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Compile Qt (./configure -openvg) with openvg support.Error happeds!

End with error strings —‘yes was specified for OpenVG but cannot be enabled due to functionality tests! ‘ any one who can tell me any necessary library or what mistakes i have make. Thx a lot!

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QScrollArea, QTabWidget, .ui form opened in MainWindow

hi, just to continue my previous thread from here [qt-project.org] after I inserted the .ui form in the TabWidget, I would like to have the form scrollable, meaning if the MainWindog is resized to have...

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error using getOpenFileName on Linux

when using this line to open dialog file this Error happened and crash my progarm QString strFileName = QFileDialog::getOpenFileName(this, tr(“Open File”), QDir::rootPath(),“Library File (.dll;.so)”);...

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Qt 4.8.x support for Mac OS X Mavericks

Hi all, Is there gonna be another maintenance release for the 4.8.x series to support Mac OS X 10.9 Mavericks (like macros updates, etc.)? Because there are still some things I feel there are missing...

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LINUX,How to render words in Widget of an application to make it look more...

Give me some advice how to use method such as Anti-aliasing,Font hinting,etc. When i run my Qt application after build it. the fonts in buttons and text widgets look totally different from previewing...

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Expanding an mdiarea subwindow to center of screen

Hello, I have a general design process problem that I was someone could help me out with. I currently have an mdiarea as my main screen It consists of about 5 subwindows. I want each subwindow to have...

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Qt and Flat Design

Hello, I am starting a new project and I would like to make a flat design for it. Even if it is a desktop application this type of design could be good (from my actual point of view). Does anyone...

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Qt Widgets - vale apena continuar usando e investindo tempo no aprendizado?

Quando comecei a aprender Qt, gostei da facilidade em usar o Qt Designer para criar GUI’s. As Widgets já foram colocadas em um módulo aparte, pois o foco principal para o desenvolvimento de GUI’s será...

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Libcurl inside Qt: can't find external symbol

Hi, I have downloaded qt for my 64bit windows 8 machine and I am trying to use the curl library in my project. Please note that curl is a required and can’t be avoided. So, I have downloaded a zip file...

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openCV and ffmpeg

is it easy to use those two libraries with Qt?

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Problems with Checksum Calculation

I’ve been trying to replicate a 1-wire 8-bit CRC checksum in Qt, but I’ve been having a lot of trouble. You can see an example of what I’m trying to do in Python code here:...

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[Solved] Compiling a simple Qt5 application

Hello folks, I am new to this site, and to Qt as a whole. I have about a year of experience with both (the Ubuntu/Mint/Debian side of) Linux and Java, but none with Qt or C++ (or any truly compiled...

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qDebug "breaks" outputting a char with value 0?

Care to guess what would the output of this code be?     char c = 0;     for (int i = 0; i < 4; ++i) qDebug() << c << i...

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Mac Viewport issue with Teapot example

The teapot example rotates the teapot fine in the middle of the viewport until I resize the window. Then, the origin is top right hand corner of window and teapot rotates around that point and is...

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QFileSystemModel and QTreeView - strange behavior when resetting view.

Hello. I am writing small program for copying files. I use QTreeView and I have inherited from QFileSystemModel, so I was able to add checkboxes to every row in the QTreeView. I also use setNameFilters...

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LNK 2019: unresolved external symbol "__declspec(dllimport) public:...

.pro #------------------------------------------------- # # Project created by QtCreator 2013-06-22T00:33:21 # #-------------------------------------------------   QT    ...

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Unable to build Qt from source on Debian 7, amd64

Hi guys. I have followed this tutorial http://qt-project.org/wiki/Building_Qt_5_from_Git to build Qt from source. The tutorial works well with Debian 7 i386 but on amd64 I obtain this error: {standard...

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[Solved] Using a .ui file in another class?

Hi, I have a MainWindow class in which I have already used a .ui file for creating the Main Window of my application. Now I want to create an About Dialog. I created the same in a .ui file (without...

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Qt - not all widgets refreshed after stylesheet change

Hi, I have style manager, so user can change stylesheet and palette at runtime. But after this operation, not all widgets are “restyled”. New look is applied when widget is recreated. Same code called...

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Get free disk space

Hello, i am looking for a function to get free disk space on a selected volume, but i can’t find none native. So i found this:...

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