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Recent questions tagged qt
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qt - Beyond Stack Sampling: C++ Profilers
A Hacker's Tale The date is 12/02/10. The days before Christmas are dripping away and I've pretty much ... fail to perform any useful service. See Question&Answers more detail:os...
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qt - Access sqlite from a remote server
I am wondering how i can access an sqlite database that is sitting a remote server.I have read threads discouraging it ... to connect." ); } See Question&Answers more detail:os...
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qt - Enabling JPEG support for QImage in py2exe-compiled Python scripts?
I'm trying to use a JPEG image in a QImage object from a Python script, with PyQt4. The script itself works perfectly ... OS X or Linux. Will I? See Question&Answers more detail:os...
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qt - declare global property in QML for other QML files
I want to declare a global property in a config file and use it in other files. for example declare mainbg in: ... How can I do this work? See Question&Answers more detail:os...
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qt - QCompleter Custom Completion Rules
I'm using Qt4.6 and I have a QComboBox with a QCompleter in it. The usual functionality is to provide ... not really sure where I should be looking... Question&Answers:os...
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qt - QMake - how to copy a file to the output
How can I copy a file from my project to the output directory with qmake? I'm compiling on Linux but in the future I'll compile it on Mac and Windows. Question&Answers:os...
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qt - Passing an argument to a slot
I want to override mouseReleaseEvent with a bunch of QActions and QMenus... connect(action1, SIGNAL(triggered()), this, SLOT( ... . Do you know how I can do it? Question&Answers:os...
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qt - Draw Rectangular overlay on QWidget at click
in my project i use a EventFilter for widgets, that are in a QHBoxLayout. If i clicked on an a widget, i ... widget. Is there a way to implement this? greetings Question&Answers:os...
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qt - How to specify different Debug/Release output directories in QMake .pro file
I have a Qt project and I would like to output compilation files outside the source tree. I currently have the following ... can I do that using a .pro file? Question&Answers:os...
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qt - My signal / slot connection does not work
I repeatedly see people having problems with slots not being called. I would like to collect some of the most ... working? How can such problems be avoided? Question&Answers:os...
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qt - QLabel does not display in QWidget
I have the following hierarchy in my Qt Application: QMainWindow > QWidget (centralWidget) > QWidget (subclassed) ... label after the initialization is done ? Question&Answers:os...
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qt - Is it legal to assign to property that already has binding defined in QML
Let's say property 'x' has an immidiate value in QML, and another property 'y' is bound to 'x' Text { id: ... it-legal-to-assign-to-property-that-already-has-binding-defined-in-qml...
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qt - QML Canvas improperly rendered with QT_SCALE_FACTOR set
I have a Qt/QML program that runs on Ubuntu and on a Raspberry Pi 3B+. The program runs fine on both ... /questions/65836687/qml-canvas-improperly-rendered-with-qt-scale-factor-set...
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qt - QWidget::visibleRegion() equivalent for QML items
I would like to know the portion of a QML item that is visible on the screen. For example, ... ://stackoverflow.com/questions/65837981/qwidgetvisibleregion-equivalent-for-qml-items...
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qt - Linuxdeployqt, appimage created successfully, doesn't run on double click
i have created an app with the help of following command on terminal ./linuxdeployqt-7-x86_64.AppImage ... /linuxdeployqt-appimage-created-successfully-doesnt-run-on-double-click...
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qt - How to trigger a .sh file or a bash command on a Qt4 button click?
Right now, all I have is my QML file, with the button. /*PlasmaComponents.*/ToolButton { id: shutdownButton text: i18n(" ... -a-sh-file-or-a-bash-command-on-a-qt4-button-click...
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qt qml scaling a image by touch event , image.y not correct when the second point was pressed
Qt 5.12 quick ,i scaling a image by two fingers touch event, image's Y position not correct when second point ... image-by-touch-event-image-y-not-correct-when-the-second-poin...
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qt - Howto resolve qml module not found (qml designer)
As per https://doc.qt.io/qtcreator/qtquick-placeholder-data.html#creating-dummy-context I want to add a dummy ... questions/65862757/howto-resolve-qml-module-not-found-qml-designer...
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qt - How to prevent typing whitespace in TextEdit QML?
How to prevent typing whitespace in TextEdit? QML TextEdit { width: 240 text: "123" font.pointSize: 20 ... /questions/65867156/how-to-prevent-typing-whitespace-in-textedit-qml...
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qt - how the QtObject element works in QML
I just want to know what this QtObject elements does, its seems that is reactive, because in the tutorial that ... .com/questions/65867624/how-the-qtobject-element-works-in-qml...
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qt - How to link a slot in the code with a QWidget in mainwindow
I am a beginner with signal & slots in QtCreator. I would like to know how to connect a signal declared in mainwindow ... -to-link-a-slot-in-the-code-with-a-qwidget-in-mainwindow...
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qt - How do I add click events to a QQuickItem?
New Qt user here (also not an avid C++ programmer, so excuse me if my terminology isn't spot on). I am ... (_hEnabled == hEnabled) return; _hEnabled = hEnabled; update(); e...
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qt - Get coordinates (screen) of GridLayout items
I have simple QML GridLayout with several QML rectangles layouted in it: import QtQuick 2.15 import QtQuick. ... .com/questions/65879669/get-coordinates-screen-of-gridlayout-items...
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qt - Reorganize a QGridLayout in derived class
I develop with QT 5.12. To organize one of my application view I create a QWidget class " ... stackoverflow.com/questions/65882805/reorganize-a-qgridlayout-in-derived-class...
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qt - How to display .png image using image provider with detail explanation
i want to send the dynamic image to qml and display on Qt gui i read online image provider is way to ... /how-to-display-png-image-using-image-provider-with-detail-explanation...
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qt - Styling QMenu tearoff sub control using a stylesheet
Is it possible to change the colour/line style of a QMenu tearoff subcontrol ? I would like to change ... /questions/65887577/styling-qmenu-tearoff-sub-control-using-a-stylesheet...
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qt - How to add 2D surface to a QML Scatter3D
I want to add a 2D surface of a static image to a 3DScatter graph as shown below. I can achieve this using ... .com/questions/65891996/how-to-add-2d-surface-to-a-qml-scatter3d...
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qt - cv2.destroyAllWindows() is not implemented when installing opencv-python-headless
This question already has answers here: question from:https://stackoverflow.com/questions/65894955/cv2-destroyallwindows-is-not-implemented-when-installing-opencv-python-headles...
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