How to refuse close Dialog when press Esc Key

Question

As you can see in the documentation of CreateDialog:

If the dialog contains no DefaultButton or CancelButton, pressing Enter or Esc will close the dialog without taking any other action.

In dialogs created with CreateDialog, pressing Enter is effectively equivalent to clicking the DefaultButton, and Esc to clicking the CancelButton.

For example I have an InputField, but when I press Esc key to write any expression, the dialog closes.

I'm trying with the fuction:

CreateDialog[Overlay[{DefaultButton[], CancelButton[], InputField[]},{3}, 3]]

But it does not work.

How can change this behavior in Dialog?

Answer 1

You can overwrite specific NotebookEventActions which are responsible for that:

CreateDialog[
 Overlay[{DefaultButton[], CancelButton[], InputField[]}, {3}, 3], 
 NotebookEventActions -> {
   "EscapeKeyDown" :> {}, 
   "ReturnKeyDown" :> {},
   PassEventsDown -> True
 }
]

PassEventsDown -> True allows "\[AliasDelimiter]" to appear in the InputField after pressing Esc.