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Questions tagged [qt5.3]

Version 5.3 of the Qt library, that is a cross-platform application development application and UI framework. Tag this only for the issues with Qt 5.3 not other versions.

Version 5.3 of the Qt library, that is a cross-platform application development application and UI framework.

More information about new features in Qt 5.3 is here

114 questions
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2 answers

QQuickImage convert to QImage

I've been using QZXing to decode QR code, my QML looks like this Image{ width:300 height:300 id:imageToDecode source:"qr.jpg" cache: true } and when i pass it into C++ file, it has to be converted into a QImage type, in the…
user2703750
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Signals for entered/exited events in TabView

I have a TabView, which has 3 Tabs, Say tab1, tab2, tab3. Each Tab has some widgets. I want to have some kind of signalling mechanism, so that when I enter tab3, I want to set the state of some of the widgets (e.g. a TextField) within tab3 and when…
Sandeep
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3
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1 answer

last modified date of file in Qt resource system

Normally you can get last modified date easily with QFileInfo::lastModified(). However this doesn't work when a file inside Qt's resource system is used QFileInfo resourceInfo("://resource.txt"); qDebug() << resourceInfo.lastModified().toString() //…
Hedge
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2 answers

Serious rendering issues with OpenGL 4.1 and Qt 5

I've seen some promising references to being able to run Qt5 on modern OpenGL. I'm using the following code to set my QQuickView to OpenGL 4.1 Core (the latest supported on OSX 10.9 with my MacBook). QSurfaceFormat sf =…
Evan
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3
votes
3 answers

Translations of QMessageBox not work in Qt5.3

I'm a fan of Qt and update it frequently, Qt5.1->5.2->5.3. However, the tranalations of Standard buttons like "Ok" "Cancel" "Save" do not work anymore in Qt5.3. They are not translated, but just plain English. The Code for translations does NOT…
Fay100
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3
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1 answer

QML Image not updating after source change

I am using Qt Quick 2 and would like a QML image to be updated when the source is change via clicked on the image. But can't get that to happen. There have been a few similiar questions but those solutions have not brought any joy in my case. Both…
Willeman
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3
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2 answers

Tagging Qt Widgets

Is it possible to tag Qt Widgets? I am generating QPushButtons programmatically and as far as I know, there is no way to differentiate them. I checked the documentation and couldn't find anything. What would be an alternative? for(int i = 0; i <…
Tim Tuffley
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3
votes
0 answers

Undefined References in GCC Library

I'm trying to build a statically-linked version of my company's main application on Linux. The application uses Qt 5.3, and everything compiles just fine if I use a debug/dynamic-linking build with Qt. However, I get many strange errors from .a…
feralin
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2
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1 answer

How to set image resolution with QCamera in Qt 5.3?

I am working on Qt Qcamera to capture images, on Windows Surface Pro tablet. I have written this small piece of code to check the QCamera functionaliy, but after capturing the image, the image saved has very low resolution i.e. 640*360, even though…
user3807950
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2
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0 answers

qca for qt5 can't generate dll's

I need generate dll's for my project to use Qt Cryptographic Architecture, I try to go step by step as this short tutorial says. So I started with adding cmake to qt. Then downloaded qca from git://anongit.kde.org/qca.git, cause this svn in the post…
MyWay
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2
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1 answer

qt how to add a groupbox that contains some widgets dynamically with a pushbutton?

I have a groupbox that contains some pushbuttons and sliders. I want that when I click on a button, a new groupbox that is the same with the former one should appear under the first one. Whenever I click on the button, same situation should happen…
Enes Altuncu
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2
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1 answer

Qt WIdget inside ToolTip

Is it, maybe by using some dirty hakish stuff, possible to use a QWidget as a tooltip or archive a similar mechanic? I want to have such a thing, because I have a list of some participants for a contest and would like to use a QListView for…
NaCl
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2
votes
1 answer

Close and Minimise button is disabled on Linux using Qt5.3.2

I have created an application using Qt 5.3.2. When the application loads the Close and Minimize buttons appear in case of Mac and Windows, But when i run the same code on Linux these buttons are no longer available. Can anyone point me to why this…
prakashpun
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2
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2 answers

Recording Video using Qt5.4

I am building a cross-platform application to record multimedia files for ongoing processing. This is based on an inherited application and I am not able to re-write using alternative libraries. My current issue is that the QMediaRecorder does not…
Neil Stoker
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2
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1 answer

UIImagePickerController in Qt 5.3

I want to implement an application for iOS. I’ve used Qt 5.3 on Mac. I want to defined user interface in Qt. I want to have a button on *.ui. When clicking on that, iOS photo library will be opened and then user can be able to select a photo. I know…
Hasti Ranjkesh
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