2 * Copyright (c) 2017 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 namespace Tizen.Applications.Notifications
20 using System.ComponentModel;
21 using System.Runtime.InteropServices;
24 /// This class manages the notification handle resources.
26 [EditorBrowsable(EditorBrowsableState.Never)]
27 public sealed class NotificationSafeHandle : SafeHandle
30 /// Initializes a new instance of the NotificationSafeHandle class.
32 [EditorBrowsable(EditorBrowsableState.Never)]
33 public NotificationSafeHandle()
34 : base(IntPtr.Zero, true)
38 internal NotificationSafeHandle(IntPtr existingHandle, bool ownsHandle) : base(IntPtr.Zero, ownsHandle)
40 SetHandle(existingHandle);
44 /// Gets a value that indicates whether the handle is invalid.
46 [EditorBrowsable(EditorBrowsableState.Never)]
47 public override bool IsInvalid
49 get { return this.DangerousGetHandle() == IntPtr.Zero; }
53 /// Executes the code required to free the NotificationSafeHandle.
55 /// <returns></returns>
56 protected override bool ReleaseHandle()
58 Interop.Notification.Destroy(this.handle);
59 this.SetHandle(IntPtr.Zero);