title: How to create a Qt window behave like a message box?
body: <p>I want to create a Qt popup window which will behave like a message box in Qt. That means the rest of the GUI must blocked until that popup window is dismissed. This may be a child question, but can anyone pls help me with this ?</p>
  
  <p>Thanks...    :)</p>
  
  <p>Edit:</p>
  
  <p>I want to use forms, labels, buttons and some other widget types in that popup window.</p>