Web developers are quite familiar with Base64 and its usage. To put it simply, whenever to want to store, transfer (send or receive) or do anything else with the contents of a binary file (in this example, an image file) you can use Base64 encoding to simplify things by converting unreadable binary contents to a readable string.
Qt does not have mouse hover, or mouse over (as some people call it) events in its widgets by default but it provides the means to do it quite easily if you just know how to inherit a class and add some protected functions to it. Here is an example that shows how to create a push button (QPushButton) that reacts to mouse hover events.
QRecorder (version 1.0.1) is a new application I wrote for screen recording. Record your desktop activities with this simple tool. It requires no configurations and it’s easy to use. It supports all windows versions from the good old XP to the recent Windows 10. You can record part or whole of the screen. You can make QRecorder totally invisible while recording. Well, head to download page and test it for yourself. Click on the icon below to be taken to QRecorder official webpage.
Unfortunately for Cross-Platform developers, there is no standard method or API that you can code once and use to have TTS (Text to Speech) in your programs. You may find some 3rd party libraries that allow a great deal of reusability in different Operating Systems but at some point they also prove to do less than what you require. Qt has promised to make this available for us in the near feature but it has been postponed all the time. The main reason is that there is a huge race between major Software companies (Microsoft, Google and Apple) in this field and it seems that they somehow make it work in totally different ways on purpose. So anyway that is why I decided to share the method to have TTS in Qt in all well known operating systems and I am going to start with the easiest one, which is Windows. Continue reading “How to Use Text to Speech in Qt for Windows”
Another update on Picture Stamper. Now Mac OS X users can also download and use this tool for free! It’s not available in Mac App Store yet but hopefully it will, soon, and also in many other trusted download websites (just like Windows version).
I released Picture Stamper officially just moments ago, and for the best possible price, ABSOLUTELY FREE, for anyone who needs a tool such as this. For so long I needed an application to stamp my photos before sharing them on the web but in the end I had no other choice but to write it myself because all options were either too complicated and pricy or they were just not what I needed.
Finding edges is crucial in many image processing applications because it gives a better understanding of the elements in a picture. This post contains download link to an example project (ready to build and run) in Qt that uses nothing but the existing Qt classes, namely QImage, to detect and display edges in a QImage.
To get a list of all available Windows Media Codecs in Qt you have no other choice but to use C++ interfaces from Windows Media Format SDK. In this post I am sharing an example source code which allows you to do that in Qt. If you are developing using Qt and MSVC compilers for Windows then you can definitely download this source code, build and run it for yourself.
I start Qt for Android projects all the time and setting up all the required folders and including libraries can take some time, assuming that I don’t make any mistakes during the initialization of the project. Previously I had posted this about how to add OpenCV libraries to your Qt for Android project but it proved to be not enough and I also receive questions about how to create a correct project with OpenCV all the time.
If you are in a situation that you want to upload a file to a FTP server or delete, rename, copy some files on a FTP server in your Qt programs there are no definite choices anywhere. At least that is the case with Qt 5.5. You usually have to use a platform dependent library. So here it is. I use this library when I need FTP access in Qt for Windows. It uses Windows API therefore you won’t be able to use this in Linux or MAC. Download from the link provided below (you may have to register at codeproject.com) and follow the steps to be able to use it in your Qt programs.