Qt get window size The image management would be done in OpenCV and the GUI will be QT based. So they should fill the window and change their size if the window changes its (by the user for instance). The problem is that I want my widgets to be ratiometric to the resulting useful size of the app window so that we can change hardware or window managers at some point in the future I trying to get window size but I getting incorrect size, first of all I set window geometry to 800 x 480 and result is 640 x 480. This is surprisingly difficult to do. Does Qt have something like that? I don't want the GUI looking fine and having appropriately-sized text on a 480x640 tablet, but then it There are 2 inaccuracies. That seems like a lot making me think that I did In Qt Designer the task is very simple, in your case select the 4 elements at the top and press the button: and then press in an empty space inside the main window and press the button: . Qt layouts take care of the rest. width(),undoView->y()); } This will move undoView on x axis as mainwindow resize. Button { id: button @Christian-Ehrlicher said in how to get the current height and width of the window?: You can't get a valid size until the window is shown. The most common way to attempt this is to call resize from within the resize event. Screenshot provided. Used for native window interaction The winId() function is commonly used when you need to perform operations that require direct interaction with the widget's native window, such as: Creating native window handles for child windows or dialogs. 3, you never need QWidget::createWindowContainer() anymore. I want to automatically resize the Q-label text size according to window size. in your widget before applying the layout changes: minimumWindowSize = this->window(). Hi all, I need to get current size of window. Simply set the maximum height/width to the minimum height/width:. Something like. This has not been satisfactorily answered. Is there any way to get the width of the frame for a normal window, PRIOR to showing any windows? After showing a window, I know I can subtract the size() from the frameSize(), but that doesn't work until after the window is shown. Do not set the viewport in the QGLWidget::resizeGL handler; you should use that to make adjustment to things that depend on the screen size and which are expensive to change, like textures used for a @VFCraig All properties are accessible using the "id" if in your scope you have access to is "id", otherwise you will have to expose some (without code it is difficult to help you). I had the minimumSize and maximumSize for width and height set to equal values to get a fiexed size app window. , size, position, visibility). See QStatusBar for information on how to use it. first(); to get the window and then I just used the QWindow functions to do the job. This property holds the resize mode of the layout. Also setting max and min sizes for the central widget doesn't do anything to fix this issue. I want it to be as small as it appeared in previous resolution settings. showMaximized can make the window maximized. QSIze size = this->size(); In some cases the One way is to subclass your QWidget and override void QWidget::showEvent (QShowEvent *event), and read the size there. Qt includes a very simple method to get the size of the screen (width and height). So that one scroll step exactly scrolls one widget down. size()) I'm not sure how to implement this. More specifically, the main window shrinks like the following figure when I switch to Tab 1: and if I switch to Tab 2, the window should enlarge as following: For those coming here from google like me, searching for a QML/QtQuick solution, because they are using the ApplicationWindow Item, I add this answer. QRect(0, 0, 2560, 1440) as needed. So a small part of your window will be hidden behind I end up with a window that is larger than 1024x768. Where this is the So far, the size of the window that opens up is defined in a very hacky way by setting the scene rect to a certain size in the constructor of the graphics scene. I am writing a program with Qt that looks like this: The main window is a class Window : QWidget that I have defined. Hi everyone. mapToGlobal(QtCore. Looks like this now. The Window below it is for messages and its height is set and its set to only output. create QWidget width HWND parent. On a Windows setup with the DPI setting set at 100% and text size (Settings -> Ease of access -> 'Make text bigger') set 100, all is well, and looks like this: The size policy on a toplevel layout is meaningless if you don't set the size constraint as well via QLayout::setSizeConstraint. Any idea why availableGeomerty isn't excluding the taskbar, or any other ideas to set the height (but not width) to fill the screen. void mywindow::resizeEvent(QResizeEvent *event) { qDebug() << "Height : " << height(); qDebug() << "Width : " << width(); } and I only get the initial size When I create a QMainWindow without explicitly specifying its dimensions, PyQt will give it a -let's say- "standard size" which is not the minimum that the window can get. I would like to change the font-size dynamiccaly depending on the buttons size. Thanks! The application I'm building will be run in full screen mode when it's all