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C# MIDI Toolkit

, 18 Apr 2007 MIT
A toolkit for creating MIDI applications with C#.
csharpmiditoolkitv4_demo.zip
CSharpMidiToolkitV4_demo
LSCollections.dll
MidiToolkitDemo
Properties
Settings.settings
MidiWatcher
Properties
Settings.settings
Multimedia.dll
Multimedia.Midi
Clocks
Device Classes
InputDevice Class
OutputDevice Classes
Messages
Message Builders
Multimedia.Midi.csproj.user
Processing
Sequencing
Midi File Player
Track Classes
UI
StateMachineToolkit.dll
csharpmiditoolkitv5_demo.zip
CSharpMidiToolkitV5_demo
MidiWatcher
Properties
Settings.settings
Sanford.Collections.dll
Sanford.Multimedia.dll
Sanford.Multimedia.Midi
Clocks
Device Classes
InputDevice Class
OutputDevice Classes
Messages
EventArgs
Message Builders
Processing
Sanford.Multimedia.Midi.csproj.user
Sequencing
Track Classes
UI
Sanford.Multimedia.Timers.dll
Sanford.Threading.dll
SequencerDemo
Properties
Settings.settings
miditoolkit_demo.zip
CSharpMidiToolkit
MidiToolkitDemo
App.ico
MidiToolkitDemo.csproj.user
Multimedia
Multimedia.csproj.user
Multimedia.Midi
Devices
Messages
Message Adaptors
MIDI File
Multimedia.MIDI.csproj.user
Sequencing
Synchronization
UI
miditoolkit_src.zip
MidiToolkit_src
Devices
Messages
MIDI File
Sequencing
TickGenerators
UI
/*
 * Created by: Leslie Sanford
 * 
 * Contact: jabberdabber@hotmail.com
 * 
 * Last modified: 10/12/2004
 */

using System;

namespace Multimedia.Midi
{
    /// <summary>
    /// Represents the method that will handle the event that occurs when a 
    /// system common message is received.
    /// </summary>
    public delegate void SysCommonEventHandler(object sender, SysCommonEventArgs e);

    #region System Common Message Types

    /// <summary>
    /// Represents the various system common message types.
    /// </summary>
    public enum SysCommonType
    {
        /// <summary>
        /// Represents the MTC system common message type.
        /// </summary>
        MidiTimeCode = 0xF1,

        /// <summary>
        /// Represents the song position pointer type.
        /// </summary>
        SongPositionPointer,

        /// <summary>
        /// Represents the song select type.
        /// </summary>
        SongSelect,

        /// <summary>
        /// Represents the tune request type.
        /// </summary>
        TuneRequest = 0xF6
    }

    #endregion

	/// <summary>
	/// Represents Midi system common messages.
	/// </summary>
	public class SysCommonMessage : ShortMessage
	{
        #region SysCommonMessage Members

        #region Fields

        // The system common type.
        private SysCommonType type;

        #endregion

        #region Construction

        /// <summary>
        /// Initializes a new instance of the SysCommonMessage class with the
        /// specified type.
        /// </summary>
        /// <param name="type">
        /// The type of system common message.
        /// </param>
		public SysCommonMessage(SysCommonType type)
		{
            Type = type;
		}

        /// <summary>
        /// Initializes a new instance of the SysCommonMessage class with the 
        /// specified type and the first data value.
        /// </summary>
        /// <param name="type">
        /// The type of system common message.
        /// </param>
        /// <param name="data1">
        /// The first data value.
        /// </param>
        public SysCommonMessage(SysCommonType type, int data1)
        {
            Type = type;
            Data1 = data1;
        }

        /// <summary>
        /// Initializes a new instance of the SysCommonMessage class with the 
        /// specified type, first data value, and second data value.
        /// </summary>
        /// <param name="type">
        /// The type of system common message.
        /// </param>
        /// <param name="data1">
        /// The first data value.
        /// </param>
        /// <param name="data2">
        /// The second data value.
        /// </param>
        public SysCommonMessage(SysCommonType type, int data1, int data2)
        {
            Type = type;
            Data1 = data1;
            Data2 = data2;
        }

        /// <summary>
        /// Initializes a new instance of the SysCommonMessage class with a
        /// system common message packed as an integer.
        /// </summary>
        /// <param name="message">
        /// The packed system common message to use for initialization.
        /// </param>
        public SysCommonMessage(int message)
        {
            int status = ShortMessage.UnpackStatus(message);

            // Enforce preconditions.
            if(!SysCommonMessage.IsSysCommonMessage(status))
                throw new ArgumentException(
                    "Message is not a system common message.", "message");

