C# WindowsMediaPlayer 播放器

using System;

using System.Drawing;

using System.Globalization;

using System.IO;

using System.Text.RegularExpressions;

using System.Windows.Forms;

using Microsoft.Win32;

/* 工具箱 --> 右键单击选择项 --> COM 组件 --> Windows Media Player

   添加引用 --> COM --> Windows Media Player wmp.dll */
namespace WindowsMedia

{

    public partial class FormWMP : Form

    {

        #region

        private Timer timerInfo;

        private NotifyIcon notifyInfo;

        private ChineseLunisolarCalendar lunarCalendar;

        #endregion

        public FormWMP()

        {

            #region

            InitializeComponent();

            lunarCalendar = new ChineseLunisolarCalendar();

            this.AllowDrop = true; // 启用拖放。

            this.DesktopBounds = Screen.GetWorkingArea(this);

            using (RegistryKey userKey = Application.UserAppDataRegistry)

            {

                string dirPath = userKey.GetValue("URL") as string;

                if (Directory.Exists(dirPath))

                    Environment.CurrentDirectory = dirPath;

                LoadFiles();

            }

            TimerStyle();

            WMPlayerStyle();

            DrawListView();

            DrawComboBox();

            NotifyIconStyle();

            #endregion

        }

        #region NotifyIcon

        private void NotifyIconStyle()

        {

            notifyInfo = new NotifyIcon();

            notifyInfo.Visible = true;

            notifyInfo.Icon = Icon.ExtractAssociatedIcon(Application.ExecutablePath);

            notifyInfo.Text = AppDomain.CurrentDomain.FriendlyName;

            notifyInfo.BalloonTipClosed += new EventHandler(notifyInfo_BalloonTipClosed);

            notifyInfo.MouseClick += new MouseEventHandler(notifyInfo_MouseClick);

        }

        private void notifyInfo_MouseClick(object sender, MouseEventArgs e)

        {

            switch (e.Button)

            {

                case MouseButtons.Left:

                    if (this.Visible = !this.Visible)

                        this.Activate();

                    break;

                case MouseButtons.Right:

                    notifyInfo.ShowBalloonTip(10, notifyInfo.Text, "    在系统托盘中运行", ToolTipIcon.Info);

                    break;

            }

        }

        private void notifyInfo_BalloonTipClosed(object sender, EventArgs e)

        {

            Application.Exit();

        }

        #endregion

        #region Timer

        private void TimerStyle()

        {

            timerInfo = new Timer();

            timerInfo.Enabled = true;

            timerInfo.Interval = 1000;

            timerInfo.Tick += new EventHandler(this.timerWMP_Tick);

        }

        private void timerWMP_Tick(object sender, EventArgs e)

        {

            switch (axWMPlayer.playState)

            {

                case WMPLib.WMPPlayState.wmppsTransitioning:

                case WMPLib.WMPPlayState.wmppsPlaying:

                    if (!toolComboBoxColor.DroppedDown)

                        listViewWMP.Focus();

                    break;

                case WMPLib.WMPPlayState.wmppsReady:

                    axWMPlayer.Ctlcontrols.play();

                    break;

            }

            Application.CurrentCulture.ClearCachedData();

            DateTime solar = DateTime.Now;

            int month = lunarCalendar.GetMonth(solar);

            int leapMonth = lunarCalendar.GetLeapMonth(lunarCalendar.GetYear(solar));

            if (0 < leapMonth && leapMonth <= month)

                --month;

            statusLabelTime.Text = string.Format("{0:F} [{1} {2:00}]", solar, DateTimeFormatInfo.CurrentInfo.MonthNames[month - 1], lunarCalendar.GetDayOfMonth(solar));

        }

        #endregion

        #region WMPlayerStyle

        private void WMPlayerStyle()

        {

            axWMPlayer.enableContextMenu = true; // 启用上下文菜单。

            axWMPlayer.stretchToFit = true; // 自动缩放。

            axWMPlayer.settings.volume = 100; // 音量调最大。

            axWMPlayer.settings.setMode("loop", true); // 循环播放。

            axWMPlayer.CurrentItemChange += new AxWMPLib._WMPOCXEvents_CurrentItemChangeEventHandler(axWMPlayer_CurrentItemChange);

        }

        private void axWMPlayer_CurrentItemChange(object sender, AxWMPLib._WMPOCXEvents_CurrentItemChangeEvent e)

        {

            if (listViewWMP.Items.Count != axWMPlayer.currentPlaylist.count)

            {

                listViewWMP.Items.Clear();

                return;

            }

            for (int index = 0; index < axWMPlayer.currentPlaylist.count; ++index)

