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Qt embedded graphics development Daquan and QT development manual, I feel that many people will want this information. After all, there are quite a lot of people learning embedded technology. Today, I gave you the truth about this embedded graphics development Daquan, which was also downloaded in the intruder Network Technology Forum. Ha, nonsense, the following is a basic introduction, as well as their embedded technology exchange group: 787059199 Interested friends can add and communicate together, and this information can also be found. The QT manual has not been released, but there is in the link, you can take a look.

Download link: https://bbs.usoftchina.com/thread-208638-1-1.html

Qt embedded Graphics Development (introduction)

1. Installation of Qt/Embedded development environment

Generally speaking, applications developed by Qt/Embedded will eventually be released to small devices with embedded Linux operating system, so using a PC or workstation with Linux operating system to complete Qt/Embedded development is of course the most ideal environment, although Qt/Embedded can also be installed on Unix and Windows systems.     below we will show you how to set up a Qt/Embedded development environment on a machine with a Linux operating system.    first, you need to have three software installation packages: the tmake tools installation package, the Qt/Embedded   installation package, and the X11 installation package of Qt.

Qt embedded Graphics Development (basic)

Qt   is an application development framework that supports multi-operating system platforms. Its development language is C++. At first, Qt mainly provides a unified and exquisite graphical user programming interface for cross-platform software developers, but now it also provides a unified programming interface for network and database operations. Just as Microsoft provided a friendly and exquisite user interface for the operating system at that time, today, due to the emergence of Qt, the cross-platform development framework of Trolltech, UNIX and LINUX operating systems approach ordinary users with more convenient and exquisite man-machine interfaces.     Qt is provided to developers in the form of tool kits, including graphic designers, Makefile authoring tools, font internationalization tools, Qt's C++ class library, and so on. When talking about C++ class library, we naturally think of MFC, yes, Qt class library is also equivalent to MFC development library, but Qt class library is a cross-platform class library, that is to say, Qt class library encapsulates access details suitable for different operating systems, this is the charm of Qt.  

Qt embedded Graphics Development (practical part)

Earlier, we introduced in detail the installation and use of the Qt embedded tool development kit, but this introduction is not enough for a real commercial embedded application development. The development of embedded applications is basically completed on workstations or PCs. We debug and run embedded applications on the working machine, and display the output results on a simulator that simulates the display terminal of small devices. In the later stage of development, according to the embedded hardware platform we choose, we should compile and link the embedded application into the binary object code suitable for running on this hardware platform. In addition, because the application uses the library of Qt/Embedded, we also need to compile and link the source code of the Qt/Embedded library into a binary target code base suitable for use on this hardware platform. The development process ends when a Qt/Embedded application is deployed to a small device and runs reliably.  

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