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C# MIDI Toolkit

, 18 Apr 2007
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
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using Multimedia.Midi;
using Multimedia.Midi.UI;

namespace MidiToolkitDemo
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
        private const int TrackCount = 16;

        private const int TickInterval = 24;

        private int tickCounter = 0;

        private bool updatePosition = true;

        private bool updateTempo = true;

        private TrackControl[] trackControls = new TrackControl[TrackCount];
        private System.Windows.Forms.MainMenu mainMenu1;
        private System.Windows.Forms.MenuItem fileMenuItem;
        private System.Windows.Forms.MenuItem fileOpenMenuItem;
        private System.Windows.Forms.MenuItem fileSeperator1MenuItem;
        private System.Windows.Forms.MenuItem fileExitMenuItem;
        private System.Windows.Forms.MenuItem midiMenuItem;
        private System.Windows.Forms.MenuItem midiInputDeviceMenuItem;
        private System.Windows.Forms.MenuItem midiOutputDeviceMenuItem;
        private System.Windows.Forms.MenuItem midiSeperator1MenuItem;
        private System.Windows.Forms.MenuItem midiMasterEnabledMenuItem;
        private System.Windows.Forms.MenuItem midiSlaveEnabledMenuItem;
        private System.Windows.Forms.MenuItem helpMenuItem;
        private System.Windows.Forms.MenuItem helpAboutMenuItem;
        private MidiToolkitDemo.TrackControl trackControl1;
        private MidiToolkitDemo.TrackControl trackControl2;
        private MidiToolkitDemo.TrackControl trackControl3;
        private MidiToolkitDemo.TrackControl trackControl4;
        private MidiToolkitDemo.TrackControl trackControl5;
        private MidiToolkitDemo.TrackControl trackControl6;
        private MidiToolkitDemo.TrackControl trackControl7;
        private MidiToolkitDemo.TrackControl trackControl8;
        private System.Windows.Forms.Button startButton;
        private System.Windows.Forms.Button continueButton;
        private System.Windows.Forms.Button stopButton;
        private System.Windows.Forms.HScrollBar positionHScrollBar;
        private System.Windows.Forms.Label positionLabel;
        private System.Windows.Forms.NumericUpDown tempoNumericUpDown;
        private System.Windows.Forms.Label tempoLabel;
        private System.Windows.Forms.GroupBox trackGroupBox;
        private System.Windows.Forms.GroupBox playbackGroupBox;
        private Multimedia.Midi.Sequencer sequencer1;
        private System.Windows.Forms.OpenFileDialog openFileDialog1;
        private MidiToolkitDemo.TrackControl trackControl16;
        private MidiToolkitDemo.TrackControl trackControl15;
        private MidiToolkitDemo.TrackControl trackControl14;
        private MidiToolkitDemo.TrackControl trackControl13;
        private MidiToolkitDemo.TrackControl trackControl12;
        private MidiToolkitDemo.TrackControl trackControl11;
        private MidiToolkitDemo.TrackControl trackControl10;
        private MidiToolkitDemo.TrackControl trackControl9;
        private System.ComponentModel.IContainer components;

		public Form1()
		{
            try
            {
                //
                // Required for Windows Form Designer support
                //
                InitializeComponent();


                trackControls[0] = trackControl1;
                trackControls[1] = trackControl2;
                trackControls[2] = trackControl3;
                trackControls[3] = trackControl4;
                trackControls[4] = trackControl5;
                trackControls[5] = trackControl6;
                trackControls[6] = trackControl7;
                trackControls[7] = trackControl8;
                trackControls[8] = trackControl9;
                trackControls[9] = trackControl10;
                trackControls[10] = trackControl11;
                trackControls[11] = trackControl12;
                trackControls[12] = trackControl13;
                trackControls[13] = trackControl14;
                trackControls[14] = trackControl15;
                trackControls[15] = trackControl16;

                foreach(TrackControl t in trackControls)
                {
                    t.TrackMuted += new EventHandler(OnTrackMute);
                    t.TrackSoloed += new EventHandler(OnTrackSolo);
                }

                sequencer1.AttachToTickGenerator(new EventHandler(TickHandler));
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message, "Error!", MessageBoxButtons.OK,
                    MessageBoxIcon.Stop);

