Qt shortcutoverride. Each time, I press Ctrl first, followed by F.

Qt shortcutoverride Note: ShortcutOverride events aren't handled in Qt by default. Jul 4, 2017 · Qt shortcut objects work through parts of the Qt system which are not part of the regular API, but are exposed to QPA. 0. May 10, 2016 · Before a shortcut is activated, the focus widget is given a ShortcutOverride event. copy action when widget gets userEvent. This property provides a way to forward key presses, key releases, and keyboard input coming from input methods to other items. 客户端的工作总是绕不开undo\redo和快捷键的；快捷键事件通常是由键盘事件触发的，它的响应通常和当前激活(focus)的窗口有关； 本文内容主要包括： qt快捷键创建的方式和四种快捷键属性的意义； 快捷键冲突解决方… Qt Creator has many useful keyboard shortcuts. May 7, 2020 · Hi all - I'm experimenting with handling key events in an app, and (as usual) I'm having beginner's difficulties. Apr 10, 2013 · Note: ShortcutOverride events aren't handled in Qt by default. At least it would make sense IMHO. Jul 25, 2019 · Set the action's shortcut context to Qt::WidgetWithChildrenShortcut: m_copyNodeAction->setShortcutContext(Qt::WidgetWithChildrenShortcut); Make sure the context menu you create uses your widget as its parent: auto* m_mainContextMenu = new QMenu{tr("Main Context Menu"), m_listview}; There's a few things to consider: Feb 8, 2024 · @VStevenP I did some more research and found a way to make it work. If enabled, the key sequence edit displays a trailing clear button when it contains some text, otherwise the line edit does not show a clear button (the default). Oct 1, 2021 · Hi! I want to replace my QTextEdit's default Ctrl + Z action with one of my own. Shortcuts can be easily bound to QtQuick controls like Button, ToolButtons and MenuItem using the QML Action item. To look up keyboard shortcuts: Oct 31, 2011 · No. See also nextState dispatchEvent. However, the order in which the keys enter QEvent::ShortcutOverride is always F first, then Ctrl+F (determined by whether Ctrl is pressed through modifiers()). otherwise it will trigger the shortcut action. Detailed Description. However, the order in which the keys enter QEvent::ShortcutOverride is always F first, then Ctrl+F (determined by whether Ctrl is pres For QEvent::ShortcutOverride the receiver needs to explicitly accept the event to trigger the override. Or at least somehow catch the moment before Paste is about to happen in QLineEdit and do some preparations (clean the text line). Oct 31, 2012 · The only solution I found was to utilize ShortcutOverride events, but that then bypasses the whole mechanism and practicality of shortcuts anyway This is different from X11 where a shortcut in a menu with smaller than "window" context does not trigger when any other child widget of the menu's window has focus. The delete key press should have different behavior if a particular widget has focus. Don't mess with users' experiences! Qt discussions, questions and answers. The shortcuts works well until they are pressed while the focus is on a widget that handles the same combination (overriding my window shortcut). Accept the shortcut override event 3. the up and down arrow keys), and another item to handle other keys (e. I want to assign three shortcut keys (QKeySequence::Cut), (QKeySequence::Copy) and (QKeySequence::Paste) to my customized functions. Although I would call it suboptimal, as the Cmd-Space shortcut acutually does two things: it switches to the zoom tool in InDesign and it opens spotlight. The solution is to have the QWidget instance that needs to receive the events to call ::grabKeyboard. This should work everywhere except when searching for music in a line edit. Jan 28, 2022 · Hello, I'm trying to figure out how to override a key shortcut. Each time, I press Ctrl first, followed by F. ShortcutOverride. Don't mess with users' experiences! For QEvent::ShortcutOverride the receiver needs to explicitly accept the event to trigger the override. For ShortcutOverride the receiver needs to explicitly accept the event to trigger the override. 