Mercurial > silverbladetech

annotate Chronosv2/source/Extensions/Windows/ApplicationExtensions.cs @ 19:09d18d6e5f40

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airport work
author stevenh7776 stevenhollidge@hotmail.com
date Thu, 15 Mar 2012 06:59:15 +0000
parents 443821e55f06
children
rev   line source
19
09d18d6e5f40 airport work
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1 using System.Security.Permissions;
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2 using System.Windows;
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3 using System.Windows.Threading;
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4 using System.Windows.Media;
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5
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6 namespace Chronos.Extensions.Windows
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7 {
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8 /// <summary>
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9 /// Application extensions
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10 /// </summary>
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11 public static class ApplicationExtensions
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12 {
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13 #region · Extension Methods ·
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14
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15 public static RenderTier GetRenderTier(this Application application)
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16 {
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17 return (RenderTier)(RenderCapability.Tier / 0x10000);
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18 }
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19
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20 /// <summary>
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21 /// Forces the WPF message pump to process all enqueued messages
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22 /// that are above the input parameter DispatcherPriority.
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23 /// </summary>
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24 /// <param name="priority">The DispatcherPriority to use
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25 /// as the lowest level of messages to get processed</param>
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26 [SecurityPermissionAttribute(SecurityAction.Demand,
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27 Flags = SecurityPermissionFlag.UnmanagedCode)]
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28 public static void DoEvents(this Application application, DispatcherPriority priority)
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29 {
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30 DispatcherFrame frame = new DispatcherFrame();
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31 DispatcherOperation dispatcherOperation =
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32 Dispatcher.CurrentDispatcher.BeginInvoke(priority,
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33 new DispatcherOperationCallback(ExitFrameOperation), frame);
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34
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35 Dispatcher.PushFrame(frame);
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36
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37 if (dispatcherOperation.Status != DispatcherOperationStatus.Completed)
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38 {
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39 dispatcherOperation.Abort();
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40 }
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41 }
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42
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43 /// <summary>
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44 /// Forces the WPF message pump to process all enqueued messages
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45 /// that are DispatcherPriority.Background or above
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46 /// </summary>
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47 [SecurityPermissionAttribute(SecurityAction.Demand,
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48 Flags = SecurityPermissionFlag.UnmanagedCode)]
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49 public static void DoEvents(this Application application)
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50 {
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51 application.DoEvents(DispatcherPriority.Background);
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52 }
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53
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54 /// <summary>
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55 /// Stops the dispatcher from continuing
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56 /// </summary>
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57 private static object ExitFrameOperation(object obj)
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58 {
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59 ((DispatcherFrame)obj).Continue = false;
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60
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61 return null;
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62 }
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63
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64 #endregion
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65 }
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66 }