ProjectArcade

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using System.Runtime.InteropServices;
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namespace DokanNet.Logging
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{
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    /// <summary>
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    /// Write log using OutputDebugString 
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    /// </summary>
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    /// <remarks>
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    /// To see the output in visual studio 
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    /// Project + %Properties, Debug tab, check "Enable unmanaged code debugging".
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    /// </remarks> 
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    public class DebugViewLogger : ILogger
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    {
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        private readonly string _loggerName;
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        /// <summary>
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        /// Initializes a new instance of the <see cref="DebugViewLogger"/> class.
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        /// </summary>
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        /// <param name="loggerName">Optional name to be added to each log line.</param>
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        public DebugViewLogger(string loggerName = "")
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        {
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            _loggerName = loggerName;
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        }
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        /// <inheritdoc />
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        public bool DebugEnabled { get { return true; } }
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        /// <inheritdoc />
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        public void Debug(string message, params object[] args)
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        {
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            WriteMessageToDebugView("debug", message, args);
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        }
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        /// <inheritdoc />
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        public void Info(string message, params object[] args)
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        {
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            WriteMessageToDebugView("info", message, args);
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        }
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        /// <inheritdoc />
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        public void Warn(string message, params object[] args)
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        {
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            WriteMessageToDebugView("warn", message, args);
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        }
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        /// <inheritdoc />
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        public void Error(string message, params object[] args)
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        {
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            WriteMessageToDebugView("error", message, args);
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        }
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        /// <inheritdoc />
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        public void Fatal(string message, params object[] args)
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        {
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            WriteMessageToDebugView("fatal", message, args);
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        }
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        [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
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        private static extern void OutputDebugString(string message);
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        private void WriteMessageToDebugView(string category, string message, params object[] args)
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        {
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            if (args != null && args.Length > 0)
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                message = string.Format(message, args);
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            OutputDebugString(message.FormatMessageForLogging(category, _loggerName));
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        }
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    }
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}