From 951f3f1a6dd3a6b82661ff1c356c13a1feaa2f86 Mon Sep 17 00:00:00 2001
From: MikeTheWatchGuy <mike_barnett@hotmail.com>
Date: Tue, 17 Jul 2018 13:43:58 -0400
Subject: [PATCH] New Form Function - CloseNonBlockingForm, fix for context
 managers

Previously an exception within the "with" block was not correctly passing along exceptions.

New function to help with non-blocking forms.  For forms that need to be closed that haven't been closed by a button, a new function was needed.  CloseNonBlockingForm is the new function.
---
 PySimpleGUI.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/PySimpleGUI.py b/PySimpleGUI.py
index 17e039e4..d3724cd7 100644
--- a/PySimpleGUI.py
+++ b/PySimpleGUI.py
@@ -686,6 +686,10 @@ class FlexForm:
         self.RootNeedsDestroying = True
         return results
 
+    def CloseNonBlockingForm(self):
+        self.TKroot.destroy()
+        _my_windows.NumOpenWindows -= 1 * (_my_windows.NumOpenWindows != 0)  # decrement if not 0
+
     def OnClosingCallback(self):
         return
 
@@ -694,7 +698,7 @@ class FlexForm:
 
     def __exit__(self, *a):
         self.__del__()
-        return self
+        return False
 
     def __del__(self):
         for row in self.Rows: