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CASE 3 : If you want to close only self. Sign up to join this community. The best answers are voted up and rise to the top.
Home Questions Tags Users Unanswered. Asked 1 month ago. Active 1 month ago. Viewed 60 times. Lorenzo Lorenzo 8 8 bronze badges. Do you want to close all open dialogs in the plugin OR all open dialogs opened in some specific methods like run and run2? Is the question about method-based dialogs or dialog-based dialogs? Active Oldest Votes. CASE 1 : If dialogs are created in the main class defined in main module of the plugin, First, find all attributes of main class. First, find all QDialog s instances of the plugin.
Then, check if it is visible. If it is, hide using setVisible False def runCloseDialogs self : for dlg in self. Hi thank you very much. I was asking about the first case, but your answers are both usefull. I thought run method was defined in a GUI class. I've editted the answer. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.
Podcast Programming tutorials can be a real drag. Featured on Meta. Community and Moderator guidelines for escalating issues via new response…. Feedback on Q2 Community Roadmap. Related 5. Hot Network Questions. Question feed.A dialog window is a top-level window mostly used for short-term tasks and brief communications with the user. QDialogs may be modal or modeless.
QDialogs can provide a return valueand they can have default buttons. Note that QDialog and any other widget that has type Qt. Dialog uses the parent widget slightly differently from other classes in Qt.
A dialog is always a top-level widget, but if it has a parent, its default location is centered on top of the parent's top-level widget if it is not top-level itself.
It will also share the parent's taskbar entry. Use the overload of the QWidget. This function allows you to explicitly set the window flags of the reparented widget; using the overloaded function will clear the window flags specifying the window-system properties for the widget in particular it will reset the Qt.
Dialog flag. A modal dialog is a dialog that blocks input to other visible windows in the same application. Dialogs that are used to request a file name from the user or that are used to set application preferences are usually modal.
Dialogs can be application modal the default or window modal. When an application modal dialog is opened, the user must finish interacting with the dialog and close it before they can access any other window in the application. Window modal dialogs only block access to the window associated with the dialog, allowing the user to continue to use other windows in an application.
Typically, to get the dialog to close and return the appropriate value, we connect a default button, e. OKto the accept slot and a Cancel button to the reject slot. Alternatively you can call the done slot with Accepted or Rejected. An alternative is to call setModal true or setWindowModalitythen show.
QDialog Class Reference
Calling setModal true is especially useful for progress dialogs, where the user must have the ability to interact with the dialog, e. If you use show and setModal true together to perform a long operation, you must call QApplication.
See QProgressDialog. A modeless dialog is a dialog that operates independently of other windows in the same application. Find and replace dialogs in word-processors are often modeless to allow the user to interact with both the application's main window and with the dialog. Modeless dialogs are displayed using showwhich returns control to the caller immediately.
If you invoke the show function after hiding a dialog, the dialog will be displayed in its original position. This is because the window manager decides the position for windows that have not been explicitly placed by the programmer. To preserve the position of a dialog that has been moved by the user, save its position in your closeEvent handler and then move the dialog to that position, before showing it again.
Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am developing a desktop application using pyside qtI want to access iterate all line edit components of QWidget.
In qt I found two methods findChild and findChildren but there is no proper example found and My code shows error, 'form' object has no attribute 'findChild'. Here 'form' is Qwidget form consist components lineEdit, comboboxes, Qpushbuttons etc.
Instead, you have to pass a type or tuple of types as the first argument, and an optional string as the second argument for matching the objectName. Note that findChild and findChildren are methods of QObject - so if your form does not have them, it cannot be a QWidget because all widgets inherit QObject. Learn more. Ask Question. Asked 8 years, 1 month ago.
Active 6 years ago. Viewed 23k times. Active Oldest Votes. Omitting the name argument causes all object names to be matched. Dmitriy Dmitriy 4, 6 6 gold badges 39 39 silver badges 52 52 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.
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Feedback on Q2 Community Roadmap. Technical site integration observational experiment live on Stack Overflow.QObject is the heart of the Qt Object Model. The central feature in this model is a very powerful mechanism for seamless object communication called signals and slots.
You can connect a signal to a slot with connect and destroy the connection with disconnect. To avoid never ending notification loops you can temporarily block signals with blockSignals. The protected functions connectNotify and disconnectNotify make it possible to track connections. QObjects organize themselves in object trees.
When you create a QObject with another object as parent, the object will automatically add itself to the parent's children list. The parent takes ownership of the object; i. You can look for an object by name and optionally type using findChild or findChildren. Every object has an objectName and its class name can be found via the corresponding metaObject see QMetaObject::className. You can determine whether the object's class inherits another class in the QObject inheritance hierarchy by using the inherits function.
When an object is deleted, it emits a destroyed signal. You can catch this signal to avoid dangling references to QObjects.