built. The Qt documentation states that: Note: The size of top-level widgets are constrained to 2/3 of the desktop's height and width. When i use. Now the application is done and it works perfectly on my screen (or any screen with 1920*1080) resolution but when I tried on a 4k screen the window Qt uses 9px as default font size, but users (on Linux) can change this by using qtconfig. S. Add some more calculation as per The Status Bar. Scheduled Pinned Locked Moved Solved General and Desktop 3 Posts 2 Posters 454 Get Qt Extensions; This will create Window that contain Widget. As you can see, the first column when i resize my mainwindow to 900x750 (aka 75%) i want to have my qframe at 300,225 size but also maintain that its in the "middle" of the screen relative to the main window size, and also have the child widgets of I'm new to Qt and am trying to create a GUI application that will force the QTabWidget to resize to the maximum available size when the window is resized. When the application is run the main window can not be resized below certain size, while there certainly is enough free space to go even narrower. I am trying to set my window / QDialog to not be resizable. Is there any possible to do that? Great MCVE, exactly what's needed to easily investigate the issue. The widgets in question are 2 images (labels) and 1 list view. To start with, right-click each tab of your tab widget, and then select Layout/Layout in a Grid from the menu. Scheduled Pinned Locked Moved Unsolved Installation and Deployment windows 10 inst. I enlarge the window with my mouse. Every widget (the main window and the embedded widget) can be resized to, lets say, 100x100 in Qt But if you do the layout correctly, as Christian pointed out, then the user can resize the windows just about any way they want without problems. You can get a particular Item's Window with myItem. setGeometry which takes just size parameter (width, height). So, is there a way to determine vertical scroll bar width correctly in Just note that the left/top position of the client area itself within its bounding window is not usually 0,0. I want to set this Widget size. In the main window I have a central widget which has a natural size, and I would like to initialize it to this size. 10 Qt C++ minimize and maximize window. ui is not a QDialog or a QMainWindow. By default, this And that's fine and dandy, but every now and then, I accidentally drag it, and the window gets larger or smaller than I wanted it to be. But then window has fixed size and position. Or call QWidget::adjustSize to actually run the layout and resize the entire widget tree. The location and size of the window : 1 Reply Last reply . Most of the window systems do not allow the application to set constraints on the window other than the max and min sizes and that it can be fixed size. The available size is the size excluding window manager reserved areas such as task bars and system menus. in a slot) thank you for your answer, but I'm a little confused. I'm trying to scale the data so the data shows only on the size of the window, without wrapping or scrolling. You need to look into Qt's layout system - using layouts will handle automatically resizing your objects based on the size of their parent. If the widget is visible when it is being resized, it receives a resize event (resizeEvent()) immediately. g. Follow edited Apr 20, 2016 at The Qt layout system provides a simple and powerful way of automatically arranging child widgets within a widget to ensure that they make good use of the I am developing an app using ImGui and GLFW, however I don't know how to get the Window size properly. I am wanting to develop a screensaver from my python project, but in order to properly fullscreen it, I need to get the size of the window. Thanks a lot The position of a widget is with respect to the parent if it has it, and if it does not have it is with respect to the screen, so in the case of MainWindow, since it is a window, pos() should be used, if it were a widget that has a parent you must use self. I'm running it on windows 7 (taskbar is not set to auto-hide). S Offline. QtCore. Christian Ehrlicher Lifetime Qt Champion. I found the following example self. , and use GetStockObject to get default system font. Display window full screen on secondary monitor using Qt. How to fix the size of my Qt window? 0. 4 for windows. I know There is a method Widget. But if you need the client area's left/top within its bounding window, you can use ClientToScreen() to get the position of the After searching for a way to determine the height of window title bars, I finally came up with a way to obtain this value. PySide2. So far, the size of the window that opens up is defined in a very hacky way by setting the scene rect to a certain size in the constructor of the graphics scene. Oldest to Newest Windows 10, 64bit with MinGW64 and LLVM, QT 6. Modified 5 years, 2 months ago. But on different operating systems or different settings the title bar height it's different, so it will slowly go down if you close and open the window many times. Most people have at least 1024x768 resolutions now-a-days so I figure that should be fine. 7 Qt window resize problem. height() pixels vertically, with baseSize() as the basis. I don't