code: @Nonnull
    public FineUploader5Validation setImageMaxWidth (@Nonnegative final int nImageMaxWidth)
    {
      ValueEnforcer.isGE0 (nImageMaxWidth, "ImageMaxWidth");
      m_nValidationImageMaxWidth = nImageMaxWidth;
      return this;
    }
docs: Restrict images to a maximum width in pixels (wherever possible).
  
  @param nImageMaxWidth
  New value. Must be &ge; 0.
  @return this for chaining