From 710770f4cba380e83de1902f430c0b23680aca58 Mon Sep 17 00:00:00 2001
From: Eugene <ewang@docufree.com>
Date: Wed, 30 Aug 2017 16:05:29 -0400
Subject: [PATCH] Testing a fix for hp scanjet.

---
 src/NTwain/TwainSessionInternal.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/NTwain/TwainSessionInternal.cs b/src/NTwain/TwainSessionInternal.cs
index aba78d9..1715707 100644
--- a/src/NTwain/TwainSessionInternal.cs
+++ b/src/NTwain/TwainSessionInternal.cs
@@ -276,7 +276,9 @@ namespace NTwain
 
                 // In any event the trick to get this thing working is to return from the callback first
                 // before trying to process the msg or there will be unpredictable errors.
-                _msgLoopHook?.BeginInvoke(() =>
+
+                // changed to sync invoke instead of begininvoke for hp scanjet, not sure if will break other scanners :(
+                _msgLoopHook?.Invoke(() =>
                 {
                     HandleSourceMsg(msg);
                 });