title: How to force MessageBox to display as top window
body: <p>I don't known how to explain what I mean.
  I created a program (A), that shows a  MessageBox after a time out.</p>
  
  <p>It only shows the MessageBox like I want, if my program (A) is activated. But when I'm working with another program (B) (my program - A - is not active), the MessageBox only appears in the task bar, like this: </p>
  
  <p><img src="https://i.stack.imgur.com/iXrBZ.png" alt="enter image description here"></p>
  
  <p>I want to this:</p>
  
  <p><img src="https://i.stack.imgur.com/WxC5p.png" alt="enter image description here"></p>
  
  <p>Can anyone help me create a messageBox that will be top-most (what is the name of the method)?</p>