qt examples

Document directory I. Detailed Description Ii. Top-level attributes and child components Iv. Window flag ID 5. introduce several important member functions I. Detailed Description The qwidget class is the base class of all user interface objects. In general, basically all UI classes of QT are inherited by qwidget, while qwidget inherits from qobject,You can refer to QT source to find some subtle writi

Configuration and development environment of Qt memoirs and Development of qt memoirs It has been more than a year of development with Qt. The most common GUI development in Windows is MFC, WinForm, WPF, and Qt. MFC and Qt are based on C ++, while WinForm and WPF are general

graphic effect, and in Listmodel, example this role holds the name of the corresponding example QML document. When the user clicks on the "Load Examples" button, I get the current Item to the ListView, pull the data through the Model, access the example role, get the actual QML document name, and then use Qt.createcomponent () and Com Ponent.createobject () to load the QML document and build the sample component.Well, this time I'll introduce you to

Qt for iOS, mixed programming of Qt and Objective C, iosobjective Recently, some friends who use Qt asked about Qt for iOS, because I have little experience in this field and cannot write system articles. I am very sorry, I cannot give a satisfactory answer. I suggest you go to Jason's Home. There is also a link in th

In the previous article "Qt on Android: Qt Quick event processing: Mouse, keyboard, and timer", we introduced common processing of mouse, keyboard, and timer, mouse and keyboard are the most commonly used events on computers. In this section, we will introduce a very important gesture on Android smartphones: holding hands. As early as Apple's mobile phone, Apple tried to apply for a patent for the Operation

this place, and if you use qurl::fromlocalfile for processing, you can open the folder normally:QDesktopServices::openUrl(QUrl::fromLocalFile(QApplication::applicationDirPath()+SAVEDIR));In addition, there is a problem with this code-Independent: QT Call VC write dynamic Library, VC need to use C way output function, otherwise MinGW32 compile process will error, namely:Example VC DLL header file:? 12345678910111213 #ifndef cdoublere

In general, we use QT compiled programs to rely on the system Qt Library, that is, the program moved to another system without the installation of Qt Library is not available. will prompt for missing ... Errors such as library files. This is the result of dynamic compilation.However, if we want to compile a program, the program will be sent to others, they can op

In general, we use QT compiled programs to rely on the system Qt Library, that is, the program moved to another system without the installation of Qt Library is not available. will prompt for missing ... Errors such as library files. This is the result of dynamic compilation.However, if we want to compile a program, the program will be sent to others, they can op

On the QT website http://download.qt.io/archive/Under the qt4.8.6:http://download.qt.io/archive/qt/4.8/4.8.6/qt-everywhere-opensource-src-4.8.6.tar.gzand Qt creator 2.5.2:http://download.qt.io/archive/qtcreator/2.5/qt-creator-linux-x86-opensource-2.5.2.bin In the te

embedded linux qt Development (iv)--qt Creator project Management First,QT Creator project Management Qt Creator manages the source code in the form of a project, and a QT project contains different types of files as follows:A, . Pro Project description FileB, . Pro.user Use

Recently, there are several friends using QT to ask Qt for iOS things, because I have very little experience in this area, writing system articles, very sorry, can not give a satisfactory answer, recommend everyone to see Jason's Home, in my blog left sidebar link also has, he provided Qt Some of the most interesting articles for IOS, and are practice-based, and

The Book of QT 4 Translation: 3.1.1 use the QT designer to generate a layout The Book of qt4 Translation Qt programming Art --------------------------------------------------------------------------------- Original Name: The Book of QT 4: The art of building QT applica

Qt DesignerIt provides programmers with visual design capabilities and can be used to develop all or part of forms in an application. To put it simply, cross-compilation is to generate executable code on one platform. The so-called platform actually contains two concepts: Architecture) and Operating System (Operating System ). The same architecture can run different operating systems. Likewise, the same operating system can run on different architectu

Respect the author, support the original, if you need to reprint, please attach the original address: http://blog.csdn.net/libaineu2004/article/details/46234079With QT development under Mac OS X, QT libraries and compilers need to be configured. The compiler can only use clang that Apple has developed on its own.1, respectively download and install Xcode and command line Tools (must be installed), after ins

[Qt] 2.3 use the Qt designer to create a dialog box, 2.3qt After installing Qt OpenSource, you can find these items in the Start Menu. [Designer] is a program used to design the window interface. So now you can use it to design a dialog box. In [Qt Creator], you can also design the interface in [design. Open [Designer

Recently, the GUI interface of the company project uses QT, the study of QT discovery in the last two months is really a problem, there are two main problems in this problem: "1" Chinese display; "2" Chinese garbled; The "1" problem occurs when the situation is: QT interface only the English alphabet, Chinese one is not displayed, and

Copyright Notice Respect Original Works. Reprinted, please maintain the integrity of the article, and in the form of a hyperlink to indicate the original author "tingsking18" and the main site address, so that other friends can ask and correct. Qt source code parsing (1) Qt creates window programs, message loops, and winmain Functions Qt source code analysis (2

A common mistake many C + + beginners make is to allocate a chunk of memory with malloc, new, and forget to release, causing a memory leak. The QT object model provides a parent-child relationship between Qt objects, and when many objects are set up in a certain order, the parent-child relationship is organized into a tree. When you delete a parent object, the QT

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

When using QT designer to design the form interface, we can use the form control in the widget box to easily draw the interface, such as dragging a button and a text editor. Although the controls in QT designer can meet most of our needs, sometimes some special requirements are also generated. For example, in an input box, we need to enter the longitude and latitude, in this case, there are two input method