From 877c65470296a3fb3cd48faf7de5bfcce48eeba7 Mon Sep 17 00:00:00 2001
From: Darth Affe <darthaffe@wyrez.org>
Date: Mon, 11 Dec 2017 09:44:57 +0100
Subject: [PATCH] Added property to the surface to get the last update-time

---
 RGB.NET.Core/RGBSurfaceUpdater.cs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/RGB.NET.Core/RGBSurfaceUpdater.cs b/RGB.NET.Core/RGBSurfaceUpdater.cs
index a7d83cb..6582822 100644
--- a/RGB.NET.Core/RGBSurfaceUpdater.cs
+++ b/RGB.NET.Core/RGBSurfaceUpdater.cs
@@ -24,6 +24,11 @@ namespace RGB.NET.Core
             set => SetProperty(ref _updateFrequency, value);
         }
 
+        /// <summary>
+        /// Gets the time it took the last update-loop cycle to run.
+        /// </summary>
+        public double LastUpdateTime { get; private set; }
+
         private UpdateMode _updateMode = UpdateMode.Manual;
         /// <summary>
         /// Gets or sets the update-mode.
@@ -85,7 +90,8 @@ namespace RGB.NET.Core
 
                 Update();
 
-                int sleep = (int)((UpdateFrequency * 1000.0) - ((DateTime.Now.Ticks - preUpdateTicks) / 10000.0));
+                LastUpdateTime = ((DateTime.Now.Ticks - preUpdateTicks) / 10000.0);
+                int sleep = (int)((UpdateFrequency * 1000.0) - LastUpdateTime);
                 if (sleep > 0)
                     Thread.Sleep(sleep);
             }