Opening a file dialog gives a warning on stdout; Qt 5.1.0
When I open a standard file dialog, e.g. QFileDialog::getSaveFileName(), I get the following message: QFileSystemWatcher::removePaths: list is empty I’m using Qt 5.1.0, MacOS X 10.8.4. It didn’t happen...
View ArticleProblems with self-build Qt
Hey there, I have a project in which I use the LibVLC library. Normally I work on my self-build Qt5 version on Windows 7 (64-bit) and everything worked smoothly until now. I haven’t done anything on...
View Articlehow access main UI with other thread?
how access main UI with other thread? (with example) thanks.
View ArticleCompiling qt5 on BeagleBoneBlack Error 2
Hi, i want to install qt5 on my BeagelBoneBlackBord with ubuntu precise and lxde. The standart installation packages dont work for the bord, so i have to compile the source. At first i tried the...
View ArticleStripping debug symbols from a debug binary
Problem statement: When I encounter a crash in application and get a core file, I should be able to do a back trace and find detailed information. Possible solution: I can use a debug version of the...
View ArticleBuild QT 5 project on Linux
Hello everyone, I have created a Qt project using QT creator on Windows. I want to build this project on LInux. What all steps i need to follow? Steps i did: 1. cmake 2. make But getting some code...
View ArticleHelp with setting up OpenCV in QT on OSX
I’m new to QT and am having trouble setting up OpenCV for use with QT under OSX. Most of the information I’ve found on this pertains to Windows or Linux so I’m struggling. I’ve written an extensive...
View ArticleQWebView doesn't load files in Windows
Hi, I am developing under Linux a program, which uses QWebView And QWebPage. I have some index.html files located in a folder on my PC and the index files are loading images and css files in the same...
View Articledijit textbox onfocus
I try to launch my virtual keyboard at onfocus events in the html5 page. I use dijit.Form.Textbox as input method. My code is similar to other posts on this forum, e.g. QML + Webview + virtual keyboard...
View Article有关Qserialport的疑问
在这个英文网站能输中文真好～ 说正事，本人接触qt不久，现在在做一个项目要用到串口读写。 单片机是德州仪器的MSP430.往电脑输数据。 现已确定单片机没有问题，驱动正常，可以在我的Mac里用串口监视器读到数据。 用样例程序中Qserialportinfo读出串口信息如下 Port: uart-1CFF49ABB1C3252A Location:...
View ArticleQStyledItemDelegate from library
Hi, I am using a Subclass of QStyledItemDelegate named : EuroFormat. It is placed in a Library. When using the EuroFormat i am getting a segmenation fault. What am i doing wrong? can...
View ArticleQTextDocument insert QImage painted whith QPainter via QTextCursor and print...
Hi! I like to print a page which contains a headline, an image and a table at the bottom. For this I like to use QTextDocument instead of painting and layouting everthing myself, but I have problems...
View ArticleQuestion about Qserialport
I have come into contact with qt just for a short time. & I’ m doing a project which needs reading serial ports. I ‘ve got MSP430, transmitting data to my macbook. There is nothing wrong with...
View ArticleAutomatically scroll to edited cell of QTableWidget?
Hi, I am using a QTableWidget in Main Window class. There are more cells than the screen can show, hence scroll bars are created automatically. Now I am changing certain cells text by code. This...
View ArticleWhy Qt has 3 Licenses?
Hi, I am creating my application using Qt for a while & I am nearing its completion. I want to make it open source, but also have commercial interest in it due to the hard work, time, etc put...
View ArticleQt Creator 2.8 rc eith Intel composer c/c++ ex 2013.sp1
Hi, i’m surprise the integration of the Intel C/C++ Compiler Release 2013.sp1 ( compiler version 14.0.0 ) works fine with the Qt Creator 2.8 rc on openSUSE 12.3 64 Bit, i have rebuild the...
View ArticleWhy doesn't Qprocess::start work for me?
I’m doing: QProcess starter; starter.setWorkingDirectory("C:/folder/"); starter.start("C:/1.exe"); And it doesn’t launch the C:/1.exe file, which exists and launches...
View ArticlePlugin didn't work.
There is an example of plugin that exist in qt examples it is called ‘styleplugin’ this simple plugin must change color of button to red but when i run it. it wont change the color of button. (If you...
View Articlednsapi.dll/.lib for Qt5, Win CE, Armv4i
I need to resolve a few remaining link errors in my project build, and dnsapi.dll/.lib seems to be missing. Where should I expect to find it? Background: My project is including Qt 5.0.2 source...
View Article#include doesn't work
By running the example of FindDialog of C++ GUI Programming with Qt4, I found it wouldn’t compile if only include <QtGui>. I have to #include individual widgets. I am using latest Qt...
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