                Close();
            }
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            this.components = new System.ComponentModel.Container();
            this.mainMenu1 = new System.Windows.Forms.MainMenu();
            this.fileMenuItem = new System.Windows.Forms.MenuItem();
            this.fileOpenMenuItem = new System.Windows.Forms.MenuItem();
            this.fileSeperator1MenuItem = new System.Windows.Forms.MenuItem();
            this.fileExitMenuItem = new System.Windows.Forms.MenuItem();
            this.midiMenuItem = new System.Windows.Forms.MenuItem();
            this.midiInputDeviceMenuItem = new System.Windows.Forms.MenuItem();
            this.midiOutputDeviceMenuItem = new System.Windows.Forms.MenuItem();
            this.midiSeperator1MenuItem = new System.Windows.Forms.MenuItem();
            this.midiMasterEnabledMenuItem = new System.Windows.Forms.MenuItem();
            this.midiSlaveEnabledMenuItem = new System.Windows.Forms.MenuItem();
            this.helpMenuItem = new System.Windows.Forms.MenuItem();
            this.helpAboutMenuItem = new System.Windows.Forms.MenuItem();
            this.trackControl1 = new MidiToolkitDemo.TrackControl();
            this.trackControl2 = new MidiToolkitDemo.TrackControl();
            this.trackControl3 = new MidiToolkitDemo.TrackControl();
            this.trackControl4 = new MidiToolkitDemo.TrackControl();
            this.trackControl5 = new MidiToolkitDemo.TrackControl();
            this.trackControl6 = new MidiToolkitDemo.TrackControl();
            this.trackControl7 = new MidiToolkitDemo.TrackControl();
            this.trackControl8 = new MidiToolkitDemo.TrackControl();
            this.trackControl16 = new MidiToolkitDemo.TrackControl();
            this.trackControl15 = new MidiToolkitDemo.TrackControl();
            this.trackControl14 = new MidiToolkitDemo.TrackControl();
            this.trackControl13 = new MidiToolkitDemo.TrackControl();
            this.trackControl12 = new MidiToolkitDemo.TrackControl();
            this.trackControl11 = new MidiToolkitDemo.TrackControl();
            this.trackControl10 = new MidiToolkitDemo.TrackControl();
            this.trackControl9 = new MidiToolkitDemo.TrackControl();
            this.startButton = new System.Windows.Forms.Button();
            this.continueButton = new System.Windows.Forms.Button();
            this.stopButton = new System.Windows.Forms.Button();
            this.positionHScrollBar = new System.Windows.Forms.HScrollBar();
            this.positionLabel = new System.Windows.Forms.Label();
            this.tempoNumericUpDown = new System.Windows.Forms.NumericUpDown();
            this.tempoLabel = new System.Windows.Forms.Label();
            this.trackGroupBox = new System.Windows.Forms.GroupBox();
            this.playbackGroupBox = new System.Windows.Forms.GroupBox();
            this.sequencer1 = new Multimedia.Midi.Sequencer(this.components);
            this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
            ((System.ComponentModel.ISupportInitialize)(this.tempoNumericUpDown)).BeginInit();
            this.SuspendLayout();
            // 
            // mainMenu1
            // 
            this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                                      this.fileMenuItem,
                                                                                      this.midiMenuItem,
                                                                                      this.helpMenuItem});
            // 
            // fileMenuItem
            // 
            this.fileMenuItem.Index = 0;
            this.fileMenuItem.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                                         this.fileOpenMenuItem,
                                                                                         this.fileSeperator1MenuItem,
                                                                                         this.fileExitMenuItem});
            this.fileMenuItem.Text = "&File";
            // 
            // fileOpenMenuItem
            // 
            this.fileOpenMenuItem.Index = 0;
            this.fileOpenMenuItem.Text = "&Open...";
            this.fileOpenMenuItem.Click += new System.EventHandler(this.fileOpenMenuItem_Click);
            // 
            // fileSeperator1MenuItem
            // 
            this.fileSeperator1MenuItem.Index = 1;
            this.fileSeperator1MenuItem.Text = "-";
            // 
            // fileExitMenuItem
            // 
            this.fileExitMenuItem.Index = 2;
            this.fileExitMenuItem.Text = "E&xit";
            this.fileExitMenuItem.Click += new System.EventHandler(this.fileExitMenuItem_Click);
