1/31/2024 0 Comments Qt creator 5.7It’s important to include the Q_OBJECT macro in all the classes that are inheriting from QObject. The main window is defined in the header file MainWindow.h and it inherits from QMainWindow: class MainWindow : public QMainWindow The last line of code launches the Qt application and waits for it to return an exit code before terminating the program. The main function initialises the application, then creates and opens the main window: int main(int argc, char * argv) Here it’s also possible to set a version control system to use for the project, but feel free to not set any for now.Ĭlicking on the button Finish will create the project and generate 3 C++ files ( main.cpp, MainWindow.h and MainWindow.cpp) and a project file used by Qt Creator and qmake (the Qt building tool) to build the project. In the final step of the project creation you will get a summary of what defined in the previous steps. We won’t need it because we will be coding the GUI from scratch. The form file is used by the integrated visual interface editor Qt Designer. You can leave everything as it is, but make sure to uncheck the Generate form field. The fourth step is defining the details of the initial main window class that will be generated by the template. I am developing on Linux so I am going for the kit Desktop Qt 5.7.0 GCC 64bit, but you might see different kits if developing on/for different platforms. Qt Creator kits are groups of settings used for building and running projects for different platforms. The third step is selecting the kit(s) for building your application. For my project I decided to use “BasicApplication” for the name, but obviously you can use anything you want. The second step is selecting a name for your project and a location where to save it. The first step is to create a new project in Qt Creator from one of the available templates:įor a graphical application you want to select the Qt Widgets Application template. Using other IDEs is possible, but I don’t recommend it and for this tutorial I will use Qt Creator. The main reason is that Qt Creator is the official Qt IDE and it offers full integration with the framework and all the other development tools. When working with Qt, especially when developing cross-platform software, it’s recommended to use Qt Creator as IDE. Nothing too fancy, but these are the basic elements of most desktop applications and you can use this code as starting template for your projects. This tutorial will guide you through the creation of a basic window with a menu bar, a menu and a status bar. If you need to create an application with a GUI in C++ you should definitely consider Qt for it. Qt is a cross-platform framework and a collection of tools for creating applications which can run on desktop, embedded and mobile operating systems. Full project and source code are provided. It seems like one of the system libraries I installed during the Git compile process broke something in the 5.7.0 release installation, but there are no error messages or other indications of what is wrong.This tutorial is an introduction to Qt programming and will teach you how to create an application with Qt and C++. However, I can't get the UI designer GUI to show up, and the source-list viewer won't expand folders or show source files.) I opened the project and nothing happened, but when I minimize then restore the window, some of the panes are updated as expected. (No, wait, that's not exactly true.I'm playing with QtCreator in another window, and there's something wrong with screen updating. It starts up, but when I try to open the old project, nothing happens. The release version of QtCreator doesn't work any more. So I wanted to go back to the released version of 5.7.0 and try what I found there, but. That build went OK (I didn't install it) and I may have figured out my original problem (possibly ambiguous C++ overload resolution). It seemed like something I could track down, so I built a development version of 5.7.0 from Git sources according to these instructions. I'm a newbie Qt developer, using the released version of 5.7.0 on Debian-圆4, and I found (what looked like) a bug in QString.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |