From ea112bddc1a9f53f0ff5bc5b50b9fbf74d22c4da Mon Sep 17 00:00:00 2001
From: lllucius <lllucius@47890b92-0858-11df-a26f-8b716316a5bc>
Date: Tue, 6 Jan 2015 18:01:04 +0000
Subject: [PATCH] Fix crash reported by Steve

Steps to reproduce:
1) Launch Audacity
2) File > New
3) Generate a sound in the new project
4) Open a LADSPA effect
5) In second project: File > Close, don't save changes.
6) In first project, generate a sound.
7) Click "Play" button - crash :-(
---
 src/effects/Effect.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/effects/Effect.cpp b/src/effects/Effect.cpp
index 7187c5dc4..f77446d0f 100644
--- a/src/effects/Effect.cpp
+++ b/src/effects/Effect.cpp
@@ -2192,6 +2192,19 @@ EffectUIHost::~EffectUIHost()
 {
    if (mInitialized)
    {
+      mInitialized = false;
+
+      wxTheApp->Disconnect(EVT_AUDIOIO_PLAYBACK,
+                           wxCommandEventHandler(EffectUIHost::OnPlayback),
+                           NULL,
+                           this);
+
+      wxTheApp->Disconnect(EVT_AUDIOIO_CAPTURE,
+                           wxCommandEventHandler(EffectUIHost::OnCapture),
+                           NULL,
+                           this);
+
+      EffectManager::Get().RealtimeRemoveEffect(mEffect);
    }
 
    if (mClient)