From f8568ff821ff74522a51c4705307c27022346a09 Mon Sep 17 00:00:00 2001
From: Dadoum <24679280+Dadoum@users.noreply.github.com>
Date: Mon, 18 May 2020 19:48:11 +0200
Subject: [PATCH] Fix Container.ForAll

A SIGSEGV occurs without this change  (Invalid pointer: 0x00 fix)
---
 Source/Libs/GtkSharp/Container.Forall.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Source/Libs/GtkSharp/Container.Forall.cs b/Source/Libs/GtkSharp/Container.Forall.cs
index ba3fabe47..788a0dd5f 100644
--- a/Source/Libs/GtkSharp/Container.Forall.cs
+++ b/Source/Libs/GtkSharp/Container.Forall.cs
@@ -100,7 +100,7 @@ namespace Gtk
 					$"{nameof(ForAll)} can only be called as \"base.{nameof(ForAll)}()\". Use {nameof(Forall)}() or {nameof(Foreach)}().");
 			}
 
-			gtksharp_container_base_forall(Handle, include_internals, callback, IntPtr.Zero);
+			gtksharp_container_base_forall(Handle, include_internals, callback, ((ForAllCallbackHandler) callback.Target).data);
 		}
 
 		static ForAllNativeDelegate InternalForAllNativeDelegate(GLib.GType gtype)
@@ -153,4 +153,4 @@ namespace Gtk
 			}
 		}
 	}
-}
\ No newline at end of file
+}