How to link opencv in QtCreator and use Qt library

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Finally I am starting to be happy. When adjusting this question I had to try all the ways how to define LIBS. Listing them manually helped, at first I wrote them somehow wrong.

This is how it works finally:

LIBS += -LC:\\Programs\\opencv24\\opencv_bin2\\bin \
    libopencv_core240d \
    libopencv_highgui240d \
    libopencv_imgproc240d \
    libopencv_features2d240d \
    libopencv_calib3d240d \

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