In my application the main form has 4 tabs. Each of them is a different form since I need can't use panels (each of them use drawn items). There is no need for the Ok button as it is already covered by a "back" button in the form. I still don't fully understand how the minimizebox function works as it minimizes on the main form but still acts as a Ok button on the other forms. Is there a way to use the minimize button successfully on all 4 main forms?