Thou shalt programme
QHostInfo class provides an static function (lookupHost) that you can use to get any host’s (including a website’s) IP address quickly and efficiently.
Here is an example of how you can get Google’s IP Address using Qt/C++:
Continue reading “How to Find a Website’s IP Address Using Qt/C++”
Below is the approach I use to get all of the IP addresses for the local computer. Note that this method also gives you all Subnet Masks which you can then use to find all IP addresses in a subnet, say for scanning a Home Network or any similar purpose.
Continue reading “How to Find Local IP Addresses in Qt”First version of the lightweight and easy to use MSSQL Server Browser Lite was released today. Currently it supports easy table browsing and of course all commands as long as you intend to work with commands.
You can download MSSQL Browser Lite from its official download page and please don’t forget to let me know of any bugs or issues you may find.
To be able read PDF files in your Qt applications you can use any 3rd party libraries but my choice is to use Adobe Acrobat Reader ActiveX in a QAxWidget object. The approach is quite simple as long as you have Acrobat Reader ActiveX installed on your computer.
Continue reading “How to Read PDF Files Using ActiveX in Qt”
Qt provides QSplashScreen class in case you want to have a splash screen for your application without any efforts. You can use the approach below to add an splash screen image of your choice using QSplashScreen and QPixmap classes that stays for 1 second and then disappears.
Continue reading “How to Add a Splash Screen for Your Qt Application”
You can use the following approach to get a Window‘s Handle in Qt. This can be useful in case you need to call a Windows API (Win32 API) function that is not implemented in Qt or for any other purposes.
Continue reading “How to Get Window Handle (HWND) in Qt”
This question comes up a lot and is sometimes very confusing but if you just pay attention for a few seconds you’ll get past this forever, I promise you.
Continue reading “What you need to know about LPCTSTR in Windows API (Specially for Qt users)”
The same as standard C String, for this also you can go through standard C++ as shown below:
Let’s say you have a QString, like this:
QString s = "www.amin-ahmadi.com";First convert it to std::wstring and then use its c_str method, like this:
s.toStdWString().c_str()
The best solution for this would be to go through standard C++ and it means this:
Let’s say you have a QString, like this:
QString s = "www.amin-ahmadi.com";First convert it to std::string and then use its c_str method, like this:
s.toStdString().c_str()If you have tried this then you have definitely noticed that it becomes very annoying when you want to use QScroller::grabGesture with QDialogs that are opened using exec and have used QScroller::grabGesture in the calling (parent) window or dialog.
Continue reading “How to make QScroller grabGesture work with QDialog”