1. It's been a while since I've done this myself, but IIRC, the basic procedure is: 1. Int key is the code for the Key that the event loop should listen for. The type parameter must be KeyPress, KeyRelease, or ShortcutOverride. ) A shortcut is “listened for” by Qt’s event loop when the shortcut’s parent widget is receiving events. However, the order in which the keys enter QEvent::ShortcutOverride is always F first, then Ctrl+F (determined by whether Ctrl is pres Note: ShortcutOverride events aren't handled in Qt by default. KeyRelease Event (keyReleaseEvent()): Sent when a key is released after being pressed down. Also, you can assign your own keyboard shortcuts for functions that you can easily perform with a mouse, and that therefore do not appear in menus or have default keyboard shortcuts. kms files. This allows clients (e. widgets) to signal that they will handle the shortcut themselves, by accepting the event. The QEvent::ShortcutOverride is calling event->accept() and returning Mar 20, 2024 · Either subclass and override event() to handle QEvent::ShortcutOverride or install a filter and check for the same. cpp. When a shortcut is about to trigger, ShortcutOverride is sent to the active window. Mar 19, 2012 · A shortcut should be triggered if it has a valid parent widget and this parent widget receives events (id est it is not hidden). Aug 27, 2012 · Background I've made a custom widget with QLineEdit and several QPushButtons to use it with custom item delegate: class LineEditor : public QWidget { public: explicit LineEditor(QWidget *parent Qt Qml Tooling Qt Quick Qt Quick - Layouts Qt Quick - Scalability Right-to-left User Interfaces Qt Quick - Performance Qt Quick - Debugging Qt Quick - Testing Qt Quick - Deploying Qt Quick - Best Practices Qt Quick Controls Qt Labs Platform Building UIs with Qt Widgets Overview Widgets Classes For QEvent::ShortcutOverride the receiver needs to explicitly accept the event to trigger the override. For this I have created an eventFilter() in my underlying widget: QEvent::ShortcutOverride: 51: 子のキー押下。ショートカット キーの処理をオーバーライドします ( QKeyEvent)。ショートカットがトリガーされそうになると、アクティブ ウィンドウに ShortcutOverride が送信されます。これにより、クライアント (ウィジェットなど) は Sep 28, 2013 · I am trying to understand the event filtering mechanism in Qt. StateMachineSignal A signal delivered to a state machine (QStateMachine::SignalEvent). Keyboard shortcuts make application development faster. I'm not 100% sure if your line edit will receive the shortcut override event, but i think so. Qt Design Studio has various keyboard shortcuts that speed up your development process. First, I saved off a pointer to the root QObject of my QML ApplicationEngine, which in my EGLFS app is the one and only Window. Shortcut Override Events (QKeyEvent) shortcut: a key combination that triggers an action override: prevent the shortcut action under some circumstances When the shortcut is about to trigger send shortcut override to the focus item instead. This means for QAction, that it has to be added to at least one visible widget. Either subclass and override event() to handle QEvent::ShortcutOverride or install a filter and check for the same. g. The example given on the Qt Wiki is of a media player Nov 22, 2013 · What you can do is to additionally check for the event type QEvent::ShortcutOverride. so file to dynamically override the QKeySequence::toString() function in Qt to represent shortcuts with graphical symbols similar to the Mac. This means I do not receive the event half the time. The URL referred to by the anchor is passed in link. Qt discussions, questions and answers. Jan 24, 2018 · For a single key stroke, I see two ShortcutOverride event: shortcut override "Couper" "Ctrl+X" TextEdit(0x7f8fae45a5d0) shortcut override "Couper" "Ctrl+X" TextDocWindow(0x7f8fae459c80) Maybe I need to filter in the widgets too ? When a shortcut is about to trigger, ShortcutOverride is sent to the active window. : Feb 8, 2024 · @VStevenP said in sendEvent issue: @VStevenP Unfortunately, there seems to be a limitation to the solution I described above. If the shortcut override is accepted it will be delivered as normal key press to the focus widget. Dec 20, 2011 · Qt Centre is a community site devoted to programming in C++ using the Qt framework. QEvent. This will override the shortcut and pass the event through to the widget to handle as usual. If someone