title: Draw a single pixel on Windows Forms
body: <p>I'm stuck trying to turn on a single pixel on a Windows Form.</p>
  
  <pre><code>graphics.DrawLine(Pens.Black, 50, 50, 51, 50); // draws two pixels
  
  graphics.DrawLine(Pens.Black, 50, 50, 50, 50); // draws no pixels
  </code></pre>
  
  <p>The API really should have a method to set the color of one pixel, but I don't see one.</p>
  
  <p>I am using C#.</p>