title: VSCode Extension API - on scroll
body: <p>Is there a way to detected when scrolling in the VSCode extension API. The only available functions I see are:</p>
  
  <pre class="lang-ts prettyprint-override"><code>onDidChangeActiveTextEditor: Event&lt;TextEditor&gt;
  
  onDidChangeTextEditorOptions: Event&lt;TextEditorOptionsChangeEvent&gt;
  
  onDidChangeTextEditorSelection: Event&lt;TextEditorSelectionChangeEvent&gt;
  
  onDidChangeTextEditorViewColumn: Event&lt;TextEditorViewColumnChangeEvent&gt;
  
  onDidChangeVisibleTextEditors: Event&lt;TextEditor[]&gt;
  
  onDidChangeWindowState: Event&lt;WindowState&gt;
  
  onDidCloseTerminal: Event&lt;Terminal&gt;
  </code></pre>
  
  <p>I can file this as a feature request. But is there any way to circumvent this behavior?</p>