From 24f01f22baf8c7cb9c0eaee91f0a839032545eb9 Mon Sep 17 00:00:00 2001
From: Edward Wright <fasteddy@thewrightspace.net>
Date: Fri, 9 Jul 2021 09:30:05 -0400
Subject: [PATCH] Added outgoing processing for cursor keys.

---
 SimplySerial/SimplySerial.cs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/SimplySerial/SimplySerial.cs b/SimplySerial/SimplySerial.cs
index 8260c7f..12548d6 100644
--- a/SimplySerial/SimplySerial.cs
+++ b/SimplySerial/SimplySerial.cs
@@ -34,6 +34,13 @@ namespace SimplySerial
         static int bufferSize = 102400;
         static DateTime lastFlush = DateTime.Now;
 
+        static Dictionary<ConsoleKey, String> specialKeys = new Dictionary<ConsoleKey, String>
+        {
+            { ConsoleKey.UpArrow, "\x1B[A" },
+            { ConsoleKey.DownArrow, "\x1B[B" },
+            { ConsoleKey.RightArrow, "\x1B[C" },
+            { ConsoleKey.LeftArrow, "\x1B[D" }
+        };
 
         static void Main(string[] args)
         {
@@ -216,6 +223,10 @@ namespace SimplySerial
                                 Thread.Sleep(150); // sort of cheating here - by adding this delay we ensure that when we process the receive buffer it will contain the correct backspace control sequence
                             }
 
+                            // check for keys that require special processing (cursor keys, etc.)
+                            else if (specialKeys.ContainsKey(keyInfo.Key))
+                                serialPort.Write(specialKeys[keyInfo.Key]);
+
                             // everything else just gets sent right on through
                             else
                                 serialPort.Write(Convert.ToString(keyInfo.KeyChar));