We know that . in a regular express means “any character”. But it is not true when . is in []. A . in [] just means . itself. If […]

One of the methods to run your code in another process(remote process)(so-called code injection) is using Windows Hook. The process is as follows: You write your code in a function […]

Inline assembly in VC is very simple. You embed the assembly code in C/C++ code as if you are writing a pure assembly language file. For example, the following inline […]

I am compiling a dll with 3 .c files and one .cpp file using mingw gcc, when this error occurs “undefined reference to `__gxx_personality_sj0′”.  The reference comes from the .cpp […]

I never used Qt creator to create projects for source file management because I am scared by the mysterious .pro, .pro.user, Makefile Makefile.Debug, Makefile.Release, and the build directories Qt creator creates for […]

The following code can print the current web page to an image. page()->setViewportSize(page()->mainFrame()->contentsSize()); QImage *image=new QImage(page()->mainFrame()->contentsSize(), QImage::Format_ARGB32); QPainter *painter = new QPainter(image); page()->mainFrame()->render(painter); image->save(QString(“images/%1.png”).arg(name));   However there are some issues […]

By default, if you click a link on a QWebView window, QWebView will open the url in its own window if the link has not a target=”_blank” attribute, and do […]

Today, when I opened one of my qt program(normally this program will open a website on its GUI), I found it could not load and display the website as usual. […]

Although it is called QFileInfo, QFileInfo not only handle files but also directories. This function is often used to traverse all items under a directory including files and sub-directories. QFileInfo::fileName() […]

You may think it is easy to get the QWebFrame object for an iframe element in a web page since  QWebFrame is formed by iframe/frame(http://doc.qt.io/qt-5/qwebview.html) and there must be a […]