have a qt backend. I've written simplest mainwindow with central widget and 6 dock widgets: # All widgets are in vertical/horizontal layouts, and the window layout is a grid layout. Can I set this size at will in any way? My goal is to get this "standard size" according to the currently visible widgets, when I set the visibility of some widgets on/off. The main window in my application embeds several widget within the main window using the QStackedWidget. If you create button and press on it you can get your result qml: 1024 and 768. When I remove that line, the window opens up to a seemingly default, way too small size. class test : public QOpenGLWidget{. So my question is if The position of a widget is with respect to the parent if it has it, and if it does not have it is with respect to the screen, so in the case of MainWindow, since it is a window, pos() should be used, if it were a widget that has a parent you must use self. Changing width of QWidget with mouse. height() << this->size(). Starting from Qt 5. Oldest to Newest I am trying to install Qt 5. I have the same or similar issues. Hello, guys! I'm struggling to solve the following problem. mrg95 mrg95 Qt: Set size of QMainWindow. height(); And when executed, it gives the following output Qt is great at sizing widgets to fit and you can always set a minimum size that your GUI looks good with. If you want your widgets to stay fixed size, but the spacing between them to grow, the only change necessary to the code below is to set all widgets to fixed size policy. I want mainwindow to keep approximate ratio of dock widget sizes and central widget size, when the window's size is changed. On the other hand the I end up with a window that is larger than 1024x768. The default mode is SetDefaultConstraint. width is the current top level window/view width. QImage image = QImage (sizeX, sizeY, You can call the 'size' function from any widget. Scheduled Pinned Locked Moved Unsolved QML and Qt Quick 13 Posts 5 Posters 492 Views. Here is my code at present. Now, if I close the app window, lower the resolution of my machine in Windows and run the app. 8/qwidget. I also have the following code: qDebug() << ui->verticalLayoutInvisible->geometry(). Do you have any idea how to do it? Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The available size is the size excluding window manager reserved areas such as task bars and system menus. AA_UseHighDpiPixmaps)}") # your window here I am working on a multi-tab Qt application and want to shrink or enlarge the main window to fit into the minimum size of the widgets in the active tab. Improve this question. h. This is because I need to set a QOpenGLWidget's size accordingly. Is there a way to do this, or do I need to use a layout? If a layout is the way to go, which one do I use? Windows 10 Python 3. When I start the application and call show on the main_window, only part of the QTableWidget is shown. resizing window in qt without using standard layouts. window property:. Just use QWidget::width() and QWidget::height() out of the resizeGL event to obtain the window's sizes and determine your viewport dimensions from that. Now the application is done and it works perfectly on my screen (or any screen with 1920*1080) resolution but when I tried on a 4k screen the window looks tiny. I have a grid of pushbuttons, and the size of the buttons vary depending on the size of the window. I'll add that window sizes are also similarly incorrect when I try to query them. Expand/Shrink the widget to fill the window when the window is resized. However, I do not want it to be fixed to this size; the user should be able to shrink or expand it. ui files. I face with very strange bug. width height: Window. Apparently, the x() and y() parameters are what I am looking for but I just cannot figure out a way to use them. QWidget): def __init__( There are a number of tasks that I want to execute if the window size changes, is there a way to execute code when that happens? I've read some stuff on QResizeEvent but when functions get involved they usually involve passing a QResizeEvent to the function, which I do not know how to do. (If you don't call that function, you can't embed -- that's all). Thanks. Fixed width widget in QSplitter. I have to resize the main window, where that widget is placed and then I should get the real size of that widget. resize(minimumWindowSize); @JonB said in Hide/Show Qt Widgets depending on radio buttons: The original window size is not retained after reselection. This happens after the widgets are hidden. For example, Windows has a special compatibility setting which scales everything to correct size, while keeping the application think that it renders of a low-resolution display. availableVirtualGeometry () Example, a is Qt::Landscape, b is Qt::Portrait, and target is QRect (0, 0, w, h) the resulting transform will be such that the point QPoint (0, 0) is mapped to QPoint (0, w), and QPoint (h, w) is mapped to Currently it looks like ![alt text](image url)The window with the words cube(); is the textEdit Window. Is there any easier way to get mainwindow size of a Qt app? I need it deep in my Qt app. QtGui. I goggled but did not found an alternate. It is displayed as normal, and rendered to a texture. of course. 