c++ - How to use opencv cvKnearest class from delphi xe2 -

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i writing image processing delphi program using opencv delphi (https://github.com/laex/delphi-opencv) has reference of function cvknearest . (a class containing functions written in c++) how reference functions?

see branch "classes" in https://github.com/laex/delphi-opencv
examples:
* samples\classes\cvknearest\class_2d_point_classification.dpr
* samples\classes\cvknearest\cvknearest/class_labknn.dproj


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