QObjects can receive events through event and filter the events of other objects. See installEventFilter and eventFilter for details. A convenience handler, childEventcan be reimplemented to catch child events. Last but not least, QObject provides the basic timer support in Qt; see QTimer for high-level support for timers.C++ Qt 5 - Displaying Windows
You also need to run the Meta Object Compiler on the source file. We strongly recommend the use of this macro in all subclasses of QObject regardless of whether or not they actually use signals, slots and properties, since failure to do so may lead certain functions to exhibit strange behavior. All Qt widgets inherit QObject. The convenience function isWidgetType returns whether an object is actually a widget.
Some QObject functions, e. A QObject instance is said to have a thread affinityor that it lives in a certain thread.
When a QObject receives a queued signal or a posted eventthe slot or event handler will run in the thread that the object lives in. Note: If a QObject has no thread affinity that is, if thread returns zeroor if it lives in a thread that has no running event loop, then it cannot receive queued signals or posted events.
By default, a QObject lives in the thread in which it is created. An object's thread affinity can be queried using thread and changed using moveToThread.
Note: A QObject's member variables do not automatically become its children. The parent-child relationship must be set by either passing a pointer to the child's constructoror by calling setParent.
Without this step, the object's member variables will remain in the old thread when moveToThread is called. QObject has neither a copy constructor nor an assignment operator. This is by design. In fact, all Qt classes derived from QObject direct or indirect use this macro to declare their copy constructor and assignment operator to be private.VolumeSliderPhonon. SeekSliderPhonon. The PySide. QWidget class is the base class of all user interface objects.
The widget is the atom of the user interface: it receives mouse, keyboard and other events from the window system, and paints a representation of itself on the screen.
Every widget is rectangular, and they are sorted in a Z-order. A widget is clipped by its parent and by the widgets in front of it.
A widget that is not embedded in a parent widget is called a window. Usually, windows have a frame and a title bar, although it is also possible to create windows without such decoration using suitable window flags. In Qt, PySide. QMainWindow and the various subclasses of PySide. QDialog are the most common window types. QWidget has many member functions, but some of them have little direct functionality; for example, PySide. QWidget has a font property, but never uses this itself.
There are many subclasses which provide real functionality, such as PySide. QLabelPySide. QPushButtonPySide. QListWidgetand PySide. A widget without a parent widget is always an independent window top-level widget. For these widgets, PySide. Non-window widgets are child widgets, displayed within their parent widgets. Most widgets in Qt are mainly useful as child widgets.
For example, it is possible to display a button as a top-level window, but most people prefer to put their buttons inside other widgets, such as PySide. The diagram above shows a PySide. QGroupBox widget being used to hold various child widgets in a layout provided by PySide.
QLabel child widgets have been outlined to indicate their full sizes. If you want to use a PySide. QWidget to hold child widgets you will usually want to add a layout to the parent PySide.
See Layout Management for more information. When a widget is used as a container to group a number of child widgets, it is known as a composite widget. These can be created by constructing a widget with the required visual properties - a PySide.
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm trying get all the button child widgets of a window.
The buttons were created through QDialogButtonBox. You should use the QDialogButtonBox::button method, to get the button of the corresponding role. Generally speaking, I would say it's a bad idea to find a button from it's text, as this text might change when you app is internationalized.
Learn more. Ask Question. Asked 9 years, 4 months ago. Active 9 years, 4 months ago. Viewed 3k times. Any other way of Identifying which is which? Is it a special case when buttons are created through QDialogButtonBox?
But parent StyleSheets are inherited by auxiliary dialogs! So they looks different depending on where they were launched from.
It's weird. So now I should use auxiliary dialogs without parents because I'm concerned if parent has StyleSheet. So these dialogs always appears in the middle of the screen and I have additional entity in task bar on Windows for them. How can I prevent such a StyleSheet inheritance?
Or "use only for this class" in parent dialogs. May be some attribute of dialog creation. I can find absolutely no workaround! Hi Stylesheets are cascading by nature. Any children will get the stylesheet. So if you set it up on application ALL will have same look.
If you wish to have some dialogs not having the look, make your stylesheet better using the specifier. Thank you for the answer. But I don't undestandt yet how to use this syntax. I have the following text in "styleSheet" field for my dialog object in QtDesigner:.
What you have shown is not valid. So that is the issue? You have a "child" dialog of a dialog and ther you do not want QToolButton styling to take effect? There are, for example, QLabel and QEdit styling - font, padding, color for particular dialog and many labels and edits in it.
And I don't want this styling in auxiliary dialogs. Should I enumerate all them with ' '? I have a lot of different working dialogs with different styles, but I want to have constant Message dialog everywhere.
I even can't have preview. I see one view in QtDesigner form and I see the absolutely different one in my program when this dialog is invoked from some parent window. Also Why cant u just use names for dialog?
So you list the names of the dialogs that should affect? Alternatively, you can also create a common base class for the non styled dialogs. So you could say only direct QDialogs.