has a better idea, I would appreciate, but for now, I will simply use a QShortcut and manually enter the shortcut with QAction's text. The tables in this topic list the default keyboard shortcuts. Member Function Documentation Qt::KeyboardModifiers QInputEvent:: modifiers const. Over 90 percent of questions asked here gets answered. Here is a list of key events that you can handle in Qt: KeyPress Event (keyPressEvent()): Sent when a key is pressed down. Multiple key release events seems to be generated to signal up-level that the letter is auto-repeating. – Oct 31, 2011 · No. See full list on doc. io Jan 15, 2024 · I am using QEvent::ShortcutOverride to handle two shortcuts, F and Ctrl+F. Sep 30, 2021 · But for some reason, Qt decides to dispatch the shortcut event alternating between each ambiguous action/shortcut. But the shortcut doesn't work. Oct 31, 2011 · Yes, you're right. 1、Qt使用QKeyEvent类来描述与键盘有关的信息，比如按下或释放键的代码，使用枚举类型QEvent::Type描述与键盘有关的事件，比如QEvent::KeyPress表示键盘按下事件，QEvent::KeyRelease表示键盘释放事件等。 Apr 10, 2013 · Note: ShortcutOverride events aren't handled in Qt by default. The implementation I'm using to test ignoring the event is as follow: bool MyEventFilterClass:: Mar 24, 2023 · When the application is launched and the Enter key is pressed, both the QEvent::ShortcutOverride (in C++) and the Keys. The goal of the actions is to copy/paste the contents of the QTextEdit, but with extra-work (the contents is copied as text/plain and application/json MIME types). Feb 25, 2015 · Currently, I am working on an editor program. (In the case of ambiguity, the activatedAmbiguously() signal is emitted. Nov 22, 2013 · That's amazing. Mar 21, 2022 · In my app there is button that when you click on it the main window will be hid then if you type a shortcut the main window will show again. I have a Qt app with several window shortcuts defined in a Qt Designer form action. For example even QtCreator cannot override system-wide shortcuts. . I just checked with InDesign. Aug 30, 2012 · Answering my own question as the Shortcuts are now possible to implement in Qt 5. If key is 0, the event is not a result of a known key; for example, it may be the result of a compose sequence or keyboard macro. This class implements an abstract button. The code I have written (mostly pasted from the Qt documentation) partially works: if I press any one key, the QLineEdit correctly says "Ate key press LETTER". For a description of Model/View Programming, see the Model/View Programming overview. This can be useful when you want one item to handle some keys (e. Feb 17, 2021 · I need to change the behavior of "Paste" (completely override, make it act in a different way) in the standard context menu of the QLineEdit. You can see the keyboard shortcut for a menu command in the menu or the tooltip for a button or in the keyboard preferences. The event is propagated up the parent widget chain until a widget accepts it or an event filter consumes it. If the event is accepted, the key event is passed along to the widget and the shortcut is not activated. , set to Qt::StrongFocus). Apr 19, 2010 · Qt Centre is a community site devoted to programming in C++ using the Qt framework. Member Function Documentation [explicit] QShortcut:: QShortcut (QObject *parent) Constructs a QShortcut object for the parent, which should be a QWindow or a QWidget. QEvent::ShortcutOverride: 51: Key press in child, for overriding shortcut key handling . Oct 31, 2011 · General and Desktop; MacOS override cmd+space shortcut; QtWS: Super Early Bird Tickets Available! Shortcut Override Events (QKeyEvent) shortcut: a key combination that triggers an action override: prevent the shortcut action under some circumstances When the shortcut is about to trigger send shortcut override to the focus item instead. Dec 21, 2007 · I have a temporary solution - i'm processing ShortcutOverride event, by posting userEvent to the same widget, let Qt invoke mainwindows action and then do own i. accepted was set to true during Keys. Search for "QWidget keyPressEvent" or "QKeyEvent class" in Feb 10, 2013 · Look, this is my first project, so there is lots of things that I don't know about, Like QListWidger, which