            //
            // Initialize properties.
            //

            Type = (SysCommonType)ShortMessage.UnpackStatus(message);
            Data1 = ShortMessage.UnpackData1(message);
            Data2 = ShortMessage.UnpackData2(message);
        }

        /// <summary>
        /// Initializes a new instance of the SysCommonMessage class with 
        /// another instance of the SysCommonMessage class.
        /// </summary>
        /// <param name="message">
        /// The SysCommonMessage instance to use for initialization.
        /// </param>
        public SysCommonMessage(SysCommonMessage message)
        {
            Type = message.Type;
            Data1 = message.Data1;
            Data2 = message.Data2;
        }

        #endregion

        #region Methods

        /// <summary>
        /// Accepts a MIDI message visitor.
        /// </summary>
        /// <param name="visitor">
        /// The visitor to accept.
        /// </param>
        public override void Accept(MidiMessageVisitor visitor)
        {
            visitor.Visit(this);
        }

        /// <summary>
        /// Creates a deep copy of this message.
        /// </summary>
        /// <returns>
        /// A deep copy of this message.
        /// </returns>
        public override object Clone()
        {
            return new SysCommonMessage(this);
        }

        /// <summary>
        /// Tests to see if a status value belongs to a system common message.
        /// </summary>
        /// <param name="status">
        /// The status value to test.
        /// </param>
        /// <returns>
        /// <b>true</b> if the status value belongs to a system common message; 
        /// otherwise, <b>false</b>.
        /// </returns>
        public static bool IsSysCommonMessage(int status)
        {
            if((status >= (int)SysCommonType.MidiTimeCode && 
                status <= (int)SysCommonType.SongSelect) ||
                status == (int)SysCommonType.TuneRequest)
                return true;

            return false;
        }

        #endregion

        #region Properties

        /// <summary>
        /// Gets or sets the system common type.
        /// </summary>
        public SysCommonType Type
        {
            get
            {
                return type;
            }
            set
            {
                type = value;
                SetStatus((int)type);
            }
        }

        /// <summary>
        /// Gets or sets the first data value.
        /// </summary>
        public int Data1
        {
            get
            {
                return GetData1();
            }
            set
            {
                SetData1(value);
            }
        }

        /// <summary>
        /// Gets or sets the second data value.
        /// </summary>
        public int Data2
        {
            get
            {
                return GetData2();
            }
            set
            {
                SetData2(value);
            }
        }

        #endregion        

        #endregion
    }

    /// <summary>
    /// Represents data for SysCommonEvent events.
    /// </summary>
    public class SysCommonEventArgs : EventArgs
    {
        #region SysCommonEventArgs Members

        #region Fields

        // The SysCommonMessage for this event.
        private SysCommonMessage message;

        // Time in milliseconds since the input device began recording.
        private int timeStamp;        

        #endregion

        #region Construction

        /// <summary>
        /// Initializes a new instance of the SysCommonEventArgs class with the
        /// specified SysCommonMessage and time stamp.
        /// </summary>
        /// <param name="message">
        /// The SysCommonMessage for this event.
        /// </param>
        /// <param name="timeStamp">
        /// The time in milliseconds since the input device began recording.
        /// </param>
        public SysCommonEventArgs(SysCommonMessage message, int timeStamp)
        {
            this.message = message;
            this.timeStamp = timeStamp;
        }

        #endregion

        #region Properties

        /// <summary>
        /// Gets the SysCommonMessage for this event.
        /// </summary>
        public SysCommonMessage Message
        {
            get
            {
                return message;
            }
        }

        /// <summary>
        /// Gets the time in milliseconds since the input device began 
        /// recording.
        /// </summary>
        public int TimeStamp
        {
            get
            {
                return timeStamp;
            }
        }

        #endregion

        #endregion
    }
}

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This article, along with any associated source code and files, is licensed under The MIT License

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About the Author

Leslie Sanford

United States United States
Aside from dabbling in BASIC on his old Atari 1040ST years ago, Leslie's programming experience didn't really begin until he discovered the Internet in the late 90s. There he found a treasure trove of information about two of his favorite interests: MIDI and sound synthesis.
 
After spending a good deal of time calculating formulas he found on the Internet for creating new sounds by hand, he decided that an easier way would be to program the computer to do the work for him. This led him to learn C. He discovered that beyond using programming as a tool for synthesizing sound, he loved programming in and of itself.
 
Eventually he taught himself C++ and C#, and along the way he immersed himself in the ideas of object oriented programming. Like many of us, he gotten bitten by the design patterns bug and a copy of GOF is never far from his hands.
 
Now his primary interest is in creating a complete MIDI toolkit using the C# language. He hopes to create something that will become an indispensable tool for those wanting to write MIDI applications for the .NET framework.
 
Besides programming, his other interests are photography and playing his Les Paul guitars.

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