title: No suitable user-defined conversion from "cv::Scalar" to "CvScalar" exists
body: <p>I am traying to run old c++ code in pc with this caracteristcs:</p>
  <ul>
  <li>opencv: 3.4.14</li>
  <li>OS: Win 10</li>
  <li>code: c++</li>
  </ul>
  <p>An example of the code:</p>
  <pre class="lang-cpp prettyprint-override"><code>CvScalar color = CV_RGB(255, 255, 255);
  </code></pre>
  <p>But return the next error:</p>
  <pre class="lang-cpp prettyprint-override"><code>Severity    Code    Description Project File    Line    Suppression State
  Error   C2440   'initializing': cannot convert from 'cv::Scalar' to 'CvScalar'  
  </code></pre>