qt json

My system for Ubuntu14.04, with Apt-get installed the implementation of OpenGL MESA,QT is the official website to download the run file to install.OK, now two are all there, so try to write OpenGL code under QT.Before trying to paste the code in vim and then compile, the test succeeds is a statement containing one of the following compilation options.1 GCCBut directly paste the code into the QT creator Clic

In simple terms, LUA's dynamic features complement the functionality of C + +. Of course, it depends on how you use it.I often use QT, so I'm ready to combine QT with Lua. Imagine calling the following code in a LUA script:W = qwidget:new () w:show ()And then pop up a qwidget window, what a touching thing it is.OK, let's start configuring the environment below.1. Download Lua 5.1. The current version is 5.2

If you want to know about QT and VS2013 development environment, you can turn this page.Here the main sharing environment has been built successfully, in the construction of projects encountered error solution."1" Qt and VS2013 development environment construction times wrongThe error interface is as follows:Note: In the upper left corner of the dialog box, QT Vi

Introduction: QCA: QT cryptographic architecture is a very good class library for encryption and decryption on the qt platform. However, there are still few documents and blogs about QCA in China, if you are not familiar with QT and Unix development, you may encounter some problems when using this open-source class library (as you know, there are still many probl

creating a user interface using QML language , andthe C + + API provides an extension of the QML application interface using C + + code . QT4.7 began introducing the QML,QML (Qt meta-object language,qt Meta Object language), a declarative programming language used to describe the user interface of an application. QML uses a number of visual components and interactions between these components to describe t

Creation and calling of Qt shared library (Dynamic Link Library) and static Link Library, and qt static Link Library Qt Creator compiler, win7 64-bit System Environment 1. Create a shared library: Create a file or project-> select Library and c ++ Library-> select shared Library-> next (Project name: sharedlib) Generated directory structure: Modify the code in

Solution for configuring OpenCV library in qt of Fedora14 and failing to start terminal simulator 'xtermin' in qt: 1 in Fedora14 (Linux, gedit/usr/share/qt4/mkspecs/default/qmake. the conf file contains the following two sentences: QMAKE_INCDIR =/usr/include/opencvQMAKE_LIBS =-lcvaux In februa 14, qt configures the OpenCV library and

Let's talk about the method of calling the QT Dynamic link library, mainly including:1, explicit link DLL, call DLL global function, using QT Qlibrary method2. Show link DLL, call DLL class object, member function. (A call to a class member function can be implemented through an object)① uses the method of virtual function table, which is also the method used by COM, using QT's qlibrary technology call;② is

[Qt Summary] Final Summary, qt Summary Final 1. content about Qt applications: Refer to the previous article: [Qt Summary] terminal remote client upgrade 2. Upgrading files is a processing method in hex format: for files in hex format, If You Want To directly read the files, you need to: 1. Read data 2. Find the requi

This article original in www.yafeilinux.com reprint please indicate the source.Now let's implement the picture on the window and learn how to pan, zoom, rotate, and twist the picture. Here we use the Qpixmap class to implement the image display.First, the use of qpixmap display pictures.1. Make a copy backup of the previous project folder, and here we rename the project folder to Painter05. (as I've said before, it's a good habit to back up the engineering catalog often.)2. Create a new folder i

Tags: arc base experience creat DDD database technology sharing include cannotFollowing the continuation of the previous article:The previous article said, "finally write a demo of my SQL Project discovery can run successfully, but could not find the database file created reason to find"Note that the corresponding code for the above problem is as follows:#include 　The cause of the problem is:Query.exec ("CREATE TABLE student (ID primariy key, name varchar (20))");This line of code is now correct

[Figure] installing the QT environment and the QT creator development tool in Ubuntu thanks to snail mail for posting it on 09-10-13 and being read for 2612 comments and 0 comments [Lottery Q A activities 2011-4-1 ~ 4-18] Open Source people seize the opportunity always (clock) by you First install qt4 and use QT Creator for development demonstration In termin

Because the QT Creator installation relies on the QT library, it is important to ensure that the QT5.5.1 is already installed. 1. Download the Creator3.6.0 resource file: Qt-creator-opensource-src-3.6.0.tar.gz Can be obtained at the following Web site: Http://download.qt.io/official_releases/qtcreator/3.6/3.6.0/qt-

Looking for a long time on the internet, everyone mentions a QT global Gellicoux (qxtglobalshortcut), which supports cross-platform. In this article, I will only show the settings for the global hotkey under the Windows platform.The method provided here is to complete the API encapsulation of Windows in Myglobalshortcut and use it in main.cpp.Directly on the code:Mywineventfilter class:Class Mywineventfilter:p ublic qabstractnativeeventfilter{PublicMy

Qt shortcut key ing "ESC",/* QT: key_escape 0x01000000 */"tab",/* QT: key_tab 0x01000001 */"Shift + TAB ", /* QT: key_backtab 0x01000002 */"backspace",/* QT: key_backspace 0x01000003 */"return",/* QT :: key_return 0x01000004 */"en

, in addition, the Operation brings great convenience. The XML interface of QT is not convenient. If some classes can be directly used as parameters of some XML interfaces, it is more convenient to use many other XML libraries. (Such as tinyxml and rapidxml) Of course, for simple data, individuals prefer JSON. On the one hand, it is for learning, and on the other hand, it is to reduce type conversion. I u

Watanabe White JadeLinks: http://www.zhihu.com/question/29030777/answer/59378712Source: KnowCopyright belongs to the author, please contact the author for authorization.Yes, very well, you can directly include someone else's source code, or call the library.I'll give you a couple of other libraries on GitHub:QASIOSOCKET:QT ASIO (package) replaces QT inefficient Qtcpserver:dushibaiyu/qasiosocket GitHubQLIB7Z:QT 7z SDK Package, decompression compression

The Qt drawing system allows the same API to be used to draw on screens and other printing devices. The entire drawing system QPainter is based on, QPainterDevice and QPaintEngine three classes.QPainterAn abstraction of a two-dimensional space, a two-dimensional space that QPaintDevice allows QPainter drawing on top of it, that is, QPainter the work space, and QPaintEngine provides a QPainter uniform interface for drawing brushes () on different devic