title: Qt/C++ Write/Read Key-Value Pair File
body: <p>I have a Qt/C++ widget based application for the Mac. I have a series of checkboxes, radio buttons, and text fields for storing settings. I want to save them to a key value pair file when I click an Update button, and then when the application loads, read this file to set those widgets back to the proper states.</p>
  
  <p>Is there an example for how this is done somewhere?</p>