            // 
            // midiMenuItem
            // 
            this.midiMenuItem.Index = 1;
            this.midiMenuItem.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                                         this.midiInputDeviceMenuItem,
                                                                                         this.midiOutputDeviceMenuItem,
                                                                                         this.midiSeperator1MenuItem,
                                                                                         this.midiMasterEnabledMenuItem,
                                                                                         this.midiSlaveEnabledMenuItem});
            this.midiMenuItem.Text = "&MIDI";
            // 
            // midiInputDeviceMenuItem
            // 
            this.midiInputDeviceMenuItem.Index = 0;
            this.midiInputDeviceMenuItem.Text = "&Input Device";
            this.midiInputDeviceMenuItem.Click += new System.EventHandler(this.midiInputDeviceMenuItem_Click);
            // 
            // midiOutputDeviceMenuItem
            // 
            this.midiOutputDeviceMenuItem.Index = 1;
            this.midiOutputDeviceMenuItem.Text = "&Output Device";
            this.midiOutputDeviceMenuItem.Click += new System.EventHandler(this.midiOutputDeviceMenuItem_Click);
            // 
            // midiSeperator1MenuItem
            // 
            this.midiSeperator1MenuItem.Index = 2;
            this.midiSeperator1MenuItem.Text = "-";
            // 
            // midiMasterEnabledMenuItem
            // 
            this.midiMasterEnabledMenuItem.Index = 3;
            this.midiMasterEnabledMenuItem.Text = "&Master Enabled";
            this.midiMasterEnabledMenuItem.Click += new System.EventHandler(this.midiMasterEnabledMenuItem_Click);
            // 
            // midiSlaveEnabledMenuItem
            // 
            this.midiSlaveEnabledMenuItem.Index = 4;
            this.midiSlaveEnabledMenuItem.Text = "&Slave Enabled";
            this.midiSlaveEnabledMenuItem.Click += new System.EventHandler(this.midiSlaveEnabledMenuItem_Click);
            // 
            // helpMenuItem
            // 
            this.helpMenuItem.Index = 2;
            this.helpMenuItem.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                                         this.helpAboutMenuItem});
            this.helpMenuItem.Text = "&Help";
            // 
            // helpAboutMenuItem
            // 
            this.helpAboutMenuItem.Index = 0;
            this.helpAboutMenuItem.Text = "&About...";
            this.helpAboutMenuItem.Click += new System.EventHandler(this.helpAboutMenuItem_Click);
            // 
            // trackControl1
            // 
            this.trackControl1.Enabled = false;
            this.trackControl1.Location = new System.Drawing.Point(16, 24);
            this.trackControl1.Mute = false;
            this.trackControl1.Name = "trackControl1";
            this.trackControl1.Size = new System.Drawing.Size(256, 32);
            this.trackControl1.Solo = false;
            this.trackControl1.TabIndex = 0;
            this.trackControl1.TrackName = "";
            this.trackControl1.TrackNumber = 1;
            // 
            // trackControl2
            // 
            this.trackControl2.Enabled = false;
            this.trackControl2.Location = new System.Drawing.Point(16, 56);
            this.trackControl2.Mute = false;
            this.trackControl2.Name = "trackControl2";
            this.trackControl2.Size = new System.Drawing.Size(256, 32);
            this.trackControl2.Solo = false;
            this.trackControl2.TabIndex = 1;
            this.trackControl2.TrackName = "";
            this.trackControl2.TrackNumber = 2;
            // 
            // trackControl3
            // 
            this.trackControl3.Enabled = false;
            this.trackControl3.Location = new System.Drawing.Point(16, 88);
            this.trackControl3.Mute = false;
            this.trackControl3.Name = "trackControl3";
            this.trackControl3.Size = new System.Drawing.Size(256, 32);
            this.trackControl3.Solo = false;
            this.trackControl3.TabIndex = 2;
            this.trackControl3.TrackName = "";
            this.trackControl3.TrackNumber = 3;
            // 
            // trackControl4
            // 
            this.trackControl4.Enabled = false;
            this.trackControl4.Location = new System.Drawing.Point(16, 120);
            this.trackControl4.Mute = false;
            this.trackControl4.Name = "trackControl4";
            this.trackControl4.Size = new System.Drawing.Size(256, 32);
