diff --git a/Sources/Lib/ColorImageStream.cs b/Sources/Lib/ColorImageStream.cs
index 4de3e46..75ddd64 100644
--- a/Sources/Lib/ColorImageStream.cs
+++ b/Sources/Lib/ColorImageStream.cs
@@ -23,7 +23,7 @@ namespace Lib
             var frameDescription = KinectManager.Sensor.ColorFrameSource.CreateFrameDescription(ColorImageFormat.Bgra);
             this.Bitmap = new WriteableBitmap(frameDescription.Width, frameDescription.Height, 96.0, 96.0, PixelFormats.Bgr32, null);
             reader = KinectManager.Sensor.ColorFrameSource.OpenReader();
-            reader.FrameArrived += Reader_FrameArrived;
+            reader.FrameArrived += Reader_ColorFrameArrived;
         }
 
         public override void Stop()
@@ -33,10 +33,9 @@ namespace Lib
                 reader.Dispose();
                 reader = null;
             }
-            base.Stop();
         }
 
-        private void Reader_FrameArrived(object sender, ColorFrameArrivedEventArgs e)
+        private void Reader_ColorFrameArrived(object sender, ColorFrameArrivedEventArgs e)
         {
             using (var colorFrame = e.FrameReference.AcquireFrame())
             {
diff --git a/Sources/Lib/DepthImageStream.cs b/Sources/Lib/DepthImageStream.cs
index fde4b21..1cdafd9 100644
--- a/Sources/Lib/DepthImageStream.cs
+++ b/Sources/Lib/DepthImageStream.cs
@@ -74,7 +74,6 @@ namespace Lib
                 reader.Dispose();
                 reader = null;
             }
-            base.Stop();
         }
 
         private void ProcessDepthFrameData(ushort[] depthData, uint depthFrameDataSize, ushort minDepth, ushort maxDepth)
diff --git a/Sources/Lib/InfraredImageStream.cs b/Sources/Lib/InfraredImageStream.cs
index 51af0eb..fd0fef8 100644
--- a/Sources/Lib/InfraredImageStream.cs
+++ b/Sources/Lib/InfraredImageStream.cs
@@ -52,39 +52,6 @@ namespace Lib
                 reader.Dispose();
                 reader = null;
             }
-            base.Stop();
-        }
-
-        private void Reader_FrameArrived(object sender, ColorFrameArrivedEventArgs e)
-        {
-            using (var colorFrame = e.FrameReference.AcquireFrame())
-            {
-                if (colorFrame != null)
-                {
-                    // ... Logique existante pour traiter la frame
-                    //Debug.WriteLine("Traitement de la frame de couleur.");
-                    FrameDescription infraredFrameDescription = colorFrame.FrameDescription;
-
-                    using (KinectBuffer colorBuffer = colorFrame.LockRawImageBuffer())
-                    {
-                        this.Bitmap.Lock();
-
-                        // Vérifier si la taille de l'image a changé
-                        if ((infraredFrameDescription.Width == this.Bitmap.PixelWidth) && (infraredFrameDescription.Height == this.Bitmap.PixelHeight))
-                        {
-                            colorFrame.CopyConvertedFrameDataToIntPtr(
-                                this.Bitmap.BackBuffer,
-                                (uint)(infraredFrameDescription.Width * infraredFrameDescription.Height * 4),
-                                ColorImageFormat.Bgra);
-
-                            this.Bitmap.AddDirtyRect(new Int32Rect(0, 0, this.Bitmap.PixelWidth, this.Bitmap.PixelHeight));
-                        }
-
-                        this.Bitmap.Unlock();
-                    }
-                    //Debug.WriteLine("Frame de couleur traitée.");
-                }
-            }
         }
         private void ProcessInfraredFrameData(ushort[] frameData, uint frameDataSize)
         {
diff --git a/Sources/Lib/KinectManager.cs b/Sources/Lib/KinectManager.cs
index 3486974..1d100e9 100644
--- a/Sources/Lib/KinectManager.cs
+++ b/Sources/Lib/KinectManager.cs
@@ -46,7 +46,7 @@ namespace Lib
         }
         public void StartSensor()
         {
-            if (sensor != null) {
+            if (sensor != null && !sensor.IsOpen) {
                 sensor.Open();
             }
             else { 
diff --git a/Sources/Lib/KinectStream.cs b/Sources/Lib/KinectStream.cs
index 0240c81..048c7ab 100644
--- a/Sources/Lib/KinectStream.cs
+++ b/Sources/Lib/KinectStream.cs
@@ -47,9 +47,7 @@ namespace Lib
             KinectManager.StartSensor();
         }
 
-        public virtual void Stop()
-        {
-            KinectManager.StopSensor();
-        }
+        public abstract void Stop();
+
     }
 }
diff --git a/Sources/WpfApp/MainWindow.xaml.cs b/Sources/WpfApp/MainWindow.xaml.cs
index 9a4ba0f..56d28d8 100644
--- a/Sources/WpfApp/MainWindow.xaml.cs
+++ b/Sources/WpfApp/MainWindow.xaml.cs
@@ -2,6 +2,7 @@
 using Microsoft.Kinect;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Diagnostics;
 using System.Linq;
 using System.Text;
@@ -21,7 +22,7 @@ namespace WpfApp
     /// <summary>
     /// Logique d'interaction pour MainWindow.xaml
     /// </summary>
-    public partial class MainWindow : Window
+    public partial class MainWindow : Window,INotifyPropertyChanged
     {
         private KinectManager kinectManager;
         public KinectManager KinectManager
@@ -33,7 +34,16 @@ namespace WpfApp
         public KinectStream CurrentKinectStream
         {
             get { return _currentkinectStream; }
-            set { _currentkinectStream = value; }
+            set { 
+                _currentkinectStream = value;
+                OnPropertyChanged(nameof(_currentkinectStream));
+            }
+        }
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        public void OnPropertyChanged(string propertyName)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
         }
 
         private KinectStreamsFactory _factory;