From 029d47f479abadf5382daddc456790ad43a2e798 Mon Sep 17 00:00:00 2001
From: Robin Krom <robin@getgreenshot.org>
Date: Sat, 3 Sep 2022 15:11:16 +0200
Subject: [PATCH] Added some NPE protections for BUG-2991

---
 src/Greenshot.Base/Core/ClipboardHelper.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Greenshot.Base/Core/ClipboardHelper.cs b/src/Greenshot.Base/Core/ClipboardHelper.cs
index ed9f2c3e9..bfe13c121 100644
--- a/src/Greenshot.Base/Core/ClipboardHelper.cs
+++ b/src/Greenshot.Base/Core/ClipboardHelper.cs
@@ -386,6 +386,7 @@ EndSelection:<<<<<<<4
         /// <returns>IEnumerable{(MemoryStream,string)}</returns>
         private static IEnumerable<(MemoryStream stream,string filename)> IterateClipboardContent(IDataObject dataObject)
         {
+            if (dataObject == null) yield break;
             var fileDescriptors = AvailableFileDescriptors(dataObject);
             if (fileDescriptors == null) yield break;
 
@@ -499,6 +500,10 @@ EndSelection:<<<<<<<4
         public static Image GetImage()
         {
             IDataObject clipboardData = GetDataObject();
+            if (clipboardData == null)
+            {
+                return null;
+            }
             // Return the first image
             foreach (var clipboardImage in GetImages(clipboardData))
             {