            {

                if (axWMPlayer.currentMedia.get_isIdentical(axWMPlayer.currentPlaylist.get_Item(index)))

                {

                    ListViewItem item = listViewWMP.Items[index];

                    this.Text = item.Text;

                    item.Focused = true;

                    item.EnsureVisible();

                    break;

                }

            }

        }

        private void toolButtonBalance_Click(object sender, EventArgs e)

        {

            switch ((sender as ToolStripButton).Name)

            {

                case "toolButtonLeft":

                    axWMPlayer.settings.balance = -100; // 左声道。

                    break;

                case "toolButtonStereo":

                    axWMPlayer.settings.balance = 0; // 立体声。

                    break;

                case "toolButtonRight":

                    axWMPlayer.settings.balance = 100; // 右声道。

                    break;

            }

        }

        #endregion

        #region DrawComboBox

        private void DrawComboBox()

        {

            toolComboBoxColor.BeginUpdate();

            foreach (KnownColor kc in Enum.GetValues(typeof(KnownColor)))

            {

                Color bc = Color.FromKnownColor(kc);

                if (!bc.IsSystemColor && bc != Color.Transparent)

                    toolComboBoxColor.Items.Add(bc);

            }

            toolComboBoxColor.EndUpdate();

            toolComboBoxColor.SelectedItem = Color.BlueViolet;

            toolComboBoxColor.DropDownStyle = ComboBoxStyle.DropDownList;

            toolComboBoxColor.ComboBox.DrawMode = DrawMode.OwnerDrawFixed; // 用代码绘制控件中的所有元素，并且元素大小都相等。

            toolComboBoxColor.ComboBox.DrawItem += new DrawItemEventHandler(toolComboBoxColor_DrawItem);

        }

        private void toolComboBoxColor_DrawItem(object sender, DrawItemEventArgs e)

        {

            using (Graphics g = e.Graphics)

            using (SolidBrush b = new SolidBrush(e.BackColor))

            {

                if ((e.State & DrawItemState.Selected) != 0) // 取交集。

                    b.Color = Color.BlueViolet;

                Rectangle r = e.Bounds;

                g.FillRectangle(b, r);

                r.Offset(1, 1);

                r.Width = 52;

                r.Height -= 2;

                b.Color = Color.Black;

                g.FillRectangle(b, r);

                r.Offset(1, 1);

                r.Width -= 2;

                r.Height -= 2;

                b.Color = (Color)toolComboBoxColor.Items[e.Index];

                g.FillRectangle(b, r);

                string colorName = b.Color.Name;

                b.Color = e.ForeColor;

                g.DrawString(colorName, e.Font, b, r.X + 72, r.Y);

            }

        }

        #endregion

        #region DrawListView

        private void DrawListView()

        {

            listViewWMP.GridLines = true; // 显示网格线。

            listViewWMP.OwnerDraw = true; // 代码绘制。

            listViewWMP.MultiSelect = false; // 仅选择单项。

            listViewWMP.ShowItemToolTips = true; // 显示工具提示。

            listViewWMP.Sorting = SortOrder.None; // 禁止排序。

            listViewWMP.View = View.Details; // 详细信息。

            columnHeaderWMP.Width = listViewWMP.ClientSize.Width;

            listViewWMP.DrawColumnHeader += new DrawListViewColumnHeaderEventHandler(listViewWMP_DrawColumnHeader);

            listViewWMP.DrawItem += new DrawListViewItemEventHandler(listViewWMP_DrawItem);

            listViewWMP.ClientSizeChanged += new EventHandler(listViewWMP_ClientSizeChanged);

            listViewWMP.Click += new EventHandler(listViewWMP_Click);

            listViewWMP.KeyUp += new KeyEventHandler(listViewWMP_KeyUp);

        }

        private void listViewWMP_DrawColumnHeader(object sender, DrawListViewColumnHeaderEventArgs e)

        {

            e.Graphics.FillRectangle(SystemBrushes.InactiveCaptionText, e.Bounds);

            e.DrawText(TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter);

        }

        private void listViewWMP_DrawItem(object sender, DrawListViewItemEventArgs e)

        {

            if ((e.State & ListViewItemStates.Focused) != 0)

                using (SolidBrush sb = new SolidBrush((Color)toolComboBoxColor.SelectedItem))

                {

                    e.Graphics.FillRectangle(sb, e.Bounds);

                }

            e.DrawText(TextFormatFlags.Default);

        }

        private void listViewWMP_ClientSizeChanged(object sender, EventArgs e)

        {

            columnHeaderWMP.Width = listViewWMP.ClientSize.Width;

        }

        private void listViewWMP_Click(object sender, EventArgs e)