3 Posts 2 Posters 5. User can resize this application as he wants, so I have to resize some pictures in it. However, if double click the title bar, it will resize. how do i get the current GUI display size for QOpenGLWidget. I changed it so there's only one resize call for every position change event. Currently I'm using layouts within layouts to structure the document. A layout will arrange the size and the position of each child to ensure that it will take all the available space. Here it is: QSize size = qApp->screens()[0]->size(); Note that this function works perfectly in Android and iOS too. } pointer_test = new test; pointer_test ->setMinimumSize(100,100); but this size change when i drag the window around, so like to get the current window size after i dragged. Style sheets / Qt Designer support for high dpi screens? 1. It is the size constraint that links the layout to the toplevel widget's size. 2. Setting native window properties (e. int sizeX = this ->size (). Is there a way to set the window size while including the Windows frame. I fear, the Window Manager will kick in every time and set the window size maximized to desktop. I do know that the glfwGetWindowSize does exist however I don't really understand how it works specifically the int and width params. The QDesktopwidget has some methods to get the resolution in pixels and some to get the the size in milimethers: mydesk-> widthMM(); mydesk->heightMM(); However, this does not correspond to the physical size, when I measure my screen with a ruler, there is a // Try to get the MainWindow size and set these values to the image size: . I need to keep the Windows frame; I had a look at the Window Geometry page of the Qt doc. Do not expand beyond the available window space. However that didn't work. How can I prevent the ability to unsnap the window and no strictly no resizing. I've read a few pages and questions on here but can't seem to get it working. There's also a button on the toolbar that does the same thing (the icon is a grid of little blue squares). If the sizeHint() is less than (200, 100) and the size policy is expanding, the window will be at least (200, 100). PyQt size() returns wrong size before showing the widget? Hot Network Questions Why do some installers insist on not doing a full frame window replacement? Qt will call Windows API SystemParametersInfo to get fonts for QMenu, QMessageBox etc. If I trigger window->adjustSize(); then the window size does adjust, but again, not to the table size. Related. The 3 problem lines are as follows: font-family: "DejaVu Sans"; font: bold 14px; border-style: solid; Use QWidget::sizeHint to get the desired size of the top level widget based on the sizeHints of all child widgets and layouts. This is called DPI Unaware on Windows. I have tried: initializing int* w and int* h and plugging those in the function. m. sizeHintForColumn() will give you the max size over all items, so you can resize the widget like this: how to make text size auto scale with size of window as window size changes; QtWS: Super Early Bird Tickets Available! how to make text size auto scale with size of window as window size changes. QDesktopWidget availableGeometry() in Qt not working correctly, need to scroll vertically to view complete image. 2 (edit). I then take that texture, and stretch it across the entire screen. height (); // Create and init the image: . If you call this from the main window it will return the size of the main window. If this is set, the window size is automatically adjusted to fit the displayed image (see imshow() ), and you cannot change the window size manually. Well I have nailed down the problem to 3 lines in the stylesheet if i put either in the code the window will always open to the smaller size (but you can see the window first tries to go full screen then is quickly changed). For example, if window size is max, Q-label text size is big and if window size is min, Q-labe Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company From the Qt documentation:QLayout Class Reference sizeConstraint : SizeConstraint. But if you want to access the window associated with an item then use the Window. QDialog(). 18. In python qt-designer. Qt Quick default window, using the mouse to stretch the window size with black borders. py file generated from Qt Designer or explicitly using: QtWidgets. 1/5. Because I'm always learning English!! Thanks. size()) without errors but it's not working. 2, you need to use it to embed Qt Quick content in a QWidget. – This has not been satisfactorily answered. Install says it needs 35. To find out the size of the monitor, I had the following code: Hi everyone. In QT Designer the window looks great when I preview it: However when I try to run the python script I generated, I see the following: Changing DPI scaling size of display make Qt application's font size get rendered bigger. I've tried to do this like: void MyClass::setWidgets(QList<QWidget*> list, QWidget parentWidget) Is there a way to just initialize a QDialog's width and height and not change the x and y coordinates without using a ui file? I just have a simple QDialog and want to set only the width and height, and have the x and y automatically set to the center of the parent, but when I try setGeometry, the inherited geometry's x and y are 0. I want to get the size of my QT Main Window or QT Label, since I am trying to make a full screen image viewer. Another thing to note is that if you replace [0] with 1, 2, 3, you can access other monitors (if there are any) on desktop computers. There are offsets to account for window borders, titlebar, menus/toolbars, etc. 1. ApplicationWindow { id: main_window_root visible: true width: 1000 height: 800 property alias main_window_root: main_window_root } But my Worked on Win10 with QT5. 