            this.trackControl4.Solo = false;
            this.trackControl4.TabIndex = 3;
            this.trackControl4.TrackName = "";
            this.trackControl4.TrackNumber = 4;
            // 
            // trackControl5
            // 
            this.trackControl5.Enabled = false;
            this.trackControl5.Location = new System.Drawing.Point(16, 248);
            this.trackControl5.Mute = false;
            this.trackControl5.Name = "trackControl5";
            this.trackControl5.Size = new System.Drawing.Size(256, 32);
            this.trackControl5.Solo = false;
            this.trackControl5.TabIndex = 7;
            this.trackControl5.TrackName = "";
            this.trackControl5.TrackNumber = 8;
            // 
            // trackControl6
            // 
            this.trackControl6.Enabled = false;
            this.trackControl6.Location = new System.Drawing.Point(16, 216);
            this.trackControl6.Mute = false;
            this.trackControl6.Name = "trackControl6";
            this.trackControl6.Size = new System.Drawing.Size(256, 32);
            this.trackControl6.Solo = false;
            this.trackControl6.TabIndex = 6;
            this.trackControl6.TrackName = "";
            this.trackControl6.TrackNumber = 7;
            // 
            // trackControl7
            // 
            this.trackControl7.Enabled = false;
            this.trackControl7.Location = new System.Drawing.Point(16, 184);
            this.trackControl7.Mute = false;
            this.trackControl7.Name = "trackControl7";
            this.trackControl7.Size = new System.Drawing.Size(256, 32);
            this.trackControl7.Solo = false;
            this.trackControl7.TabIndex = 5;
            this.trackControl7.TrackName = "";
            this.trackControl7.TrackNumber = 6;
            // 
            // trackControl8
            // 
            this.trackControl8.Enabled = false;
            this.trackControl8.Location = new System.Drawing.Point(16, 152);
            this.trackControl8.Mute = false;
            this.trackControl8.Name = "trackControl8";
            this.trackControl8.Size = new System.Drawing.Size(256, 32);
            this.trackControl8.Solo = false;
            this.trackControl8.TabIndex = 4;
            this.trackControl8.TrackName = "";
            this.trackControl8.TrackNumber = 5;
            // 
            // trackControl16
            // 
            this.trackControl16.Enabled = false;
            this.trackControl16.Location = new System.Drawing.Point(272, 248);
            this.trackControl16.Mute = false;
            this.trackControl16.Name = "trackControl16";
            this.trackControl16.Size = new System.Drawing.Size(256, 32);
            this.trackControl16.Solo = false;
            this.trackControl16.TabIndex = 15;
            this.trackControl16.TrackName = "";
            this.trackControl16.TrackNumber = 16;
            // 
            // trackControl15
            // 
            this.trackControl15.Enabled = false;
            this.trackControl15.Location = new System.Drawing.Point(272, 216);
            this.trackControl15.Mute = false;
            this.trackControl15.Name = "trackControl15";
            this.trackControl15.Size = new System.Drawing.Size(256, 32);
            this.trackControl15.Solo = false;
            this.trackControl15.TabIndex = 14;
            this.trackControl15.TrackName = "";
            this.trackControl15.TrackNumber = 15;
            // 
            // trackControl14
            // 
            this.trackControl14.Enabled = false;
            this.trackControl14.Location = new System.Drawing.Point(272, 184);
            this.trackControl14.Mute = false;
            this.trackControl14.Name = "trackControl14";
            this.trackControl14.Size = new System.Drawing.Size(256, 32);
            this.trackControl14.Solo = false;
            this.trackControl14.TabIndex = 13;
            this.trackControl14.TrackName = "";
            this.trackControl14.TrackNumber = 14;
            // 
            // trackControl13
            // 
            this.trackControl13.Enabled = false;
            this.trackControl13.Location = new System.Drawing.Point(272, 152);
            this.trackControl13.Mute = false;
            this.trackControl13.Name = "trackControl13";
            this.trackControl13.Size = new System.Drawing.Size(256, 32);
            this.trackControl13.Solo = false;
            this.trackControl13.TabIndex = 12;
            this.trackControl13.TrackName = "";
            this.trackControl13.TrackNumber = 13;
            // 
            // trackControl12
            // 
            this.trackControl12.Enabled = false;
