The wizard places the Notepad widget there. The center area can be occupied by any kind of widget. It has its own layout to which you can add a menu bar, dock widgets, toolbars, and a status bar. The wizard creates an application that uses a QMainWindow. ui file and creates a corresponding C++ header file, ui_notepad.h. When you build the application, Qt Creator launches the Qt User Interface Compiler (uic) that reads the. When you open the notepad.ui file in Qt Creator, it automatically opens in the integrated Qt Designer. The wizard generates a user interface definition in XML format: notepad.ui. We will take a closer look at the file contents in the following sections. The files come with the necessary boiler plate code for you to be able to build and run the project.

notepad.ui - the UI form for the Notepad widget.notepad.h - the header file of the notepad class for the Notepad widget.notepad.cpp - the source file of the notepad class of the Notepad widget.main.cpp - the main source file for the application.The Qt Widgets Application wizard creates a project that contains a main source file and a set of files that specify a user interface (Notepad widget): In the Class Information dialog, type Notepad as the class name and select QMainWindow as the base class. To create the Notepad project, select File > New Project > Application (Qt) > Qt Widgets Application > Choose, and follow the instructions of the wizard.

Note: The UI text in Qt Creator and the contents of the generated files depend on the Qt Creator version that you use.

Notepad++ written in qt