Fixed "no data" message appearing immediately

Fixed TaskCanceledException handling on shutdown

CameraStream.cs

@@ -75,6 +75,9 @@ namespace IPCamAppBar
                         await ReadFrames(responseStream, cancellationToken);
                     }
                 }
+                catch (TaskCanceledException)
+                {
+                }
                 catch (Exception e)
                 {
                     if (cancellationToken.IsCancellationRequested)

CameraView.cs

@@ -9,6 +9,7 @@ namespace IPCamAppBar
     public partial class CameraView : UserControl
     {
         private DateTime lastFrameTime;
+        private Timer noDataTimer;
 
 
         public CameraView(string url)
@@ -19,10 +20,11 @@ namespace IPCamAppBar
             cameraStream.Frame += CameraStreamOnFrame;
             cameraStream.Start(url);
 
-            var noDataTimer = new Timer();
-            noDataTimer.Interval = 1000;
+            noDataTimer = new Timer
+            {
+                Interval = 1000
+            };
             noDataTimer.Tick += CheckNoData;
-            noDataTimer.Start();
 
             Disposed += (sender, args) =>
             {
@@ -46,6 +48,7 @@ namespace IPCamAppBar
             NoDataLabel.Visible = false;
 
             lastFrameTime = DateTime.Now;
+            noDataTimer.Start();
 
             var viewImage = new Bitmap(Width, Height);
             using (var graphics = Graphics.FromImage(viewImage))

config.json

@@ -1,6 +1,6 @@
 {
   "AppBar": {
-    "Monitor": 1,
+    "Monitor": 0,
     "Side": "Top",
     "Size": 480
   },