qt beaglebone

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

One, multi-core compilationEnvironment: WIN10, Qt 5.4.1, compiler mingw32Project: Qt for AndroidQt Creator does not support precompilation when compiling Android projects, the default CPU single-core compilation, the project is slightly larger, resulting in a very slow compilation process, affecting efficiency.However, Qt creator comes with a multi-core compiler

QT Development (35)--qt interprocess communication Qt is a cross-platform application framework, and its interprocess communication mechanism can of course use the inter-process communication mechanism of the platform, such as message mechanism on Windows platform, shared memory, file mapping, pipeline, socket and so on. Among them,

I started to learn QT creator. Today I installed it on both Linux and Windows. in Linux, I can compile and execute my ownProgramIn Windows, a problem occurs. When executing the program, the system prompts "mingwm10.dll cannot be found". The solution is to statically compile the QT library. Steps: 1. Call QT command prompt in the Start Menu, 2. Run configure

QT provides good support for JavaScript, and if you look through the documentation, you know that QT has two different JS package engines: Qscriptengine Qjsengine Qscriptengine appears earlier (since Qt4.3), based on WebKit's JavaScriptCore engine, which provides relatively rich APIs, but has been officially labeled deprecated Qjsengine is the official version of the Qt5.0, based on Google

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

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 5 Introduction qt 5 Overviewin this version of QT 5, QT Quick became the heart of Qt. But QT 5 also continues to provide powerful local C + + capabilities to achieve a better user experience, as well as full support for Opengl/

1. Download QT source code 2. Configure the compiling environment $. /configure-Embedded ARM-QT-GFX-qvfb-QT-KBD-qvfb-QT-mouse-qvfb-QT-libpng-QT-libmng-QT-libjpeg-

Starting from a memory leak?Very simple entry procedure, you should be familiar with it ^_^#include In the context of the delete from Qt, we mentioned that the program has a memory leak (the representation is that the destructor is not called), and there are three workarounds: Assigning a Label object to a stack instead of a heap Set tag bit qt::wa_deleteonclose for label Call Delete yourse

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

After some tangle, I still think swing is too much .. Continue QT However, QT does not seem to be covered either. It takes a long time to configure the environment .. Output Hello QT first this time! However, the box after running is too small. Although you can enlarge it by yourself, you do not know if you can call it during initialization? Come on .. The

Im servers are being developed recently and require high-concurrency connections. Qt uses the select model by default. This round robin mode is very slow. For highly concurrent connections, we need epoll to take advantage of the performance of the Linux server. in addition, it is easy to use, and the entire server code architecture does not need to be modified. You can set the QT distribution event, as long

Download and install the qt sdk. The IDE looks very good. Select the Vim (dark) style and it is suitable for long-term reading. [1. Hello word] // Create the qt gui Program # include [2. Embed HTML to draw color text] # Include [3.advantages and disadvantages of QT creator] After using QT Creator for a short per

Qt static compilation and qt static Compilation Compile Parameters Configure-confirm-license-opensource-developer-build-static-prefix D: \ libraries \ Qt5.3.1s-mp-platform win32-msvc2013-opengl desktop-no-angle-nomake examples-nomake tests-no-icu-no-openssl-qt-libjpeg-qt-libpng-no -plugin-manifests-skip qtwebkit-skip