title: Have a ComboBox not "use" the F4 key
body: <p>I have an application where the user wants F4 to be the "Process Orders" button.  (There is a long history around that key performing this feature.)</p>
  
  <p>Today I found out that if the focus is in a ComboBox then F4 makes the ComboBox perform a dropdown.</p>
  
  <p><strong>Is there a way to make that not happen?</strong></p>
  
  <p><em>Update:</em> I tried this using Delphi and it happens there too. While I am still curious, this seems to be a "baked in" Windows thing.  I am going to ask the users to pick another shortcut.</p>