Questions tagged [qt5.8]

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.

58 questions
1
vote
0 answers

Qt in VS 2015 comm edn

Hi i am getting the following error while building Qt application Test2 in Visual Studio 2015 comm. edn. 1>------ Rebuild All started: Project: Test2, Configuration: Debug Win32 ------ 1> Moc'ing test2.h... 1> The filename, directory name, or…
Dan
  • 31
  • 4
1
vote
1 answer

Build failure in Qt 5.8 project in VS2015 community edition

I got this error while building a Qt 5.8 project in Visual Studio 2015 community edition, and am unable to resolve this. 1>------ Rebuild All started: Project: analogclock, Configuration: Debug Win32 ------ 1> Generate moc_predefs.h 1> Reading Qt…
Dan
  • 31
  • 4
1
vote
0 answers

LNK1181: cannot open input file 'release\main.obj' - when rebuilding QT application

I am a newbie to the QT application. I got some QT based project from my vendor. The sample application is built on QT 5.8.0 msvc2013 32 bit/64 bit, But I don't have msvc 2013 instead I have msvc 2017 installed on my pc. When Rebuilding (after…
Abu Muhammad
  • 421
  • 2
  • 13
1
vote
1 answer

Index Qt5 in Eclipse IDE project using Cmake

Background I'm currently using Eclipse Neon.3 and have installed the "C/C++ CMake Build Support - Experimental" package (I'm not using CMake's Eclipse generator). I have a simple program that uses Qt 5.8 which builds successfully, however, Eclipse…
rabidhamper7
  • 161
  • 5
  • 16
1
vote
1 answer

QT Lite for Android application development

I am going through QT Lite documentation from past few hours, not finding any helpful documentation regarding how to use QT Lite. I want to use QT Lite for Android and iOS application development. Already read following links QT Lite Overview QT…
Swapnil
  • 2,409
  • 4
  • 26
  • 48
1
vote
2 answers

download a file by a direct link using QNetworkAcessManager

I'm using QNetworkAcessManager to download a pdf file from a direct link this the link here but it download nothing and the QByteArray size is 0 I try it on another link of mp3 files and many others and it works fine but I want to know why this link…
user7179690
  • 1,051
  • 3
  • 17
  • 40
1
vote
2 answers

Using pdf.js with Qt5.8

I am trying to make a pdf viewer in Qt5.8 .I know that poppler is a choice for Qt but I want to do this using pdf.js .I dont know how to embed pdf.js with Qt5.8. I have seen the hello world documentation of pdf.js but it didn't helped. Please help…
Anmol Gautam
  • 949
  • 1
  • 12
  • 27
1
vote
1 answer

linking error in utility::conversions::to_string_t in qt creator

I am using cpprest with Qt Creator 4.2.1 Based on Qt 5.8.0 (MSVC 2015, 32 bit). I have modified the .pro file to indicate INCLUDEPATH += C:/cpprest/Release/include i am getting the following error : mainwindow.obj:-1: error: LNK2019: unresolved…
Hummingbird
  • 647
  • 8
  • 27
1
vote
1 answer

How to disable Windows 10 feature when building QtWebEngine 5.8 using VS 2015?

QtWebEngine does not support play mp3 by default, so I need to build it from source, to enable mp3 support. My environment: Windows 7 64 bit SP 1 VS 2015 Community Qt WebEngine 5.8 Building failed due to…
zhm
  • 3,513
  • 3
  • 34
  • 55
1
vote
1 answer

How to read Internet header of and email in outlook

I try to read an email Internet headers that we can view it in email properties in outlook app I ask if there is an option so I can get this I use this code to read the emails in outlook Outlook::Application outlook; if (!outlook.isNull()) { …
user7179690
  • 1,051
  • 3
  • 17
  • 40
1
vote
0 answers

Build error OSX

I have a working project on Qt 5.5 and I had to migrate to Qt 5.8 to use the new QCharts feature. When I tried to compile a working project (Qt 5.5) I get the following error; :-1: error: no such file or directory: '5.8/5.8/clang_64/lib' What does…
Vino
  • 2,111
  • 4
  • 22
  • 42
1
vote
1 answer

Noticeable difference in RAM consumption and startup time between Qt 5.8 and Qt 5.7 QtQuick

Official docs say that new Qt 5.8 release: Quite a few things have happened in Qt QML and Qt Quick. The QML engine has gained support for caching binary representations of QML and JS files on disk, reducing startup time and memory consumption…
Bob
  • 1,433
  • 1
  • 16
  • 36
1
vote
1 answer

How to use Universal.System or Material.System in latest Qt 5.8?

I'm playing around with Qt 5.8 RC and the new attribute System introduced in both Universal and Material themes. However when designing a customizable app, one can choose Universal or Material in combination with Dark, Light or System. How can I…
MBach
  • 1,647
  • 16
  • 30
1
vote
1 answer

How can i set the User Agent for child windows with QTWebEngine?

I created my own Webbrowser with QtWebEngine. Now I would like to set the User Agent with this->page()->profile()->setHttpUserAgent(USER_AGENT);. This works well for the main view. If i create a new myWebEngineView inside the methode createWindow…
Chris J.
  • 47
  • 1
  • 4
1
vote
0 answers

Qt Bluetooth LE - instant disconnect while writing descriptor

I'm trying to use Qt Bluetooth on Qt 5.8 and WinRT. I understand it's something that MUST go wrong one way or another but I'd like to avoid mixing Qt and native Windows APIs. I'm pretty sure I'm missing something super obvious right now. const…
pisarz1958
  • 21
  • 1