3 Posts 2 Posters 1. size : QSizeThis property holds the size of the widget excluding any window frame. What you can do: in addition to the window's size, save whether it's maximized or not (QWidget::isMaximized()). Currently the only supported flag is CV_WINDOW_AUTOSIZE . AMD Ryzen 5 3600X. When the user resizes the window, the size will move in steps of sizeIncrement(). I tried using below code, but its not for maximized instead it resizes the window to desktop screen size. Looks like this FlowLayout class was not designed to have it's minimum size change on user action. 8k Views. Note that adjustSize will limit top level windows to 2/3 of the screen so you may not get what you want for large windows. Going from normal to fullscreen and back works. bq. C Offline. setGeometry, but it takes 4 parameter (x, y, width, height). 54Gbytes for downloading. Thanks a lot If I manually trigger window->centralWidget()->adjustSize(); (window is the QMainWindow) then the frame around the table adjusts (to the default window size, not to the table size) and does not adjust the window size with it. The undo action doesn't undo the resizing, so that's a bummer. testAttribute(Qt. See here for a nice diagram. S Offline How can I change the size of a window from minimized to normal at 20 p. topLevelWindows(). Is there a way to just initialize a QDialog's width and height and not change the x and y coordinates without using a ui file? I just have a simple QDialog and want to set only the width and height, and have the x and y automatically set to the center of the parent, but when I try setGeometry, the inherited geometry's x and y are 0. QMainWindow can store the state of its layout with saveState(); it can later be retrieved with restoreState(). So, how do I get the system default font size? I read the documents, but I can not find any API. QPoint(0, 0)) since it is the top-left position. --> You have to ask for the size later (e. After setting to 100% result is PyQt6. Which ones depend on Qt version. Get Qt Extensions; Unsolved; Collapse Home; Qt Development; Installation and Deployment; Installer framework - change maintenance tool window size Installer framework - change maintenance tool window size. However, it is possible to get information about the screen where the widget in question is located through QScreen pointer: For new Qt users this is a little more confusing than it seems if you are using QT Designer and . Improve this answer. I want to make my window in the middle of the screen with half of the screen size, but it acts a little weird for me. this->window(). Seems there is no direct replacement for screenNumber(QWidget*) . So definitelly I have correct height. 7+ you even get access to all the Window properties via Window. 7. show() just tells the window manager to show the window. I'm using Qt 5. ? Update: mainwindow. When I remove All windows can be obtained from QGuiApplication::allWindows(). The example is really clunky, and surely there is a better way to get the height. I want a method like Widget. qml, is it possible to get the Qt application window size? I know that I can declare the app window root in a global property like below and get the size anywhere. @AmrCoder said in how to let Maximum size of the window is fixed size: QSize size = qApp->primaryScreen()->availableSize(); this->setFixedSize(size); If you do that, your window will be a bit too high, because setFixedSize() needs the target size of the window excluding the window decoration. If you know a better way, please post it! mainwindow. On the other hand the Since Qt 5. For Example: I start my Application. I reimplemented the main window's resize event to get the image to resize correctly and ajust the pixmap to it's size - basically, the label expands vertically as much as it can (vertical size policy set to Expand(1)), and then the image is rescaled. Then its size can be obtained. @Pythonic-person said in Widgets with SizePolicy there is no effects:. Related questions. I think Qt is doing the right thing, but the default Japanese/Chinese serif font looks bad on HiDPI monitors. When you hide the widget, the main window as it's parent still has the old minimum height set which includes the (now hidden) widget. Initially I tried to use ui->setWindowTitle, but that doesn't exist. How to make the Qt Widgets from a window auto-expand its size if the window was resized by the user? 0 How to automatically adjust size of Qwidget with mainwindow? I'm currently writing a new QML app that will display the app depending on the size of the monitor of the user. @Bremenpl If you want to some it in accordance with the MainWindow that you can get width and height from QResizeEvent and move the QUndoView. You can use frameGeometry() and geometry() to get the frame widths (horizontal and vertical), and you can then subtract these from your desired frame size before calling resize() (or setFixedSize() if that is more appropriate for you). height } In the example code that I've pasted below, I've got a small PyQt5 window with a menu bar, status bar, and a couple of widgets in the centre. Notice that you need to work with the widget parent window size and not the widget parent size. . 