            this.trackControl12.Location = new System.Drawing.Point(272, 120);
            this.trackControl12.Mute = false;
            this.trackControl12.Name = "trackControl12";
            this.trackControl12.Size = new System.Drawing.Size(256, 32);
            this.trackControl12.Solo = false;
            this.trackControl12.TabIndex = 11;
            this.trackControl12.TrackName = "";
            this.trackControl12.TrackNumber = 12;
            // 
            // trackControl11
            // 
            this.trackControl11.Enabled = false;
            this.trackControl11.Location = new System.Drawing.Point(272, 88);
            this.trackControl11.Mute = false;
            this.trackControl11.Name = "trackControl11";
            this.trackControl11.Size = new System.Drawing.Size(256, 32);
            this.trackControl11.Solo = false;
            this.trackControl11.TabIndex = 10;
            this.trackControl11.TrackName = "";
            this.trackControl11.TrackNumber = 11;
            // 
            // trackControl10
            // 
            this.trackControl10.Enabled = false;
            this.trackControl10.Location = new System.Drawing.Point(272, 56);
            this.trackControl10.Mute = false;
            this.trackControl10.Name = "trackControl10";
            this.trackControl10.Size = new System.Drawing.Size(256, 32);
            this.trackControl10.Solo = false;
            this.trackControl10.TabIndex = 9;
            this.trackControl10.TrackName = "";
            this.trackControl10.TrackNumber = 10;
            // 
            // trackControl9
            // 
            this.trackControl9.Enabled = false;
            this.trackControl9.Location = new System.Drawing.Point(272, 24);
            this.trackControl9.Mute = false;
            this.trackControl9.Name = "trackControl9";
            this.trackControl9.Size = new System.Drawing.Size(256, 32);
            this.trackControl9.Solo = false;
            this.trackControl9.TabIndex = 8;
            this.trackControl9.TrackName = "";
            this.trackControl9.TrackNumber = 9;
            // 
            // startButton
            // 
            this.startButton.Location = new System.Drawing.Point(16, 328);
            this.startButton.Name = "startButton";
            this.startButton.TabIndex = 16;
            this.startButton.Text = "Start";
            this.startButton.Click += new System.EventHandler(this.startButton_Click);
            // 
            // continueButton
            // 
            this.continueButton.Location = new System.Drawing.Point(96, 328);
            this.continueButton.Name = "continueButton";
            this.continueButton.TabIndex = 17;
            this.continueButton.Text = "Continue";
            this.continueButton.Click += new System.EventHandler(this.continueButton_Click);
            // 
            // stopButton
            // 
            this.stopButton.Location = new System.Drawing.Point(176, 328);
            this.stopButton.Name = "stopButton";
            this.stopButton.TabIndex = 18;
            this.stopButton.Text = "Stop";
            this.stopButton.Click += new System.EventHandler(this.stopButton_Click);
            // 
            // positionHScrollBar
            // 
            this.positionHScrollBar.Location = new System.Drawing.Point(280, 336);
            this.positionHScrollBar.Name = "positionHScrollBar";
            this.positionHScrollBar.Size = new System.Drawing.Size(128, 16);
            this.positionHScrollBar.TabIndex = 19;
            this.positionHScrollBar.Scroll += new System.Windows.Forms.ScrollEventHandler(this.positionHScrollBar_Scroll);
            // 
            // positionLabel
            // 
            this.positionLabel.Location = new System.Drawing.Point(320, 312);
            this.positionLabel.Name = "positionLabel";
            this.positionLabel.Size = new System.Drawing.Size(48, 16);
            this.positionLabel.TabIndex = 20;
            this.positionLabel.Text = "Position";
            this.positionLabel.TextAlign = System.Drawing.ContentAlignment.BottomCenter;
            // 
            // tempoNumericUpDown
            // 
            this.tempoNumericUpDown.Location = new System.Drawing.Point(440, 328);
            this.tempoNumericUpDown.Maximum = new System.Decimal(new int[] {
                                                                               250,
                                                                               0,
                                                                               0,
                                                                               0});
            this.tempoNumericUpDown.Minimum = new System.Decimal(new int[] {
