From 97b3281553b54c16292cd4d45bd11a8cfe79e54b Mon Sep 17 00:00:00 2001
From: Rich <rmark@volian.com>
Date: Thu, 22 Feb 2018 18:44:13 +0000
Subject: [PATCH] B2018-038 MathType replaces EQNEDT32.EXE

---
 .../Volian.Controls.Library/StepTabRibbon.cs  | 37 ++++++++++++++++---
 1 file changed, 32 insertions(+), 5 deletions(-)

diff --git a/PROMS/Volian.Controls.Library/StepTabRibbon.cs b/PROMS/Volian.Controls.Library/StepTabRibbon.cs
index 49579e06..491596fb 100644
--- a/PROMS/Volian.Controls.Library/StepTabRibbon.cs
+++ b/PROMS/Volian.Controls.Library/StepTabRibbon.cs
@@ -1171,17 +1171,43 @@ namespace Volian.Controls.Library
 				folderPath = @"C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE";
 				fi = new System.IO.FileInfo(folderPath);
 				if (fi.Exists) return fi.FullName;
-				// B2018-038 MathType replaces EqnEdt32.EXE
-				//folderPath = @"C:\Program Files\MathType\MathType.EXE";
-				//fi = new System.IO.FileInfo(folderPath);
-				//if (fi.Exists) return fi.FullName;
 				return null;
 			}
 			if (retval == null)
 				_MyLog.WarnFormat("Equation Editor executable could not be found.");
 			return retval;
 		}
-
+		// B2018-038 MathType Replacement for EQNEDT32.EXE
+		private static string GetMathType()
+		{
+			string retval = null;
+			try
+			{
+				RegistryKey key = Registry.ClassesRoot;
+				string rootName = key.Name;
+				string clsid = GetDefaultKeyValue(key.Name + "\\DSEquations\\CLSID");
+				retval = GetDefaultKeyValue(key.Name + "\\CLSID\\" + clsid + "\\LocalServer32");
+			}
+			catch (Exception ex)
+			{
+				_MyLog.WarnFormat("MathType Equation Editor is not correctly configured in the registry.");
+				string folderPath = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles);
+				folderPath += @"\MathType\MathType.EXE";
+				System.IO.FileInfo fi = new System.IO.FileInfo(folderPath);
+				if (fi.Exists) return fi.FullName;
+				folderPath = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles).Replace(" (x86)", "");
+				folderPath += @"\MathType\MathType.EXE";
+				fi = new System.IO.FileInfo(folderPath);
+				if (fi.Exists) return fi.FullName;
+				folderPath = @"C:\Program Files\\MathType\MathType.EXE";
+				fi = new System.IO.FileInfo(folderPath);
+				if (fi.Exists) return fi.FullName;
+				return null;
+			}
+			if (retval == null)
+				_MyLog.WarnFormat("Equation Editor executable could not be found.");
+			return retval;
+		}
 		private static string GetVisio() // Added support for Visio
 		{
 			string retval = _SpecifiedVisioPath; // use the Visio path specified by the user
@@ -1230,6 +1256,7 @@ namespace Volian.Controls.Library
 				{
 					_OleObjectEditors = 0;// no OLE Object Editors
 					_EqnEdtPath = GetEqnEdt();
+					if (_EqnEdtPath == null) _EqnEdtPath = GetMathType();// B2018-038 MathType Replacement for EQNEDT32.EXE
 					// B2017-067 check for empty string as well as a null for paths to the Equation Editor and Visio
 					if (_EqnEdtPath != null && _EqnEdtPath != "") _OleObjectEditors += 1;
 					_VisioPath = GetVisio();