Add notification setting values

DesktopToast/ToastManager.cs

@@ -334,6 +334,19 @@ private static async Task CheckInstallShortcut(ToastRequest request)
 		/// <returns>Result of showing a toast</returns>
 		private static async Task<ToastResult> ShowBaseAsync(XmlDocument document, string appId)
 		{
+			var notifier = ToastNotificationManager.CreateToastNotifier(appId);
+			switch (notifier.Setting)
+			{
+				case NotificationSetting.DisabledForApplication:
+					return ToastResult.DisabledForApplication;
+				case NotificationSetting.DisabledForUser:
+					return ToastResult.DisabledForUser;
+				case NotificationSetting.DisabledByGroupPolicy:
+					return ToastResult.DisabledByGroupPolicy;
+				case NotificationSetting.DisabledByManifest:
+					return ToastResult.DisabledByManifest;
+			}
+
 			// Create a toast and prepare to handle toast events.
 			var toast = new ToastNotification(document);
 			var tcs = new TaskCompletionSource<ToastResult>();
@@ -368,7 +381,7 @@ private static async Task<ToastResult> ShowBaseAsync(XmlDocument document, strin
 			toast.Failed += failed;
 
 			// Show a toast.
-			ToastNotificationManager.CreateToastNotifier(appId).Show(toast);
+			notifier.Show(toast);
 
 			// Wait for the result.
 			var result = await tcs.Task;

DesktopToast/ToastResult.cs

@@ -11,6 +11,30 @@ public enum ToastResult
 		/// </summary>
 		Unavailable = 0,
 
+		/// <summary>
+		/// The user has disabled notifications for this app.
+		/// </summary>
+		/// <remarks>This corresponds to NotificationSetting.DisabledForApplication setting.</remarks>
+		DisabledForApplication,
+
+		/// <summary>
+		/// The user or administrator has disabled all notifications for this user on this computer.
+		/// </summary>
+		/// <remarks>This corresponds to NotificationSetting.DisabledForUser setting.</remarks>
+		DisabledForUser,
+
+		/// <summary>
+		/// An administrator has disabled all notifications on this computer through group policy.
+		/// </summary>
+		/// <remarks>This corresponds to NotificationSetting.DisabledByGroupPolicy setting.</remarks>
+		DisabledByGroupPolicy,
+
+		/// <summary>
+		/// This app has not declared itself toast capable in its package.appxmanifest file.
+		/// </summary>
+		/// <remarks>This corresponds to NotificationSetting.DisabledByManifest setting.</remarks>
+		DisabledByManifest,
+
 		/// <summary>
 		/// Toast request is invalid.
 		/// </summary>