From 46c64b01329efa0b41ca2d126755ac247b5104af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eugen=20H=C3=B6glinger?= <eugen@hoeglinger.name>
Date: Tue, 1 Jun 2021 17:08:23 +0200
Subject: [PATCH] =?UTF-8?q?=C3=84nderung?=
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- Abfrage eingefügt, die den Button 'DLL-Info' unterdrückt, wenn
   die EXE und die DLLs in eine EXE gepackt sind.
   Das verhindert einen Fehler, weil keine DLL gefunden werden.
---
 AboutBox.sln         |  2 +-
 AboutBox/AboutBox.cs | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/AboutBox.sln b/AboutBox.sln
index 47cac6d..ff7e9e6 100644
--- a/AboutBox.sln
+++ b/AboutBox.sln
@@ -26,7 +26,7 @@ Global
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
-		RESX_NeutralResourcesLanguage = de-DE
 		SolutionGuid = {15165E4A-C2AA-46F2-94D4-379F9DC52145}
+		RESX_NeutralResourcesLanguage = de-DE
 	EndGlobalSection
 EndGlobal
diff --git a/AboutBox/AboutBox.cs b/AboutBox/AboutBox.cs
index e21aea1..73836d5 100644
--- a/AboutBox/AboutBox.cs
+++ b/AboutBox/AboutBox.cs
@@ -269,6 +269,8 @@ namespace Eugen.ESystem.Windows.Forms
         private void AboutBox_Load(object sender, EventArgs e)
         {
             DllInfoSelected = false;
+
+            Appearance();
         }
 
         protected string ProgramName { private set; get; }
@@ -548,5 +550,23 @@ namespace Eugen.ESystem.Windows.Forms
             this.MaximumSize = new Size(width, hight);
             this.MinimumSize = new Size(width, hight);
         }
+
+        private void Appearance()
+        {
+            //Sind im Startup Verzeichnis keine eigenen DLLs, dann ist die EXE und die DLLs wahrscheinlich gepackt. Den Button 'DLL-Info' ausblenden, weil es sonst zu Fehler kommt
+            bool dllExist = false;
+
+            DirectoryInfo ParentDirectory = new DirectoryInfo(Application.StartupPath);
+            foreach (FileInfo fi in ParentDirectory.GetFiles())
+            {
+                if (fi.Extension.ToLower() == ".dll")
+                {
+                    dllExist = true;
+                }
+            }
+
+            buttonDllInfo.Enabled = dllExist;
+            buttonDllInfo.Visible = dllExist;
+        }
     }
 }