void icvGetMiddleAnglePoint(CvPoint2D64f basePoint, CvPoint2D64f point1, CvPoint2D64f point2, CvPoint2D64f* midPoint) {
    void *fptr;

    fptr = dlsym(_Chcv_handle, "icvGetMiddleAnglePoint_chdl");
    if(fptr == NULL) {
        fprintf(_stderr, "Error: %s(): dlsym(): %s\n", __func__,  dlerror());
        return;
    }
    dlrunfun(fptr, NULL, icvGetMiddleAnglePoint, basePoint, point1, point2, midPoint);
}