I will read about. Apr 18, 2020 · @chan: Exactly. Sep 1, 2019 · As I understand it, Qt will typically not receive the key event if the underlying window system has intercepted it. However, because mnemonic shortcuts do not fit in with Aqua’s guidelines, Qt will not show the shortcut character Feb 19, 2024 · If the shortcut override is accepted, the event is delivered as a normal key press to the focus widget. If I simply add a shortcut as I would normally do if it didn't already exist, it works for, say, "Ctrl+M" but not "Ctrl+Z". e. To import and export keyboard shortcut mapping schemes: Select Preferences > Environment > Keyboard. I don't know how to describe the behavior I want other than to say I don't want special functionality for the Alt or Tab keys. Aug 20, 2010 · I’ve created a QT class (QObject public inheritance) that uses sockets to grab LIRC keys and generate KeyPressEvents through QApplication::postEvent for all the other QT widgets and alike. Dec 5, 2018 · Hello, I have a main window that has a QTextEdit and 3 QAction (copy, cut and paste), mapped on the default shortcuts (respectively ctrl+c, ctrl+x and ctrl+v). Apr 19, 2013 · Note: ShortcutOverride events aren't handled in Qt by default. Jan 15, 2024 · I am using QEvent::ShortcutOverride to handle two shortcuts, F and Ctrl+F. To achieve this I installed event filter for this text edit and handle Cmd+Return key press event in the event filter. Qt Centre is a community site devoted to programming in C++ using the Qt framework. In either case accept() the event and return true when it's the return key. This question is almost a duplicate of: C++/Qt Global Hotkeys For QEvent::ShortcutOverride the receiver needs to explicitly accept the event to trigger the override. PS: Oh, and you would make your users very angry if you mangaged to do so. For QEvent::ShortcutOverride the receiver needs to explicitly accept the event to trigger the override. Morning folks :) I took @Chris-Kawa's suggestion of QEvent::ShortcutOverride, which I did not know about and seems to be exactly what I want: just don't let a shortcut on Key_Return activate while focus is in my QLineEdit, then leave return to be acted on by the line edit just as however it does it now. The QShortcut class is used to create keyboard shortcuts. 4] clearButtonEnabled: bool This property holds whether the key sequence edit displays a clear button when it is not empty. Show Widget was shown on screen . Install an event filter, 2. Qt プログラミングにおける QTableView::paintEvent() は、QTableView ウィジェットの再描画イベントが発生した際に自動的に呼び出される関数です。 このイベントは、ウィジェットのサイズ変更、スクロール、またはコンテンツの更新などによってトリガーされます。 Jul 13, 2013 · Try this: new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q), this, SLOT(close())); You can create it in the contructor of your form. Mar 20, 2024 · Morning folks :) I took @Chris-Kawa's suggestion of QEvent::ShortcutOverride, which I did not know about and seems to be exactly what I want: just don't let a shortcut on Key_Return activate while focus is in my QLineEdit, then leave return to be acted on by the line edit just as however it does it now. To view all Qt Creator functions and their keyboard shortcuts, select Preferences > Environment > Keyboard. The QShortcut class provides a way of connecting keyboard shortcuts to Qt’s signals and slots mechanism, so that objects can be informed when a shortcut is executed. To that effect, I have subclassed QLineEdit and tried to capture any key presses before the actual QLineEdit does. For some reason overriding the function did not work. I've got a MainWindow widget with a QSplitter which contains two Pane widgets ( Oct 8, 2018 · Qt Centre is a community site devoted to programming in C++ using the Qt framework. Mar 26, 2019 · @davidesalvetti I am guessing from your description, assuming it is true/happens for you at least, is to do with auto-repeat when you hold a key down. Here's my code for the sh Sep 11, 2011 · I'm adding a bunch of QActions to my main window's menus. i just want to click the cancelButton and then th May 21, 2021 · Qt simply does not keep track of that information, so you will have to do it yourself. This aproach seems to work fine, but still it's a bit workaround over qt mechanisms, so i'm trying to find better way without need to implementing it in pluginsManager. The shortcuts that are displayed in red color are associated with several functions. Jan 29, 2019 · 为什么按“Tab”键仅发出QEvent::ShortcutOverride事件？ - 背景 嗨，大家好。我使用QLineEdit和几个QPushButtons创建了一个自定义小部件，以将其用于自定义物品代理： class LineEditor : public QWidget { public: explicit LineEdito Detailed Description. But to make sure you can install an event filter on the QApplication and check which widget receives the shortcut override event initially. Although the focused QML control now receives the KeyEvent that was sent to the main, persistent QML window via sendEvent(), the KeyEvent wrongly propagates up to the parent even when event. You can use different keyboard shortcut mapping schemes that are stored as . Dec 21, 2007 · Currently widgets reacts on shortcutOverride event and global shortcut checks focused widgets and works only if focus is on centrain application dependent widgets. Example: A media player uses space for pause/play. Oct 10, 2022 · Long story: In an application, I have a QTextEdit and I want to implement Cmd+Return key press event to submit the edited text. May 23, 2010 · Welcome to Qt Centre. Property Documentation [since 6. Returns the keyboard modifier flags that existed immediately before the event occurred. With some modifications it can do whatever you need in your project. Warning This function is not part of the public interface. These actions can also be triggered by the keyboard, and I want the shortcut to be visible in the menu, as usual, e. Dec 20, 2011 · Only ShortcutOverride events were sent. Definition at line 354 of file qshortcutmap. I don't want to prevent the user from copy,but from select all, because if the user select contents and press any button in the calculator all of the text in the display will be exchanged with the clicked button text. Calling ignore () on a key event will propagate it to the parent widget. If you are looking for information about Qt related issue — register and post your question. Calling This function was introduced in Qt 6. The shortcut can be set up to contain all the key presses necessary to describe a keyboard shortcut, including the states of modifier keys such as Shift, Ctrl, and Alt. qt. Jul 9, 2021 · Hi, I am trying to divert the mouseDoubleClickEvent() over a QSpinBox to my underlying QWidget so that I can process it. void QTextBrowser::anchorClicked ( const QUrl & link ) [signal] This signal is emitted when the user clicks an anchor. Similarly, the related section of the QKeyEvent docs: For QEvent::ShortcutOverride the receiver needs to explicitly accept the event to trigger the override. I take that Mar 20, 2024 · Morning folks :) I took @Chris-Kawa's suggestion of QEvent::ShortcutOverride, which I did not know about and seems to be exactly what I want: just don't let a shortcut on Key_Return activate while focus is in my QLineEdit, then leave return to be acted on by the line edit just as however it does it now. Apr 25, 2017 · I use the QProgressDialog in my project, but i find, when i pressed the esc key, the QProgressDialog close. You can safely add it to your existing check: bool TabObject::eventFilter(QObject *obj, QEvent *event) The Shortcut Editor example shows how to create a basic, read-write hierarchical model to use with Qt's standard view and QKeySequenceEdit classes. QAbstractButton provides support for both push buttons and checkable (toggle) buttons. Oct 7, 2011 · I'm trying to override the Ctrl+Tab behaviour of QMdiArea by installing an eventFilter on the area. Jan 14, 2015 · I understand that QEvent::ShortcutOverride occurs when there is a shortcut registered in the parent and the child wants to "go against the rule". Thus, event-filtering of one kind or another is inescapable if you want to implement this functionality. On Windows, shortcuts are normally not displayed until the user presses the Alt key, but this is a setting the user can change. This allows to avoid polluting your class with a pointer to access the shortcut. This repo contains a tiny bit (~30 lines) of C++ code which compiles to a . Aug 7, 2012 · I have a widget which can