Tag this only for the issues specific for Qt 5.8 and not for other versions.
Qt 5.8 was released 23rd January 2017. Announcement is here.
New features list can be found here.
Questions tagged [qt5.8]
58 questions
14
votes
2 answers
Can QML caching in Qt 5.8 be disabled for a particular project?
Qt 5.8 was supposed to come with the optional use ahead of time qtquick compiler, instead it arrived with a sort-of-a-jit-compiler, a feature that's enabled by default and caches compiled QML files on disk in order to improve startup performance and…
dtech
- 47,916
- 17
- 112
- 190
12
votes
3 answers
Qt Lite and configuration changes in Qt 5.8
So allegedly, the configuration tool for Qt went through some changes, necessary to be able to make more streamlined Qt builds, a.k.a "Qt Lite". However, there doesn't seem to be any documentation about how to use that feature, or at least I don't…
dtech
- 47,916
- 17
- 112
- 190
7
votes
1 answer
Proper way to update QtCharts from a worker thread?
since this is my first question I wanted to say that StackOverflow has helped my countless times. Thank you.
Now to my problem. I am currently trying trying to implement a simple data acquisition application in Qt 5.8. The application has to…
T.Krastev
- 83
- 4
6
votes
1 answer
get geometry Data of a loaded qmesh (c++)
my Problem: i load a 3D-Model into a QMesh:
Qt3DRender::QMesh *mesh;
mesh->setSource(QUrl(QStringLiteral("qrc:/new/prefix1/ata.obj")));
This works at the moment.
Now I search a function that gives me the geometry data of the Object, …
Vic
- 61
- 2
5
votes
1 answer
Configure error with Qt 5.8 and SQL libraries
While building Qt 5.7, I used to call the following command line:
C:\SDK\Qt\src\configure -commercial -confirm-license
-debug-and-release -force-debug-info -ltcg -static -angle -nomake examples -nomake tests -qt-sql-odbc -qt-sql-sqlite -qt-zlib…
Arnaud
- 3,765
- 3
- 39
- 69
5
votes
1 answer
Qt 5.8 Project ERROR: Unknown module(s) in Qt: platformsupport-private
I tried to compile my project on fresh new OS X and Qt 5.8 and got this error. So I figured out that installing Qt 5.7 instead solves my problem but can't find reasonable explanation - nor documentation nor any answers on SO. Why this might happen…
htzfun
- 1,231
- 10
- 41
4
votes
2 answers
Using QChart in visual studio
I am trying to use the Qt QChart to plot a line graph. I am using visual Studio 2013 with Qt 5.8. I created a simple QApplication. When I paste QLineSeries *series it says QLineSeries is undefined. How can I fix this?
#include…
amanda45
- 535
- 10
- 29
4
votes
1 answer
Qt5.8 QML Why does a read-only Controls2.TextArea have the ibeam cursor?
Qt5.7 this example gives the "pointer" cursor, but Qt5.8, i get the "ibeam" cursor (like i am to insert).
import QtQuick 2.7
import QtQuick.Controls 2
ApplicationWindow
{
width: 1024
height: 800
visible: true
Flickable
{
…
jkj yuio
- 2,543
- 5
- 32
- 49
2
votes
5 answers
Visual studio 2017: QT Add-in
I've installed Visual Studio 2017 and QT 5.8.
Now I installed a QT-Add-in(from here) and I wanted to add the Path of QT 5.8 in Qt Options(in Visual Studio).
But I get an error like : "This QT version uses an unsupported makefile generator (used:…
Burkay
- 91
- 1
- 1
- 11
2
votes
2 answers
Qt list of images
I am looking for an efficient way to view a list of thumbnails of jpegs in Qt 5.8 (possibly several thousands).
My current approach is to use a QListWidget (see below, and this question). This turns out to be way too slow as it takes forever to…
Tom de Geus
- 5,625
- 2
- 33
- 77
2
votes
1 answer
How to compile Qt 5.8 statically with PostgreSQL plugin in VS2015
Can anybody who may have any idea compiling Qt 5.8 Open Source statically with PostgreSQL support on Windows. I tried all the options known to me including the below. I'm using qt 5.8 sources on Windows 10 x64.
configure -opensource -confirm-license…
Moabi
- 21
- 5
2
votes
1 answer
Exact steps to cross compile QT 5.8.0 for ARM 7 with TSLIB
I'm very new to cross compilation and ARM boards. Currently I have basic idea on cross compilation and binary execution on ARM boards. I want to build a QT application to run on an ARM based board, which supports a touch screen. The board is already…
ffox
- 21
- 1
- 2
2
votes
0 answers
Qt5.8 QML Controls2. How to make a top-down `Drawer` within a parent item?
I'm trying to use Controls2 Drawer to make a top-down drawer within a parent item. If I set edge.QtTopEdge, the program hangs. But it works for QtLeftEdge.
What am i doing wrong.
Here's the code,
import QtQuick 2.7
import QtQuick.Controls…
jkj yuio
- 2,543
- 5
- 32
- 49
2
votes
1 answer
QProcess::startDetached() not show console window
I have a GUI program that start cli program by click button. I want to see console window and don't need wait until cli program end. So I use code like this:
QProcess::startDetached("cmd.exe");
After click button I don't see console window. But see…
Andrey
- 23
- 5
2
votes
2 answers
Cannot run Qt example in Qt creator: The program has unexpectedly finished
Recently I tried to upgrade Qt to 5.8.0 on Windows 7 32bit from Qt5.6.2 MSVC 2013, and I saw strange issues.
I downloaded and installed Visual Studio 2015 from this link: https://www.visualstudio.com/downloads/
After I installed Qt 5.8.0 MSVC 2015…
Jake W
- 2,788
- 34
- 39