QQmlApplicationEngine is a class from the Qt Toolkit which provides a convenient way to load an application from a single QML file.
Documentation can be found here (Qt5).
Questions tagged [qqmlapplicationengine]
67 questions
1
vote
1 answer
Qt/QML: How do I "switch to" or "open" another QML file without restarting my app?
I have a little application that loads a QML file from a server and displays some kind of "book shelf" to the user.
The user can pick one of the displayed books and C++ will download a ZIP file in the background, unpacks it. The result is a folder…
BastiBen
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- 11
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- 86
0
votes
1 answer
QML and PySide6 "TypeError: Cannot read property 'x' of null"
I am working on an application front-end written in PySide6 that uses Qt Widgets for most of the GUI, but I am trying to add some QML dialogs generated using data sent from a separate back-end.
When trying to launch a QML file, I encounter the…
grahamhs
- 11
- 4
0
votes
0 answers
Restore minimized frameless window from Taskbar
I'm creating one basic qml application with visibility:"FullScreen", and I have one button to minimize the application but after minimizing if i click on the exe in task bar its coming with framed application with min, max, close. I want it again…
0
votes
1 answer
QML window is not visible when loaded from QQmlApplicationEngine
Problem
The problem is that I have some C++ code that loads a QML file called gui.qml, it compiles with no problem, but when running it doesn't display the QML app window but also doesn't give any errors.
Code
Here is the C++ code that I use to load…
PyDev19
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- 6
0
votes
1 answer
Invalid Property name "hoverbutton". (M16) | Qt quick | //@disable-check M16 solution not working
I am creating a simple image viewer QT Quick application on QT6 using QT Creator 10.0.0.
I have two Qml files namely main.qml and hoverButton.qml . When I am trying to instantiate the hoverbutton inside my main.qml file I get the error - Invalid…
harsh9607
- 3
- 3
0
votes
1 answer
QQmlApplicationEngine failed to load component on Python
This problem is similar to QML module not found when using KDE Kirigami , but in this case, setting the QML_IMPORT_PATH env var before running the pyhton file doesn't solve the problem.
I have this simple…
penguin86
- 109
- 7
0
votes
0 answers
Insert characters with accentuation in inputText
I need to insert characters with accent like É, ã or â when my app works in portuguese but when I try to insert (e.g. " a + ~") it doesn't happen.
The problem is caused because I'm using Qt Virtual Keyboard but I don't know how to avoid it.
Code…
RnFaria
- 1
- 1
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QML Application Window moved to no non-viewable area and is no longer able to be moved to viewable area
I'm building a qml application, and the application window has the following hints set: Qt.CustomizeWindowHint and Qt.Window. When trying to work on scaling the application on a click and drag that switches the state of the window from…
0
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0 answers
Qml SwipView current index changes on changing swipe orientation
I am trying to switch the orientation of the swipe on some specific item/page index of the swipeview in qml. When I change the orientation using this piece of code, index changes for no reason that I know of.
SwipeView {
id: view
…
taimoor1990
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- 1
- 13
0
votes
2 answers
Dynamically loading and unloading 2 qml files from cpp
I have requirement to launch 2 different Qml files "mainwindow.qml" and "basic.qml" ,wheras both are independent of each other.
Initially i need to launch qml window based on flag bSettingMainWindow, based on this i will be launching any one of the…
Gowreesh Cr
- 31
- 5
0
votes
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Why QQmlAppicationEngine crashes on exit if QApplication is not specifically referenced as parent?
I have a simple qml app, following the QmlBook tutorial. The Qml code is as such:
Window {
id: root
visible: true
width: Screen.width / 2
height: Screen.height / 2
title: "Happy Windmill"
onHeightChanged: console.log('new…
sheybass
- 3
- 1
0
votes
1 answer
How to cleanly expose C++ backend objects to QML, for varying setContextProperties?
I am creating a QML Application with a C++ backend. Different types of cameras can connect to my C++ backend. These cameras have different types of sensors and different numbers of batteries, etc. Depending on what type of Camera is connected, the…
HiddenNetwork
- 97
- 1
- 8
0
votes
1 answer
QT Signal Documentation on Dial
I am struggling with this problem and I can find any solution. So I have this code for QML
Dial {
id: volumeDial
property int speedValue: volumeDial.value.toFixed(0)
objectName: "speedDial"
from: 0
value: 42
to: 100
…
Mihai Bogdan
- 77
- 8
0
votes
0 answers
How to set profile to QQmlApplicationEngine?
I want to web profile to QQmlApplicationEngine like this QWebEngine code:
web = QWebEngineView()
pf = QWebEngineProfile("unsurf", web)
page = QWebEnginePage(pf, web)
web.setPage(page)
I found QQuickWebEngineProfile, but couldn't found way to set…
Haruka
- 1
0
votes
1 answer
QQmlApplication not loading in release
I am developping a desktop application in QtQuick/C++, on windows 10. In main() function, I create a QQmlApplicationEngine, set some other classes as context property to it, and finally load my qml file.
Everything went well since recently, when I…
claude joliat
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- 9