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comparison Chronosv2/source/Extensions/Windows/ApplicationExtensions.cs @ 10:443821e55f06

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Initial cleaned up add from Codeplex files
author stevenh7776 stevenhollidge@hotmail.com
date Tue, 21 Feb 2012 17:25:44 +0700
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children 09d18d6e5f40
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9:904a9faadf8b 10:443821e55f06
1 /*
2 The MIT License
3
4 Copyright (c) 2009-2010. Carlos Guzmán Álvarez. http://chronoswpf.codeplex.com/
5
6 Permission is hereby granted, free of charge, to any person obtaining a copy
7 of this software and associated documentation files (the "Software"), to deal
8 in the Software without restriction, including without limitation the rights
9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 copies of the Software, and to permit persons to whom the Software is
11 furnished to do so, subject to the following conditions:
12
13 The above copyright notice and this permission notice shall be included in
14 all copies or substantial portions of the Software.
15
16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 THE SOFTWARE.
23 */
24
25 using System.Security.Permissions;
26 using System.Windows;
27 using System.Windows.Threading;
28 using System.Windows.Media;
29
30 namespace Chronos.Extensions.Windows
31 {
32 /// <summary>
33 /// Application extensions
34 /// </summary>
35 public static class ApplicationExtensions
36 {
37 #region · Extension Methods ·
38
39 public static RenderTier GetRenderTier(this Application application)
40 {
41 return (RenderTier)(RenderCapability.Tier / 0x10000);
42 }
43
44 /// <summary>
45 /// Forces the WPF message pump to process all enqueued messages
46 /// that are above the input parameter DispatcherPriority.
47 /// </summary>
48 /// <param name="priority">The DispatcherPriority to use
49 /// as the lowest level of messages to get processed</param>
50 [SecurityPermissionAttribute(SecurityAction.Demand,
51 Flags = SecurityPermissionFlag.UnmanagedCode)]
52 public static void DoEvents(this Application application, DispatcherPriority priority)
53 {
54 DispatcherFrame frame = new DispatcherFrame();
55 DispatcherOperation dispatcherOperation =
56 Dispatcher.CurrentDispatcher.BeginInvoke(priority,
57 new DispatcherOperationCallback(ExitFrameOperation), frame);
58
59 Dispatcher.PushFrame(frame);
60
61 if (dispatcherOperation.Status != DispatcherOperationStatus.Completed)
62 {
63 dispatcherOperation.Abort();
64 }
65 }
66
67 /// <summary>
68 /// Forces the WPF message pump to process all enqueued messages
69 /// that are DispatcherPriority.Background or above
70 /// </summary>
71 [SecurityPermissionAttribute(SecurityAction.Demand,
72 Flags = SecurityPermissionFlag.UnmanagedCode)]
73 public static void DoEvents(this Application application)
74 {
75 application.DoEvents(DispatcherPriority.Background);
76 }
77
78 /// <summary>
79 /// Stops the dispatcher from continuing
80 /// </summary>
81 private static object ExitFrameOperation(object obj)
82 {
83 ((DispatcherFrame)obj).Continue = false;
84
85 return null;
86 }
87
88 #endregion
89 }
90 }