In my experience in using Qt, I find it would be hard to make a business app without the help of Qt experts. In other words, you need to buy […]
When you debug a QtWebEngine application, you may use qDebug to print information here and there. You need to turn on the console by adding a line “CONFIG += console” […]
I have a very simple test project based on QtWebEngine: ——webengineview.h——- #ifndef WEBENGINEVIEW_H #define WEBENGINEVIEW_H #include <QWebEngineView> class WebengineView : public QWebEngineView { Q_OBJECT public: WebengineView(QWidget *parent = 0); ~WebengineView(); […]
In Qt, there seem a lot of classes related to XML:QDomDocument, QXmlStreamReader,QXmlSimpleReader,etc. You can choose any one to parse an XML document. QDomDocument is more powerful but keep all content […]
Creating dll seems an easy task in Qt. In Qt creator, click File/New File or Project/Projects/Library/C++ Library, then simply choose a name, you will create a dll project. Click “build”, […]
We have talked about programming with Qt WebEngine. Every time you create a QWebEngineView object, you’ll start a QtWebEngineProcess.exe process. The process corresponds to the Chromium browser Qt WebEngine is […]
I use some RSA encrypt/decrypt functions in openssl lib so I installed the latest openssl lib 1.1.0 and imported the lib into my Qt project. I thought my Qt was […]
Although you can use QSettings to access Windows registry, sometimes it is more convenient to use Windows API directly,i.e., you are porting an old project that uses Windows API. The […]
The constructor of QWidget has an optional parameter:parent. I did not take care about this parameter in the past. Sometimes I create a QWidget object without providing the parent parameter, […]
I have been wondering how the size of Qt widgets is determined. I read a lot of articles about sizeHint, minimumSizeHint, minimumSize,resize, sizePolicy, geometry, layout, etc. Guess what? I am […]