Qt with eclipse C++

[GastonMelo]

Hi to all, im using C++ eclipse and make a simple GUI on Qt (Im using linux Tumbleweed). The GUI is a simple window with 2 buttons . I use the UIC file to generate a cpp file (header file) and then import that file into eclipse, also I added the Qt include folder into eclipse library path. Till here no problems, when I try to display the GUI on eclipse using this code inside main :

        Ui::MainWindow *dialog;
         QMainWindow w;
	dialog = new Ui::MainWindow();
	dialog->setupUi(&w);
	w.show();

this error is shown:

undefined reference to `QMainWindow::QMainWindow(QWidget*, QFlagsQt::WindowType)'

I have this includes :

#include "QtWidgets/QApplication"
#include "QtWidgets/QDialog"

Im new in the Qt world. Also is possible to get a tutorial about eclipse C++ and Qt?
Thanks in advance
Gastón

[GastonMelo]

I add Qt5Core Qt5Gui and Qt5Widgets and it works.
Gaston

[jsulm]

@GastonMelo said in Qt with eclipse C++:

I added the Qt include folder into eclipse library path

Do you mean to include path?
The error message means that you're not linking against Qt libs.

[GastonMelo]

hi jsulm,
you are right, I add the Qt include folder to eclipse include path. Looking Qt library folder, do I need to add all those library to eclipse library?
Thanks
Gastón

[GastonMelo]

I add Qt5Core Qt5Gui and Qt5Widgets and it works.
Gaston

[Pablo J. Rogina]

@GastonMelo if your issue is solved please don't forget to mark your post as such

[Kent-Dorfman]

When last I looked at the Qt plugin for eclipse it was hopelessly broken. At the time eclipse had a lot of problems parsing the Qt framework include files and MOC system for code checking. Are you using the plugin, or just using eclipse as an editor?