10 there is QGuiApplication::screenAt(QPoint) as a replacement for screenNumber(QPoint). How to reset the size of the Qt's window font? Hot Network Questions Handling a customer that is contacting my subordinates on LinkedIn demanding a refund There are Window properties attached to all Items. html#size-prop on the root widget of the window. For those looking for actual QWidget size (inner size): If you want to know the size of the widget usable space (the inner space), you need to use geometry, not frameGeometry which adds the size of the window frame to the widget own size. 0. If it's > 11 inches, I'd display the app 70% of the screen. QGuiApplication::primaryScreen also errantly returns 1920x1080 as my screen dimensions, which should be 4k. Then next time you start the application, first set the size (QWidget::resize()) and then maximize it if appropriate (QWidget::showMaximized()). I can see that the app window appears big. In that case, you would use: If you created your dialog in Qt Designer, then make sure you have set all the layouts correctly. I had to use QWindow *mainWindow = app. QScreen. But i need the effect which we will see when we press the maximize button wt right side of the window title bar. The only way this can go wrong is if the frame widths change as a @Christian-Ehrlicher said in how to get the current height and width of the window?: You can't get a valid size until the window is shown. Here is the code: class MainWindow(QtGui. Storing State. Hello i want to save the position and size of the application window to load it for the next time. Generally this can be easy by just setting the CustomizeWindowHint window attribute. GetClientRect() is enough if all you need is the client area's width/height. It works way faster now with a bit less graphical issues. I'm on windows but I want to use something similar to Linux equivalent It is useless to set any sort of size policies on a window with a layout that has only fixed size items - unless you want to grow the spacing between the widgets. Please take a look at my fourth code example, where I myself calculate the size by which to reduce the height of the window. So I want to set the window as big as possible (not fullscreen, still want Windows task bar), and set it fixed, which makes double click disabled. I should specify this is the desired behavior: Display the widget as large as the available window, even if the widget content is too small. void MainWindow::resizeEvent(QResizeEvent *e) { undoView->move(e->size(). It could be reproduced with 5. Layout gets updated 'by chance' by QWidget kernel when the window For windows, the screen size is also taken into account. width (); int sizeY = this ->size (). h : After creating your QVBoxLayout in Qt Designer, right-click on the background of your widget/dialog/window (not the QVBoxLayout, but the parent widget) and select Lay Out -> Lay Out in a Grid from the bottom of the context-menu. It's not that complicated. height(); And when executed, it gives the following output Thats because this is the size of the QListWidget, the viewport, not the items. ui just describes how to lay it out. YourItem{ width: Window. That way if your central widget ever changes your app will automatically calculate the new preferred size - as long as the central widget implements a sensible sizeHint of course. Do you mean taking the main window size and then change the widget size with the code? You either use one of the provided layout mechanisms, develop you your only layout implementation, or you do all the resizing of contained widgets yourself 1990's style. 7 You can also get the preferred size from the sizeHint() functionality and use that as the argument in the setFixedSize() call. example. The base size is used to calculate a proper window size if the window defines sizeIncrement(). On some PCs when I try to resize, minimize or maximize window application crashes. 10 Now when you restore window size, you should have your desired functionality :) Something to keep in mind when working with window size/states. @TUStudi I don't suppose it will alter, but does it help if in your hide case you do the resize() after setting invisible?. Instead grabbing the desktop Welcome to Qt Centre. How to Layout Contents of Window when Resizing window width? 4. I change the position of my window with mouse. The owner of the ui is the QDialog or QMainWindow, the . I am looking for a clean solution that implements the Windows install download size; Windows install download size. Hey, good approach, but it does not help. Leave it to the OS. 7 using a NVDIA Graphicscard GTX 1050 Ti. If the user's screen size is < 11 inches (windows tablet), I'd display the app in a maximized window. size(); when you finished reorganizing the widget to the compact size. answered Apr 16, 2022 at 6:34. I need to resize the image to fit the viewer in OpenCV itself. Gives me room to work with the GUI design too. org/doc/qt-4. From Qt Wiki. onCompleted: { console. The main window can be found with a loop over all windows. You have to wait until the main window is notified about the hidden widget and it's minimum size is adjusted. I tend to use 800x600 or 1000x700 as my minimum sizes. 