                                                                               25,
                                                                               0,
                                                                               0,
                                                                               0});
            this.tempoNumericUpDown.Name = "tempoNumericUpDown";
            this.tempoNumericUpDown.Size = new System.Drawing.Size(48, 20);
            this.tempoNumericUpDown.TabIndex = 21;
            this.tempoNumericUpDown.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
            this.tempoNumericUpDown.Value = new System.Decimal(new int[] {
                                                                             25,
                                                                             0,
                                                                             0,
                                                                             0});
            this.tempoNumericUpDown.ValueChanged += new System.EventHandler(this.tempoNumericUpDown_ValueChanged);
            // 
            // tempoLabel
            // 
            this.tempoLabel.Location = new System.Drawing.Point(440, 312);
            this.tempoLabel.Name = "tempoLabel";
            this.tempoLabel.Size = new System.Drawing.Size(40, 16);
            this.tempoLabel.TabIndex = 22;
            this.tempoLabel.Text = "Tempo";
            this.tempoLabel.TextAlign = System.Drawing.ContentAlignment.BottomCenter;
            // 
            // trackGroupBox
            // 
            this.trackGroupBox.Location = new System.Drawing.Point(8, 8);
            this.trackGroupBox.Name = "trackGroupBox";
            this.trackGroupBox.Size = new System.Drawing.Size(528, 280);
            this.trackGroupBox.TabIndex = 23;
            this.trackGroupBox.TabStop = false;
            this.trackGroupBox.Text = "Tracks";
            // 
            // playbackGroupBox
            // 
            this.playbackGroupBox.Location = new System.Drawing.Point(8, 296);
            this.playbackGroupBox.Name = "playbackGroupBox";
            this.playbackGroupBox.Size = new System.Drawing.Size(528, 64);
            this.playbackGroupBox.TabIndex = 24;
            this.playbackGroupBox.TabStop = false;
            this.playbackGroupBox.Text = "Playback";
            // 
            // sequencer1
            // 
            this.sequencer1.InputDeviceID = 0;
            this.sequencer1.MasterEnabled = false;
            this.sequencer1.OutputDeviceID = 0;
            this.sequencer1.Position = 0;
            this.sequencer1.SlaveEnabled = false;
            this.sequencer1.SongPositionPointer = 0;
            this.sequencer1.Tempo = 500000;
            this.sequencer1.TempoChanged += new System.EventHandler(this.TempoChangedHandler);
            // 
            // openFileDialog1
            // 
            this.openFileDialog1.DefaultExt = "mid";
            this.openFileDialog1.Filter = "MIDI Files|*.mid|All files|*.*";
            this.openFileDialog1.Title = "Open MIDI File";
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(544, 369);
            this.Controls.Add(this.tempoLabel);
            this.Controls.Add(this.tempoNumericUpDown);
            this.Controls.Add(this.positionLabel);
            this.Controls.Add(this.positionHScrollBar);
            this.Controls.Add(this.stopButton);
            this.Controls.Add(this.continueButton);
            this.Controls.Add(this.startButton);
            this.Controls.Add(this.trackControl16);
            this.Controls.Add(this.trackControl15);
            this.Controls.Add(this.trackControl14);
            this.Controls.Add(this.trackControl13);
            this.Controls.Add(this.trackControl12);
            this.Controls.Add(this.trackControl11);
            this.Controls.Add(this.trackControl10);
            this.Controls.Add(this.trackControl9);
            this.Controls.Add(this.trackControl5);
            this.Controls.Add(this.trackControl6);
            this.Controls.Add(this.trackControl7);
            this.Controls.Add(this.trackControl8);
            this.Controls.Add(this.trackControl4);
            this.Controls.Add(this.trackControl3);
            this.Controls.Add(this.trackControl2);
            this.Controls.Add(this.trackControl1);
            this.Controls.Add(this.trackGroupBox);
            this.Controls.Add(this.playbackGroupBox);
            this.Menu = this.mainMenu1;
            this.Name = "Form1";
            this.Text = "C# MIDI Toolkit Demo";
            ((System.ComponentModel.ISupportInitialize)(this.tempoNumericUpDown)).EndInit();
            this.ResumeLayout(false);

