler QWidget::closeEvent() receives close events. close() Argument : It takes no argument. ForceTabbedDocks Jul 25, 2017 · A recommendation before starting my answer, do not modify the class that generates Qt Designer, in your case by the name I think you used the template MainWindow, in the following code I added a bit of code that you have removed, what you must do is Create a new class that implements the generated view: Nov 25, 2022 · I trying to make the ui with rounded corners on a QMainWindow with Qt Designer by also adding a custom title bar. QtWidgets import QApplication, QMainWindow, Nov 25, 2021 · I'm using PySide6 now. So, you should always call close(), since it ensures that Qt follows the correct steps: send a QCloseEvent (which could be ignored, if required) and notify the application about that, so that it can actually quit if the window was the last one. show() in the constructor, there appears a second window titled "python" that calls the events accordingly. And the event needs to be reimplemented in the exact same class/object. User clicks a main window's button, information dialog pops up. the point is to make the main loop in the " run " method because " terminate " function is stopping the loop in " run " not the thread its self here is a working example for this, but unfortunately it works on windows only Jan 11, 2013 · I had a similar problem, but I had the need of not changing the structure of the generated python script from the . Output: Flowchart: Python Code Editor: Feb 5, 2018 · For PyQt5: There is 2 options in my solution, first one is for the "x" button, second one is for menu button, decide which better for you. If the user selects No, the event is ignored, and the application remains open. py from ui_mainwindow import May 6, 2022 · Returning True in the event-filter isn't always sufficient to prevent propagation of the event. Nothing is printed to the console. If you click "No," it ignores the close event, and the application stays open. An event object (event) is an object that encapsulates a state change in the event source. (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. I am new to this forum and to Python. In other words by close() method the window get closed without manually closing it. code that I was testing: from PyQt5. Based on Natan's answer exitEvent @pythonlearner. Oct 6, 2021 · There are various reasons: 1. connect(lambda: print(777777777777)) My class: May 25, 2013 · Calling event. connect(lambda : print(6666666)) self. 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. The two widgets are stacked and a tab bar appears for selecting which one is visible. They are also sent when you call QWidget::close() to close a widget programmatically. AnimatedDocks. I cannot figure out what code is needed in”close event” to access QMDIArae to run “tile windows”. The event target is the object that wants to be notified. Feb 22, 2021 · I'm writing a plugin in python for an app that use Qt as framework. QWidget. This property holds whether manipulating dock widgets and tool bars is animated. Good news, you can override and ignore, so that when the user sends the event, you can ignore or put a message or Aug 9, 2021 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. I have access to the QApplication and QMainWindow object only. exit(). Mar 17, 2014 · I'm using pyqt4 in python. So what i want to do is have a function called when the user exits the application but the function closeEvent(self, event:QCloseEvent) is never called. Otherwise the widget/window/dialog won't be closed and the program won't exit. ignore(): Feb 1, 2024 · The closeEvent method is only called for a top-level window when a close request is received, so it is not suitable for your use-case. It is unclear to me how I can figure out which widget has been closed. When I close the QMainWindow window , its not handled by closeEvent method. May 15, 2011 · The event handler closeEvent() receives close events. A main window provides a framework for building an application’s user interface. The event source object represents the task of processing an event to the event target. setCentralWidget (widget) ¶ Parameters. Jul 21, 2016 · I have a QDialog window that has a continue button. How do I do that? Sep 29, 2018 · @koahnig Thanks for the detailed explanation. Feb 12, 2020 · You can try my code, it should intercept the close event: class UI_MainWindow(QMainWindow): def __init__(self): super(UI_MainWindow, self). trayicon. quit() and QApplication. I can't really figure out what I am doing wrong. It's not a complex Qt app and I'm really struggling trying to understand what happens. Create a single widget and define it as central widget. Thanks in advance for your help. I would like something like this self. Dec 18, 2018 · I am loading a QMainWindow from an . It only reacts to the events the Qt application