- start implementing fader

Lib.Audio/Controls/Fader.cs

@@ -2,12 +2,25 @@
 // Created: 2021-04-07
 // Copyright(c) 2021 SimonG. All Rights Reserved.
 
+using System;
 using Lib.Audio.Controls.Interfaces;
 
 namespace Lib.Audio.Controls
 {
     public class Fader : IFader
     {
+        private float _position;
 
+        public float Position
+        {
+            get => _position;
+            private set
+            {
+                _position = value;
+                PositionChanged?.Invoke(this, _position);
+            }
+        }
+
+        public event EventHandler<float> PositionChanged;
     }
 }

Lib.Audio/Controls/Interfaces/IFader.cs

@@ -2,10 +2,14 @@
 // Created: 2021-04-07
 // Copyright(c) 2021 SimonG. All Rights Reserved.
 
+using System;
+
 namespace Lib.Audio.Controls.Interfaces
 {
     public interface IFader
     {
+        float Position { get; } //TODO: float or double?
 
+        event EventHandler<float> PositionChanged;
     }
 }