title: C++ Windows Forms - Password Strength
body: <p>I've been following YouTube tutorials most of the day now and I think I've got the basic hang of forms. I'm aiming to create something like this below, which checks a users password and shows how strong it is: </p>
  
  <p><img src="https://i.stack.imgur.com/PSgHt.gif" alt="enter image description here"></p>
  
  <p>This is what I have at the moment:</p>
  
  <p><img src="https://i.stack.imgur.com/tkWop.gif" alt="enter image description here"></p>
  
  <p>I'd like to know the basic theory behind how the top form works, specifically how I can take the user input of password in my form and just get it to print and update in realtime underneath below. I'm not quite sure what tool is used to do that, or for that matter what tool is used to create the colour changing box.</p>
  
  <p>Any help or direction is appreciated, thanks!</p>