sends: the aforementioned paint events, but also keyboard/mouse events or system requests. # If the 'Handler' allowed the window to close, then pass the request. __init__() print("Initialization succeeded") def closeEvent(self, event): print("closeEvent has been called") userResult = QMessageBox. If you want to implement closeEvent in windows, create a class that uses the window view (Ui_xxx) and inherits from QWidget. Here's the code: Sep 17, 2014 · Usually most PyQt applications have such lines in main: app = QApplication(sys. If the user selects Yes, the event is accepted, and the application closes. Nov 12, 2014 · EDIT: it works on linux too, I tried this on raspberry pi 4 and it works fine. MainWindow() is a QMainWindow and Menubar is a QMenuBar. ) The event handler closeEvent() receives close events. Apparently by default the close button only closes MainWindow() and nothing else. They are also sent when you call QWidget. Check out the video for How to Window Close Button Event in PySide Qt for Python. # override exit event def closeEvent(self, event): cleanUp() # close window event. The user can drop one dock widget “on top” of another. cpp file in which MainWindow is a subclass of QMainWindow, my assumption that the generated mainwindow. destroy() removes the graphical elements, not the class itself. aboutToQuit. close() to close a widget programmatically. method(args) you are calling the functionality of the parent class, in the case the parent classes implement some functionality in that method and in other cases not for what should be the decision of the developer if He does it Sep 17, 2014 · Another way, It's exactly to call bool QWidget. Jul 17, 2022 · and need the close button to have the same functionality. Note: QMainWindow takes ownership of the widget pointer and deletes it at the appropriate time. This is the generated code : from PyQt5 import QtCore, QtGui, QtWid. btn_selection_tool3, SIGNAL("clicked()"), self. If the event loop is not running, this function does nothing. widget – PySide6. resized. If the second argument to load is an instance of one of those classes, it will become the parent of the returned widget. Also - there is no close signal but there is a close event. whenever you have to change the UI in designer you have to rebuild the file, so you either risk to overwrite and loose your modifications, or you have to merge the changes everytime (which means that you will potentially introduce bugs due to typos, wrong copy/paste or forgotten functions); 2. May 21, 2021 · You never added the mdi area to the main layout (and you also tried to set the layout for the QMainWindow, which is forbidden); exec is a python builtin, and has no close attribute; if you want to close the widget, you have to call self. I think Jun 16, 2015 · I have 2 classes : MainWindow() and Menubar(). closeAllWindows() would get the job done, I just don't know how to tie them to the default close button. newOnkeyPressEvent And then create your own keypress function in the Ui_MainWindow class Jan 28, 2012 · If I have a class which inherits QMainWindow, and I want it to only have the buttons; close, minimize and help in the window bar, how should I proceed? If I use this code for the window flags: setWindowFlags(Qt::Window | Qt::WindowContextHelpButtonHint | Qt::WindowMinimizeButtonHint); It results in a window with maximize, minimize and close button. Oct 9, 2017 · I am new on PyQt I am working on a project on which I should implement a feature that make the user able to draw a digit using the mouse (digit recognition system). Solution. Although using Qt Creator to design the UI generates a mainwindow. I think both QApplication. Check out Kite (free AI Coding Assistant) → Link Python Code Snippet May 31, 2019 · In the following examples when you press the button visually you will observe the same behavior: the window will close, but we see the difference, in the first one it is called closeEvent(), and in the second one it is not. animated: bool #. I would like to intercept the event closeEvent of the QMainWindow to show an alert if a background process is running. QMainWindow. Jan 15, 2019 · タイトルの通り、Qt for Pythonを利用して、ウィンドウを表示して、メニューで「終了」を選択すると終了するアプリケーションを作成します。 