        }
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

        private void fileOpenMenuItem_Click(object sender, System.EventArgs e)
        {
            if(openFileDialog1.ShowDialog() == DialogResult.OK)
            { 
                try
                {
                    sequencer1.Stop();

                    MidiFileReader reader = new MidiFileReader(openFileDialog1.FileName);

                    int i;

                    for(i = 0; i < reader.Sequence.Count && 
                        i < trackControls.Length; i++)
                    {
                        trackControls[i].Mute = false;
                        trackControls[i].Solo = false;
                        trackControls[i].Enabled = true;
                        trackControls[i].TrackName = reader.Sequence[i].Name;
                    }

                    for(; i < trackControls.Length; i++)
                    {
                        trackControls[i].Mute = false;
                        trackControls[i].Solo = false;
                        trackControls[i].TrackName = string.Empty;
                        trackControls[i].Enabled = false;
                    }

                    sequencer1.Sequence = reader.Sequence;

                    positionHScrollBar.Maximum = reader.Sequence.Length;
                }
                catch(ApplicationException ex)
                {
                    MessageBox.Show(ex.Message, "Error!", MessageBoxButtons.OK,
                        MessageBoxIcon.Stop);
                }
            }
        }

        private void fileExitMenuItem_Click(object sender, System.EventArgs e)
        {
            Close();
        }

        private void midiInputDeviceMenuItem_Click(object sender, System.EventArgs e)
        {
            MidiInDeviceDialog dlg = new MidiInDeviceDialog(sequencer1.InputDeviceID);

            try
            {
                if(dlg.ShowDialog() == DialogResult.OK)
                {
                    sequencer1.InputDeviceID = dlg.SelectedDeviceID;
                }
            }
            finally
            {
                dlg.Dispose();
            }
        }

        private void midiOutputDeviceMenuItem_Click(object sender, System.EventArgs e)
        {
            MidiOutDeviceDialog dlg = new MidiOutDeviceDialog(sequencer1.OutputDeviceID);

            try
            {
                if(dlg.ShowDialog() == DialogResult.OK)
                {
                    sequencer1.OutputDeviceID = dlg.SelectedDeviceID;
                }
            }
            finally
            {
                dlg.Dispose();
            }        
        }

        private void midiMasterEnabledMenuItem_Click(object sender, System.EventArgs e)
        {
            midiMasterEnabledMenuItem.Checked = !midiMasterEnabledMenuItem.Checked;
            sequencer1.MasterEnabled = midiMasterEnabledMenuItem.Checked;
        }

        private void midiSlaveEnabledMenuItem_Click(object sender, System.EventArgs e)
        {
            midiSlaveEnabledMenuItem.Checked = !midiSlaveEnabledMenuItem.Checked;
            sequencer1.SlaveEnabled = midiSlaveEnabledMenuItem.Checked;
        }

        private void helpAboutMenuItem_Click(object sender, System.EventArgs e)
        {
            AboutDialog dlg = new AboutDialog();

            dlg.ShowDialog();

            dlg.Dispose();
        }

        private void OnTrackMute(object sender, EventArgs e)
        {
            TrackControl t = (TrackControl)sender;
            sequencer1.MuteTrack(t.TrackNumber - 1, t.Mute);
        }

        private void OnTrackSolo(object sender, EventArgs e)
        {
            TrackControl t = (TrackControl)sender;
            sequencer1.SoloTrack(t.TrackNumber - 1, t.Solo);
        }

        private void startButton_Click(object sender, System.EventArgs e)
        {
            sequencer1.Start();
        }

        private void continueButton_Click(object sender, System.EventArgs e)
        {
            sequencer1.Continue();
        }

        private void stopButton_Click(object sender, System.EventArgs e)
        {
            sequencer1.Stop();
        }

        private void positionHScrollBar_Scroll(object sender, ScrollEventArgs e)
        {
            updatePosition = false;
            
            if(e.Type == ScrollEventType.EndScroll)
            {              
                SongPositionPointer spp = new SongPositionPointer(sequencer1.Sequence.Division);
                spp.PositionInTicks = e.NewValue;
                sequencer1.SongPositionPointer = spp.SongPosition;
                updatePosition = true;
            }
        }

        private void tempoNumericUpDown_ValueChanged(object sender, System.EventArgs e)
        {
            if(updateTempo)
            {
                updateTempo = false;

                sequencer1.Tempo = 60000000 / (int)tempoNumericUpDown.Value;

                updateTempo = true;
            }
        }       

        private void TempoChangedHandler(object sender, System.EventArgs e)
        {
            if(updateTempo)
                Invoke(new EventHandler(UpdateTempo));
        }

        private void UpdateTempo(object sender, System.EventArgs e)
        {
            updateTempo = false;

            tempoNumericUpDown.Value = 60000000 / sequencer1.Tempo;

            updateTempo = true;
        }      
   
        private void TickHandler(object sender, EventArgs e)
        {
            tickCounter++;

            if(tickCounter == TickInterval)
            {
                int position = sequencer1.Position;

                if(position < positionHScrollBar.Maximum && updatePosition)
                    positionHScrollBar.Value = position;

                tickCounter = 0;
            }
        }
    }
}

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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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