#region Apache License
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//
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// Licensed to the Apache Software Foundation (ASF) under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership.
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// The ASF licenses this file to you under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance with
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// the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#endregion
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// MONO 1.0 has no support for Win32 OutputDebugString API
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#if !MONO
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// SSCLI 1.0 has no support for Win32 OutputDebugString API
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#if !SSCLI
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// We don't want framework or platform specific code in the CLI version of log4net
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#if !CLI_1_0
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using System.Runtime.InteropServices;
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using log4net.Layout;
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using log4net.Core;
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namespace log4net.Appender
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{
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/// <summary>
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/// Appends log events to the OutputDebugString system.
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/// </summary>
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/// <remarks>
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/// <para>
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/// OutputDebugStringAppender appends log events to the
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/// OutputDebugString system.
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/// </para>
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/// <para>
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/// The string is passed to the native <c>OutputDebugString</c>
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/// function.
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/// </para>
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/// </remarks>
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/// <author>Nicko Cadell</author>
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/// <author>Gert Driesen</author>
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public class OutputDebugStringAppender : AppenderSkeleton
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{
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#region Public Instance Constructors
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/// <summary>
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/// Initializes a new instance of the <see cref="OutputDebugStringAppender" /> class.
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/// </summary>
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/// <remarks>
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/// <para>
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/// Default constructor.
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/// </para>
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/// </remarks>
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public OutputDebugStringAppender()
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{
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}
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#endregion // Public Instance Constructors
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#region Override implementation of AppenderSkeleton
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/// <summary>
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/// Write the logging event to the output debug string API
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/// </summary>
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/// <param name="loggingEvent">the event to log</param>
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/// <remarks>
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/// <para>
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/// Write the logging event to the output debug string API
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/// </para>
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/// </remarks>
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#if NET_4_0
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[System.Security.SecuritySafeCritical]
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#elif !NETCF
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[System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, UnmanagedCode = true)]
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#endif
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override protected void Append(LoggingEvent loggingEvent)
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{
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OutputDebugString(RenderLoggingEvent(loggingEvent));
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}
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/// <summary>
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/// This appender requires a <see cref="Layout"/> to be set.
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/// </summary>
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/// <value><c>true</c></value>
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/// <remarks>
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/// <para>
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/// This appender requires a <see cref="Layout"/> to be set.
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/// </para>
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/// </remarks>
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override protected bool RequiresLayout
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{
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get { return true; }
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}
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#endregion // Override implementation of AppenderSkeleton
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#region Protected Static Methods
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/// <summary>
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/// Stub for OutputDebugString native method
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/// </summary>
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/// <param name="message">the string to output</param>
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/// <remarks>
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/// <para>
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/// Stub for OutputDebugString native method
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/// </para>
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/// </remarks>
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#if NETCF
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[DllImport("CoreDll.dll")]
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#else
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[DllImport("Kernel32.dll")]
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#endif
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protected static extern void OutputDebugString(string message);
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#endregion // Protected Static Methods
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}
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}
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#endif // !CLI_1_0
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#endif // !SSCLI
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#endif // !MONO
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