環境構築. If they exist, I close them all. question(None, "Quit", "Do you want to close the program?", QMessageBox def closeEvent ( self, event ): """ Handles the user requesting the window to close. In the first case, we save the user’s preferences to disk and accept the close event; in the second case, we ignore the close event, meaning that the application will stay up and running as if nothing happened. aboutToQuit signal, and I really don't want to have to remember to set that for one specific widget. Your can call directly with signal Jun 11, 2022 · If I add a self. Sets the given widget to be the main window’s central widget. property PᅟySide6. py files placed in a same folder: dialog_01. Here's an simplified ex QMainWindow. When a dock widget or tool bar is dragged over the main window, the main window adjusts its contents to indicate where the dock widget or tool bar will be docked if it is dropped. It depends, when you call super(). Try Teams for free Explore Teams Sep 20, 2020 · Don't know exactly how to give the parameters of QMouseEvent class. show() sys. I have no issue “re implementing” close event when sub window “X” is clinked. ui file it works fine. QMainWindow::closeEvent(event) is typically not called. closeEvent( self, event ) def closeEvent(self, event): Dec 21, 2024 · Create a custom "QMainWindow" class named "MyMainWindow" that sets up the main application window. Application is very sample. question(self, "Question", "Are you sure you want to quit?") if message == QtWidgets. close as the handler)! If this snippet is representative of your code, then you need to accept the event at the end of the closeEvent override. ignore() depending on whether unsaved changes exist or not. With the QToolBar, I can make Feb 23, 2021 · A basic example, where I'm trying to call the close() method to close the main window, doesn't close the window, I have to close it manually. closeEvent에 대한 실세계 최고 등급의 예제들입니다. In your case Nov 1, 2018 · def closeEvent(self, event): if maybeSave(): writeSettings() event. So a simple approach for this was adding the following in the def setupUI. "Try to use the closeEvent!", I thought, but as it turns out this isn't that eas Dec 28, 2014 · While Ph0t0n isn't necessarily wrong, real-world closeEvent() implementations typically call either event. argv) myclass = MyClass() myclass. Someone can help me with this? thank you very much! My code at the moment: Mar 26, 2020 · In this article, we will see how to use close() method which belongs to the QWidget class, this method is used to close the window in PyQt5 application. accept() else: event. As QDialogs can close themself when pressing the escape key, I'm also ignoring that situation. py Both files are copy of each other. argv) app. Please someone tell me what is wrong with this code: from PyQt4 import QtCore, QtGui class Feb 12, 2012 · def closeEvent(self, event): # do stuff if can_exit: event. closeEvent - 37개의 예제가 발견되었습니다. On my system, the mouse-press event is delivered first, and calling close() afterwards does not stop the following Jan 8, 2016 · Hi everyone. You'd probably need to look at how PySide implements its QUiLoader class. e. Jun 22, 2021 · QWidget::closeEvent() is an event called by the Qt event loop when a widget window is closed. I discovered something strange: 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. Syntax : self. hide() self. QMessageBox. Thanks class MainWindow(QWidget): # or QMainWindow def closeEvent(self, event): # do stuff if can_exit: event. newnwindow = QMainWindow() self. newwindow. window. Should I create new class to implement a QMouseEvent into my QTextEdit? class Test(QMainWindow): def __init__(self): Jun 13, 2022 · So I am creating an application on Qt Creator with python as my backend and I have a problem that i can't seem to pin point. ignore() 제가 QMessageBox에 대한 글을 올린 줄 알았는데 안 올렸네요. Jan 21, 2021 · It works well, but it does not fire an event when the the original X11 window destroys it. connect(self. Going to the problem, in Qt there are 2 ways to listen to events, the first one is overwriting the fooEvent() methods and the second one using an event filter as I show below: PySide6. accept() 或 event. ignore() 来告诉系统是否接受关闭事件。调用 event. When the user clicks on the X button or presses Ctrl+Q, I want the dialog to go to a minimized view or system tray icon, instead of closing. See closeEvent() documentation for yet another useful example. The continue button is the default button because whenever I press the enter key, the continue button is pressed. ignore() self. Both build a simple QMainWindow dialog window with two buttons: 'Ok' and 'Cancel' Dec 21, 2024 · If you click "Yes" in the confirmation dialog, it accepts the close event, and the application closes. 이것들은 오픈소스 프로젝트에서 추출된 Python의 PyQt5. resize) but resized is not a builtin Aug 15, 2013 · Bad news first, it is not possible to remove the close button from the window, based on the Riverbank mailing system. This function creates a QMessageBox with a question asking if the user is sure they want to exit. Does it matter if super is called? In my limited testing I can't find that it makes a difference for this function specifically. I read here Emit a signal from another class to main class that creating a signal class to serve as an May 15, 2011 · If it refuses to accept the close event nothing happens. Override the closeEvent method to handle window close events. In C++ land you would need to do something like this. 1. Actually I do not know how to do this. Asking for help, clarification, or