How to use Qt libraries in a non-Qt project

[wasawi2]

Dear all,

I have a C++ project in QtCreator that uses a qbs file to setup all libraries included in the project. The project works well as it is.
I am working on MacOS Ventura and I would like to use Qt widgets and Qt windowing system as an interface but I don't know how to link Qt headers and frameworks to the project.

Could anyone provide any hints?

Thank you very much,
w

[Christian Ehrlicher]

@wasawi2 said in How to use Qt libraries in a non-Qt project:

Could anyone provide any hints?

Use a proper build system like qbs, qmake or cmake and let those apps do the work for you finding and linking the correct libs.

[jsulm]

@Christian-Ehrlicher "I have a C++ project in QtCreator that uses a qbs"

[Christian Ehrlicher]

@jsulm So where is the problem then?

[jsulm]

@Christian-Ehrlicher How to add Qt libs to the project (I never used QBS, so don't have an answer).

[SGaist]

Hi,

Did you already went through the Qbs introduction ?

[wasawi2]

@SGaist thank you very much for the suggestion.

I had a look at it but it seems to have an overwhelming amount of information.
It would be great if someone could give a bit of guidance. My guess is that including Qt libraries must be a matter of 5 to 10 lines of QBS code, am I right?

If anyone can give a little help it would be very much appreciated.

Thank you,
w

[SGaist]

@wasawi2 did you try the minimal hello world hinted on that page linked ?

Application {
    name: "helloworld"
    files: ["main.cpp"]
    Depends { name: "Qt.core" }
    Depends { name: "cpp" }
    cpp.optimization: "ludicrousSpeed"
}

[wasawi2]

thank you,
At the end It was just including these few lines what made the trick.
I don't understand at all how QtCreator finds the header files and frameworks but it seems to work out.

Thanks again,
w

        Depends { name: "Qt.core" }
        Depends { name: "Qt.widgets" }
        Depends { name: "Qt.gui" }
        Depends { name: "Qt.opengl" }