From bab0654c1d7a189cd9672ffd6fe64c195a8c67db Mon Sep 17 00:00:00 2001
From: Vadim Lopatin <coolreader.org@gmail.com>
Date: Wed, 13 Sep 2017 18:12:23 +0300
Subject: [PATCH] fix slow closing of dlangide window

---
 src/dlangui/platforms/windows/winapp.d | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/dlangui/platforms/windows/winapp.d b/src/dlangui/platforms/windows/winapp.d
index 68d34c4b..0cf7013d 100644
--- a/src/dlangui/platforms/windows/winapp.d
+++ b/src/dlangui/platforms/windows/winapp.d
@@ -640,8 +640,12 @@ class Win32Window : Window {
         _platform.onWindowDestroyed(_hwnd, this);
     }
 
+    protected bool _closeCalled;
     /// close window
     override void close() {
+        if (_closeCalled)
+            return;
+        _closeCalled = true;
         Log.d("Window.close()");
         _platform.closeWindow(this);
     }