responding to other answers. – Jan 19, 2020 · class Ui_MainWindow(QtGui. So what I want is when the mouse Nov 11, 2019 · To avoid that, you can implement the "closeEvent" and ignore the event, so that the user will not be able to close the window until the button is clicked. close doesn't close the window despite event. Python QMainWindow. So, adding the new QLabel as central widget will remove the previous. Nov 2, 2024 · Next, we define a slot function closeEvent that handles the close event of the main window. Note that If I do not stop mouse propagation in the label mousePressEvent, on clicking the label the pop window is generated but it is immediately closed by the QMainWindow mousePressEvent because (most likely) the event is propagating to QMainWindow. exec_()) What you can do is define a function that does all the above, and then do whatever you want after the call to app. If you need a signal, and since you already subclass QMainWindow, you can re-implement in your S class closeEvent(QCloseEvent* e). Jan 20, 2020 · I want to redefine the closeEvent on a QMdiSubWindow, so that it executes hide(). QtGui. May 12, 2021 · QMainWindow. accept() doesn't actually execute the event. Yes: event. The problem I'm having is that if I close the child QMainWindow using the window close button, the window closes and focus returns to the parent, BUT, if I close it via a menu item (connected to the window's close slot), both windows close and the application terminates. Mar 28, 2019 · It seems to me that it is a bug since according to the docs the application should be closed if there is no top-level window but it seems that it is not verified if the closing of the window is not after the event-loop starts. I searched for any method to detect changing window size. py and press Ctrl+Q, no event fires and I'm left with an empty widget. I need to close the QWidget too, by clicking by the close pushbutton. # along to the standard Qt event handler, which will close the window: if getattr( self, '_closed', False ): QMainWindow. accept() or event. Jul 25, 2017 · I have a mainwindow and from that I call another window, I want the a a slot to get executed when the second window is closed. __init__(self) #A lot of stuff in here #The button is connected to the method called Serial_connection self. Connect your exit-action's triggered signal to the close slot of your MainWindow. When I run win2 directly the close method wo An event source is a change in the state of an object that generates an event. __init__() print('[Ui_MainWindow] __init__') def closeEvent(self, event): print Nov 23, 2021 · I want to close all other windows opened by the main window when the main window is closed. destroyed. At least, that solves my problem. main. You can't remove/disable close button because its handled by the window manager, Qt can't do anything there. If a paintEvent is sent to it, it will "paint" the Oct 27, 2018 · I would like to get values from Qdialog window into Qmainwindow after closing Qdailog or Qwidget window. accept() Edit: This minimal example works for me; 'closing' is printed when the plot window is closed. ui file - it's working fine but window events like resize won't be triggered. py would work the same way seems to be erroneous. accept on closeEvent 1 How does PySide/PyQt QMainWindow close a QDockWidget? The closeEvent method has the classes that inherit from QWidget, in which case the daughter classes Sub1, Ui_subVen1, Ui_subVen2 inherit from object, not from QWidget. However, there are several signals that are emitted while the application is shutting down that you can connect to. The return value of exec also tells you whether the form was closed without committing changes (i. Sep 8, 2014 · The QCloseEvent class contains parameters that describe a close event. Identical to the dockNestingEnabled property. Images for Visual assistance : Running the Application Prints the Constructor part but not the Closing and hiding Events This is with the Show method on the class which causes two windows to appear There are two . Jan 21, 2015 · I have a main window which pops a second window with some user options, the user can either click one of the options or close this new windows. ignore() So this is a good example for the video that you can check in action. resizeEvent - 10 examples found. s Mar 26, 2019 · I want a QMainWindow which the user can close by: clicking the window close button, clicking an item in a menu, or using a keyboard shortcut. Is there a way to override the closeEvent like (doesn't work) (or a signal) ? 需要注意的是，我们需要调用 event. Do I have to call the close method from the QMainWindow close? The only way I know to solve this is to use the QApplication. Feb 10, 2015 · I have two QMainWindow instances, one of which is parent to the other. QtWidgets Jan 21, 2014 · I have a QMainWindow that launches a QDialog everytime I click on a button and I can't figure out why the python binary crashes when I close the QMainWindow while one or more dialogs are open. This is my solution: #!/usr/bin/python3 # -*- coding: I'm trying to catch a closeEvent for several dockWidgets that get added dynamically to a QMainWindow. ui file. I am using PyQt5 as I thought it would be easy to handle as the library has all I need, but I am sure I am being foolish. fromWinId is destroyed by its creator? Mar 25, 2018 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. class MainWindow(QMainWindow): def closeEvent(self, event): event. Feb 11, 2017 · When i call this QWidget and try to close it by clicking on close pushbutton, it only hides theQWidget, but if I click on QWidget's "X" button, it close correctly. Note that, unlike show() , the exec() call blocks (i. ignore() Another possibility is to use the QApplication 's aboutToQuit signal like this: app = QApplication(sys. close(); Then, the setWidget() method of QMdiSubWindow reparents the widget: I need to show a QWidget, which code is written in another module, when a certain button is pressed. They are also sent when you call close() to close a widget programmatically. (Or in this case is call isFinished). Feb 17, 2023 · I have a pyside2 mainwindow that creates a child window: self. QMainWindow has its own layout to which you can add QToolBar s, QDockWidget s, a QMenuBar, and a QStatusBar. show() Jun 27, 2020 · I have created 2 windows, win1 and win2, using qt designer and have added two buttons: btn_open_win2 to open win2 from win1 and btn_close to close win2. A signal and an event are different things. The close and closeEvents are not called when I click the QMainWindow X button. exit(app. The latter will terminate the program, but the former will Apr 23, 2020 · QMainWindow inherits from QWidget, the base class for all objects that represent a GUI element in Qt. Currently when I close the subwindow with the x on top and then reopen it, qt shows only a blank subwindow. That's why you can see only the last label. Here is the code I “wrote”: import sys from PyQt5. Sep 22, 2017 · And it's hit when I close via window's "X" button, but not hit when I click the Quit button (when I have attached self. Qt has QMainWindow and its related classes for main window management. These are the top rated real world Python examples of PyQt4. How can I detect when the X11 window imported by QWindow. In the main function, we create the PyQt application, instantiate the "MyMainWindow" class, and show the main window. ForceTabbedDocks QMainWindow. there's no benefit in changing those files, since sooner or later you Dec 11, 2014 · I'm unsure how to solve the following problem: I have a PyQT app which opens some child windows whenever you press a button I'm saving the reference to this pop-up window in my application class ( Nov 11, 2019 · A QMainWindow can have only one central widget. The default implementation of this event handler accepts the close event. setupUi(self. Is there any way to do that? new_window = secondWindow() new_window. [emphasis added] So quit() or exit() are nothing like sys. ignore() 表示忽略关闭事件，窗口将保持打开状态。 2. from PyQt5 import QtWidgets import sys class MainWindow( I create a simple UI with Qt Designer and convert it to Python codes. Dec 2, 2014 · You can also override the close event when your QMainWindow is closed. For some reason, it treats QMainWindow and QDialog differently. Serial_connection) def Serial Mar 14, 2014 · You can use a QDialog and show it using exec, which will block the rest of the application until it is closed. it waits for user interaction), which explains why your current example doesn't work as you expected. QWidget): def __init__(self): super(Ui_MainWindow, self). exec_(): After this function has been called, the application leaves the main event loop and returns from the call to exec(). However, clicking the "x" button does not trigger this property PᅟySide6. alert. I have based on this question: PyQt: Wait until widget closes Dec 5, 2021 · I’m using PyQt5 and I need to have my main window detect when a different window closes. That might be just as useful depending on your use case. keyPressEvent = self. Instead you should use an event filter to monitor the window's events. The second example does not work because you're trying to override the event method, which is a method available only for QWidget subclasses, while your Ui_MainWindow is a simple python object subclass, so it will never be called. Emit your custom signal there and call e->accept() to confirm window closing. 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. あらかじめQt for Pythonが対応するバージョンのPythonが導入されていることを前提とします。 Oct 5, 2010 · You have to subclass QMainWindow and deploy your Ui_MainWin class on an instance of this subclass. ctgz qimhof kyzpsr wpiwp zkmta pood vpyoq dvk cyrniz newh solnwq bdhl tmibcy yxkhxm urfdm