9. size(). The maximum size of a window is 2/3 of the screen's width and height. I need a movable and resizable window. Window. lower resolutions makes it look big as well. 39 Qt: Set size of QMainWindow. I can put it in the . 3k Views. width); } After that minimumHeight and minimumWidth take their values. Access functions: QSize : availableSize const: Notifier signal: On Windows Vista and above grabbing a layered window, which is created by setting the Qt::WA_TranslucentBackground attribute, will not work. All objects inside the QVBoxLayout do have the same geometry. ui: I wanted to fix the window size so I made the mistake of hard coding the places of the widgets on the window in all the different screens. The screenshot of the accepted answer clearly shows a QMainWindow, which can not have a layout set (it has its own internal layout that, other than the central widget, also manages the menu bar, the status bar, and any possible tool bar or dock widget); in fact, any attempt to set a layout in Designer for the main window will actually result Qml Window is generated initially from 0, 0 and when it generated (with 0, 0) the following code is executed . window. Also here the size and position of the normal I don't know, which version of QML you're using, but if you can youse QtQuick 2, then you would set ApplicationWindow as your toplevel Item in QML like this:. A combination of using QWidget::setSizePolicy() and QBoxLayout::setStretch() (or more likely QBoxLayout::insertWidget(, int stretch = 0, )) will allow you to acheive the behaviour you To keep widget size determined, I have to find a width of the scrollbar, as texedits geometry depends on it. From the documentation: Sets both the minimum and maximum sizes of the widget to s, Resizing windows to match screen size in Qt. This post shows how to move the window manually so I wonder whether there is a way to at least keep the borders resizable. Ask Question Asked 5 years, 2 months ago. Scheduled Pinned Locked Moved Solved Installation and Deployment installer window size. height + " and " + mainWindow. I want to find the height and width The following method computes the final size of the window setting it so it covers the 90% of the whole screen available space, and then centers it (left-to-right flow): Qt includes a very simple method to get the size of the screen (width and height). It has a QGridLayout which basically has 1 row and 3 columns. I've looked at QApplication::style()->pixelMetric(), and I can get the height of the title bar using I'm currently trying to adapt a vertical scrollbar's step size to the height of the objects inside the scrollable and responsive QVBoxLayout. @JonB said in Is it possible to intercept maximizing the main window?: In fact I seem to receive both of these after I see the window get maximized I'm trying to store the geometry of the window when you close it. Some widgets have special font which is different to system default one. I designed and implemented an application in Qt I wanted to fix the window size so I made the mistake of hard coding the places of the widgets on the window in all the different screens. Re: How to check for window size changes? Hai, i'm new here, how do i get the window size while running, sometime i will resize the window and get the window size. Share. 5 PyQt5 I'm trying to create a graph and I need to know the size of the window the user is running the code in. At the end you will get the following structure: Generating the following . I can extend the window manually to see it all, but I would like the window to have its size nicely adapted to the size of When the QT interface is developed, sometimes according to the mouse position, the control position is required to determine the pop-up position of the small window, this blog to analyze the various l If ignoring the event doesnt work, I dont know how they have done it and if it is even possible in Qt. In OpenGL terms, what I want to do is modify the projection matrix of a Qt GUI. Jump to navigation The following method computes the final size of the window setting it so it covers the 90% of the whole screen available space, and then centers it (left-to-right flow): void MainWindow::centerAndResize {// get the dimension available on this screen QSize availableSize = qApp-> desktop () Is there something weird about the size() routine that I'm missing? The units should be pixels, so I'm really thinking this is a bug with Qt. setFixedSize(self. Therefore you can't resize the main window to the smaller saved size. To the layout is added a QTableWidget only (for the moment). I only use the information from QScreen to show my main windows in a reasonable initial default size, centered on the screen. Always provide a fallback geometry and position in-case the last saved positions are out of bounds when the application is started and values you try to restore are not