The QT library does not seem to have a complete cross-platform solution, and you may need to judge by your own platform.Windows can use OpenProcess to obtain relevant information using the methods mentioned above. Termination is simple:ShellExecute (0, "open", "TASKKILL", (Processname,null, sw_hide);Other platforms need to find a way to locate the PID of the process (such as invoking the system's PS command
How does the Qt application process Chinese parameters during drag-and-drop, and qt drag-and-drop Chinese parameters?
You have developed an application using Qt. When you drag and drop a file to your exe and start your application, the main () function may receive Chinese parameters. How can this problem be solved cor
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In this way, the debug directory and the release directory under the C:\QT\4.8.6\src\plugins\sqldrivers\mysql directory will be generated separately.Qsqlmysqld4.dll Qsqlmysqld4.libQsqlmysql4.dll Qsqlmysql4.lib
Copy the four files mentioned above toD:\Qt\4.8.4\plugins\sqldrivers
Finally putC:\mysql\lib\libmysql.dllC:\mysql\lib\libmysql.libThe C:\Windows\system32\ directory.4, if you want t
Qt-qml mobile development-Overview of app development and deployment process on ios, qt-qmlios
Qt5.3 fully supports mobile development. In addition to mac, windows, and linux, it also supports ios, android, wp, meego, and other mobile platforms. This tutorial is based on the author's experience, I will explain from the beginning how to publish my own apps on ios.
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:?
Library to the root file system; s
For example, the build directory of the root file system is/opt/filesystem, and the installation directory of QT-embedded is/usr/qt-4.5.3. Use the following command to copy the QT Library
Mkdir/opt/filesystem/qt-4.5.3
Mkdir/opt/filesystem/q
This is an article in the series. Before reading this article, read Qt 5.2 for Android development in Windows to ensure that the development environment is consistent with the author.
Part of the article was forwarded/reproduced but did not indicate the source, hereby declare: Copyright All foruok, If You Need To reprint please indicate the source (http://blog.csdn.net/foruok ).
I will start from practice and take you step by step to complete the firs
After a trial, QT initiates a new process, the working directory of the process is inherited from the parent process, either through start or startdetached.In fact, for the Linux system, the QT bottom should also call fork, exec and other functions, for fork, see Apue Chines
QT InstallationThe whole process is the content to be introduced in this article, mainly to understand and learnQTThis article is mainly to learnQT InstallationThe process and implementation of specific content are described in detail in this article.
I,QtSource code compilation
1. Compile the touch screen software tslib
Decompress tslib-1.4.tar.gz
Tar-zxvft
Recently ready to do Nokia Symbian,maemo under the touch screen development. Considering the cross-platform portability of the program, the final choice is to use Qt development. Relatively speaking, the domestic Qt related documents are not much. The author will compile and install Linux under the Qt full process summ
The entire process of compiling and installing and configuring Qt in Linux
Recently, we are preparing to develop the Nokia Symbian and maemo touch screen. Considering the cross-platform portability of the program, QT development is the final choice. Relatively speaking, there are not many documents about Qt in China. T
As a cross-platform C ++-based GUI system, QT provides powerful functions for users to construct graphical user interfaces. Since the release of QT in 1996 by trolltech, the system has become the main system used by many successful graphic user applications in the world. More importantly, the Linux operating system's desktop environment system KDE is also constructed based on
Application Development in Linux: Internal Process Communication of QT
Http://www.lupaworld.com/tutorial-view-aid-7177.html
As a cross-platform C ++-based GUI system, QT provides powerful functions for users to construct graphical user interfaces. Since the release of QT in 1996 by trolltech, the system has become the
Copyright noticeThis article is an original work, please respect the author's labor results. Reprint must maintain the integrity of the article, and in the form of hyperlinks to the original author "Tingsking18" and the main site address, convenient for other friends to ask questions and correct.QT Source Parsing (a) qt creation window program, message loop, and WinMain functionQT Source Parsing (ii) deep analysis of
everything is recompiled whenever a file is modified.
The traditional way to change this is to write Makefile, and then compile with just the input make, and he will determine which files are changed and need to be recompiled.The other features that are provided by the IDE itself, such as vs. Here's a quick look at the corresponding makefile file for this example:Mingw32-make's Makefile FileCppflags =-dqt_core_lib-dqt_gui_lib-ie:qt4.7.0includeldflags =-le:qt4.7.0lib-lqtcore4-lqtgui4-lqtmai
Qt4.7New FeaturesQt quickThe development process is the content to be introduced in this article.Qt QuickThe development process. I went to the office early this morning.QtOfficial website, the long-awaited official version of 4.7 is still unavailable. However, you can't wait to share with us the new features of 4.7. The following describes how to read and understand multiple official documents and the resu
I have compiled the QT MySQL driver in http://download.csdn.net/source/2794174
The compilation process is as follows:
First install QT creator. the version I used is 2010.05 and has been integrated with mingw32.
1. Download and install MySQL SDK, http://www.mysql.com/downloads/connector/cpp/
2. Create the C:/MySQL/mysql51 directory under drive C, and copy the in
Today, in order to test the pure C Project developed using Qt Creator 3.0.0, The HelloAndroid project created in Qt 5.2 for Android development in Windows is used, add the so library generated by the pure C Project to the HelloAndroid project. The result is added, but it is not automatically copied to the generated directory and packaged into the APK.
After studying for an hour, I understood the
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