From 4e7dd1018b3566776529119b3b912d455644a795 Mon Sep 17 00:00:00 2001
From: Thomas A Caswell <tcaswell@gmail.com>
Date: Sat, 3 Dec 2022 15:41:56 -0500
Subject: [PATCH] FIX: do not use deprecated API in gtk4 backend

closes #24602
---
 lib/matplotlib/backends/backend_gtk4.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/matplotlib/backends/backend_gtk4.py b/lib/matplotlib/backends/backend_gtk4.py
index c776fa7244c2..a058fc6f8a2d 100644
--- a/lib/matplotlib/backends/backend_gtk4.py
+++ b/lib/matplotlib/backends/backend_gtk4.py
@@ -5,7 +5,8 @@
 import matplotlib as mpl
 from matplotlib import _api, backend_tools, cbook
 from matplotlib.backend_bases import (
-    ToolContainerBase, KeyEvent, LocationEvent, MouseEvent, ResizeEvent)
+    ToolContainerBase, KeyEvent, LocationEvent, MouseEvent, ResizeEvent,
+    CloseEvent)
 
 try:
     import gi
@@ -79,7 +80,7 @@ def __init__(self, figure=None):
         style_ctx.add_class("matplotlib-canvas")
 
     def destroy(self):
-        self.close_event()
+        CloseEvent("close_event", self)._process()
 
     def set_cursor(self, cursor):
         # docstring inherited