From b0b084835f828375e5084841722db8549e221b1c Mon Sep 17 00:00:00 2001
From: James Elliott <james.elliott@singlewire.com>
Date: Mon, 15 Feb 2021 17:22:20 -0600
Subject: [PATCH] Treat closing dialog (e.g. by pressing ESC) as cancel.

---
 src/seesaw/core.clj | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/seesaw/core.clj b/src/seesaw/core.clj
index 9a240f70..30ade550 100644
--- a/src/seesaw/core.clj
+++ b/src/seesaw/core.clj
@@ -3329,6 +3329,7 @@
     (condp = result
       JOptionPane/NO_OPTION false
       JOptionPane/CANCEL_OPTION nil
+      JOptionPane/CLOSED_OPTION nil
       true)))
 
 (defn confirm