title: Access a NumericUpDown Value from a different class
body: <p>I have a project to make an Alarm Clock. When the set alarm time is equal to the current time, a popup form with the buttons "Snooze" and "OK" should be displayed.
  The "Snooze" button should set the value of a NumericUpDown Box to</p>
  
  <pre><code>Minutes.Value = Minutes.Value + 5;
  </code></pre>
  
  <p>However, I have no idea how to import the NumericUpDown value to the new class so that I can change and return it to the original/main class.</p>