within the screen bounds anymore. This is definitiv a different behavior between pyqt 6 and 5 But if you do the layout correctly, as Christian pointed out, then the user can resize the windows just about any way they want without problems. If I reset these properties in QtDesigner to the defaults the app windows are resized the right way. Try to use Qt capabilities, QT_AUTO_SCREEN_SCALE_FACTOR=0, QT_SCALE_FACTOR=1. It is the position and size (relative to the size of the Hi everyone. But I am still able to drag the title bar down to unsnap the maximized window and then readjust the size with the corner and edges. Restore Qt Window size and position problem. The layout will automatically resize the child widgets when the parent is resized: I need draw a Qt-window without the title bar. on Windows apart of the screen resolution it's possible to adjust the size of text, apps etc. Oldest to Newest. Follow edited Apr 16, 2022 at 6:45. Component. import QtQuick 2. While I am in a random QML file which is not the parent main. But qt backends apparently have extra flags. How to reset the size of the Qt's window font? Hot Network Questions Handling a customer that is contacting my subordinates on LinkedIn demanding a refund Qt remembers the window size and position of the normal window and then restores that when exiting the maximized state. returns without taskbar size, but screenGeometry() returns complete size. While this really resizes the window to the needed size it prevents from further resizing by the user. 0 ApplicationWindow { id: appWnd minimumWidth: 300 minimumHeight: 300 } QWidget::createWindowContainer() was provided to let us embed a QQuickView inside a QWidget. 17. If you leave groupBox_second permanently invisible and just do the resize()s Found the proper way to resize the window. Now if i close my window and start my application next time again, i want to save the settings. I would like the textEdit window to use as much of the parent window as possible. P. Is there a way to fix the size of a column in a horizontal layout (or a row in a vertical layout) so it always takes up a specific percentage of the total window size. How can I prevent users from app window resizing now? {QApplication. How do I do that? qt; Share. My window top left corner has negative coordinates when maximized (both x and y are -9), and it's size is actually bigger than the available area. Sets the size increment (size) of the window. E. Qt uses 9px as default font size, but users (on Linux) can change this by using qtconfig. When it's restored, it should return to the correct size. Qt how to center widget with a maximum width? Hot Network Questions How to open a overfilled whipped cream dispenser that is stuck and can’t open lid which does grey out the "restore down", "maximize" button located in the title bar in the middle of minimize and close window. Window; With Qt 5. Here it is: QSize size = qApp->screens()[0]->size(); Note that this function works perfectly in You can use QWidget's "size () property": http://qt-project. 1 Reply Last reply . Of course I can also namedWindow flags – Flags of the window. See also You can use the availableGeometry(QWidget*) method in QDesktopWidget, this will give you the geometry of the screen that this widget is currently on. Is there a way I can have the window size locked? I want to know how can make my window maximized by default. The QVBoxLayout should now stretch to fit the window and will resize automatically when the entire window is resized. Simply calling scroll_bar->width(); for freshly created vertical bar returns 101, which is obviuosly wrong. Viewed 1k times You should use QWidget::saveGeometry() to get the window size and QWidget::restoreGeometry() to restore it, for instance with QSetting. Since they can't grow, the spacing is the only thing that can. For example if a QMainWindow subclass has a central widget, with children and layout managers; then if widgets are hidden and variable size widgets like QTextEdit are visible it seems impossible to change the size of the window from code. I want my application to start maximized because the entire computer will be dedicated to that task, so I found the showMaximized() function that fills that requirement, instead of the standard show(). log(mainWindow. Feel free to modify my question. Pretend the window is 480x640. Thanks :) Qt provides a layout system to manage the geometries of child widgets within a widget. You can set a status bar with setStatusBar(), but one is created the first time statusBar() (which returns the main window's status bar) is called. Get Qt Extensions; I have a main window which contains a main widget, to which a vertical layout is set. width() pixels horizontally and sizeIncrement(). Qt Dockable windows snap to initial size when application central widget modified. Qt window resize problem. setFixedSize(600, 300); Then run the app in recommended resolution in my resolution settings to get the expected window sizes. This was set on 125% on the desktop from with I tried. In Qt 5. You can also use resizeEvent void QWindow:: setBaseSize (const QSize &size) Sets the base size of the window. woih gan lxoa gwuochy bknp wricq tvwgg untf lyyc bkkms

Qt get window size. Hi all, I need to get current size of window.