contain one or more QTableView child widgets. Now Qt will deliver a regular key event. the left and right arrow keys). Subclasses of this class handle user actions, and specify how the button is drawn. Shortcut Override Event (shortcutOverride()): What you might find very useful is the function QKeySequence(). Nov 6, 2021 · 键盘事件. On Mac, shortcuts are disabled by default. See also QGuiApplication::keyboardModifiers(). For a single key stroke, I see two ShortcutOverride event: shortcut override "Couper" "Ctrl+X" TextEdit(0x7f8fae45a5d0) shortcut override "Couper" "Ctrl+X Apr 10, 2013 · Note: ShortcutOverride events aren't handled in Qt by default. Cmd-Space is intercepted by the OS and never delivered to the application. onPressed handling. If the shortcut override is accepted, the event is delivered as a normal key press to the focus widget. In addition, if the shortcut context is Qt::WindowShortcut (default) the widget has to be active. If you call this in child windows whose lifetimes are shorter, ::releaseKeyboard will need to be called too. And no, I did not mean Alt + Tab. Call qt_set_sequence_auto_mnemonic() to enable them. The following is a part of a code that I use to capture User Defined Shortcuts. toString(). ----- If your favorite keyboard shortcut is missing, you can add it. Feb 28, 2016 · Thanks for the welcomes :) Note that I'm using pyqt bindings. Jan 13, 2025 · Check focus policy with focusPolicy() and adjust if needed (e. In my case, it's the parent window that exists for the life of the application. e. onPressed handler (in QML) are being run, causing the console to print out: Key_Return - ShortcutOverride qml: Enter key pressed on child This is unexpected. By default, when I select a range in one of QTableViews and hit crtl+c only the leftmost uppermost cell gets copied to the Constructs a key event object. Sep 22, 2010 · Qt Centre is a community site devoted to programming in C++ using the Qt framework. Specifically, QWindowSystemInterface::handleShortcutEvent, which takes as arguments the current focus window and most of the information encapsulated in a QKeyEvent. From Qt offical document: When the user types the key sequence for a given shortcut, the shortcut’s activated() signal is emitted. Oct 10, 2011 · From Qt assistant documentation. Unfortunately, it doesn't seems to work actions() returns me an empty list. Consult Qt Documentation Refer to the official Qt documentation for QWidget::keyPressEvent(), QKeyEvent, and related classes for detailed information on methods, properties, and best practices. It works fine for “regular” keys, but it is not working for keys that emulate the ESC, F1, F2 and other “special” keys. Uses ShortcutOverride event to see if any widgets want to override the event. Otherwise, it triggers the shortcut action, if one exists. the focus item now has the option to override the shortcut (by accepting the shortcut override event). I've read a couple pages on this, and there seems to be a few different ways to do it. ShortcutOverride Key press in child, for overriding shortcut key handling . It seems that it's not possible to setup this short Oct 31, 2011 · General and Desktop; MacOS override cmd+space shortcut; QtWS: Super Early Bird Tickets Available! The Shortcut Editor example shows how to create a basic, read-write hierarchical model to use with Qt's standard view and QKeySequenceEdit classes. To view all Qt Design Studio functions in and their keyboard shortcuts, select Preferences > Environment > Keyboard. Simply adding the event->type == QEvent::ShortcutOverride statement in there fixed the issue and the CTRL+C hits in the child. ShowToParent A child widget has been shown. Calling ignore() on a key event will propagate it to the parent widget. SockAct Socket activated, used to implement QSocketNotifier. If not, uses nextState(QKeyEvent) to check for a grabbed Shortcut, and dispatchEvent() is found an identical. Key press in child, for overriding shortcut key handling ( QKeyEvent). Apr 27, 2012 · Searching here and other placed like qtcentre I've seen this problem has come up but can't seem to get it working. lmuwol lpt jslnzq xhvuquo blir xacm cibb ccwehi lclgk shobd