--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Chronosv2/source/Extensions/Windows/ApplicationExtensions.cs	Tue Feb 21 17:25:44 2012 +0700
@@ -0,0 +1,90 @@
+/*
+The MIT License
+
+Copyright (c) 2009-2010. Carlos Guzmán Álvarez. http://chronoswpf.codeplex.com/
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+using System.Security.Permissions;
+using System.Windows;
+using System.Windows.Threading;
+using System.Windows.Media;
+
+namespace Chronos.Extensions.Windows
+{
+    /// <summary>
+    /// Application extensions
+    /// </summary>
+    public static class ApplicationExtensions
+    {
+        #region · Extension Methods ·
+
+        public static RenderTier GetRenderTier(this Application application)
+        {
+            return (RenderTier)(RenderCapability.Tier / 0x10000);
+        }
+
+        /// <summary>
+        /// Forces the WPF message pump to process all enqueued messages
+        /// that are above the input parameter DispatcherPriority.
+        /// </summary>
+        /// <param name="priority">The DispatcherPriority to use
+        /// as the lowest level of messages to get processed</param>
+        [SecurityPermissionAttribute(SecurityAction.Demand,
+            Flags = SecurityPermissionFlag.UnmanagedCode)]
+        public static void DoEvents(this Application application, DispatcherPriority priority)
+        {
+            DispatcherFrame frame = new DispatcherFrame();
+            DispatcherOperation dispatcherOperation =
+                Dispatcher.CurrentDispatcher.BeginInvoke(priority,
+                    new DispatcherOperationCallback(ExitFrameOperation), frame);
+
+            Dispatcher.PushFrame(frame);
+
+            if (dispatcherOperation.Status != DispatcherOperationStatus.Completed)
+            {
+                dispatcherOperation.Abort();
+            }
+        }
+
+        /// <summary>
+        /// Forces the WPF message pump to process all enqueued messages
+        /// that are DispatcherPriority.Background or above
+        /// </summary>
+        [SecurityPermissionAttribute(SecurityAction.Demand,
+            Flags = SecurityPermissionFlag.UnmanagedCode)]
+        public static void DoEvents(this Application application)
+        {
+            application.DoEvents(DispatcherPriority.Background);
+        }
+
+        /// <summary>
+        /// Stops the dispatcher from continuing
+        /// </summary>
+        private static object ExitFrameOperation(object obj)
+        {
+            ((DispatcherFrame)obj).Continue = false;
+
+            return null;
+        }
+
+        #endregion
+    }
+}