        {

            if (listViewWMP.FocusedItem != null)

                axWMPlayer.Ctlcontrols.playItem(axWMPlayer.currentPlaylist.get_Item(listViewWMP.FocusedItem.Index));

        }

        private void listViewWMP_KeyUp(object sender, KeyEventArgs e)

        {

            if (listViewWMP.FocusedItem == null)

                return;

            switch (e.KeyData)

            {

                case Keys.Enter:

                    axWMPlayer.Ctlcontrols.playItem(axWMPlayer.currentPlaylist.get_Item(listViewWMP.FocusedItem.Index));

                    break;

                case Keys.Escape:

                    axWMPlayer.Ctlcontrols.stop();

                    break;

                case Keys.Space:

                    switch (axWMPlayer.playState)

                    {

                        case WMPLib.WMPPlayState.wmppsPlaying:

                            axWMPlayer.Ctlcontrols.pause();

                            break;

                        case WMPLib.WMPPlayState.wmppsPaused:

                            axWMPlayer.Ctlcontrols.play();

                            break;

                    }

                    break;

                case Keys.Left:

                    axWMPlayer.Ctlcontrols.previous();

                    break;

                case Keys.Right:

                    axWMPlayer.Ctlcontrols.next();

                    break;

                case Keys.Control | Keys.Left:

                    axWMPlayer.Ctlcontrols.currentPosition -= 5;

                    break;

                case Keys.Control | Keys.Right:

                    axWMPlayer.Ctlcontrols.currentPosition += 5;

                    break;

            }

        }

        #endregion

        #region LoadFiles

        private void toolButtonOpen_Click(object sender, EventArgs e)

        {

            if (folderBrowserWMP.ShowDialog(this) == DialogResult.OK)

            {

                Environment.CurrentDirectory = folderBrowserWMP.SelectedPath;

                LoadFiles();

            }

        }

        private void LoadFiles()

        {

            axWMPlayer.currentPlaylist.clear();

            listViewWMP.Items.Clear();

            listViewWMP.BeginUpdate();

            folderBrowserWMP.Description = Environment.CurrentDirectory;

            DirectoryInfo dir = new DirectoryInfo(Environment.CurrentDirectory);

            foreach (FileInfo info in dir.GetFiles())

            {

                if (Regex.IsMatch(info.Extension, @".(wma|mp3|swf|wmv|avi)", RegexOptions.IgnoreCase))

                {

                    WMPLib.IWMPMedia wmp = axWMPlayer.newMedia(info.FullName);

                    axWMPlayer.currentPlaylist.appendItem(wmp);

                    ListViewItem item = listViewWMP.Items.Add(Path.GetFileNameWithoutExtension(info.Name));

                    item.ToolTipText = string.Format("艺术家: {0}\n时长: {1}\n大小: {2:#,##0.00} MB", wmp.getItemInfo("Author"), wmp.durationString, info.Length / 1048576M);

                }

            }

            listViewWMP.EndUpdate();

        }

        protected override void OnDragEnter(DragEventArgs e)

        {

            base.OnDragEnter(e);

            DataObject data = e.Data as DataObject;

            if (data.ContainsFileDropList())

            {

                string dirPath = data.GetFileDropList()[0];

                if ((File.GetAttributes(dirPath) & FileAttributes.Directory) != 0)

                {

                    Environment.CurrentDirectory = dirPath;

                    LoadFiles();

                    this.Activate();

                }

            }

        }

        #endregion

        #region FormClosing

        protected override void OnFormClosing(FormClosingEventArgs e)

        {

            base.OnFormClosing(e);

            switch (e.CloseReason)

            {

                case CloseReason.ApplicationExitCall:

                case CloseReason.TaskManagerClosing:

                    axWMPlayer.close();

                    notifyInfo.Visible = false;

                    using (RegistryKey subKey = Application.UserAppDataRegistry)

                    {

                        subKey.SetValue("URL", Environment.CurrentDirectory);

                    }

                    break;

                case CloseReason.UserClosing:

                    this.Visible = false;

                    e.Cancel = true;

                    break;

            }

        }

        #endregion

        #region ToolStripButton

        private void toolButtonSplit_Click(object sender, EventArgs e)

        {

            splitContainerWMP.Panel1Collapsed = !splitContainerWMP.Panel1Collapsed;

        }

        private void toolButtonTopMost_Click(object sender, EventArgs e)

        {

            this.TopMost = !this.TopMost;

            toolButtonTopMost.Checked = this.TopMost;

        }

        private void toolButtonProperty_Click(object sender, EventArgs e)

        {

            if (axWMPlayer.HasPropertyPages())

                axWMPlayer.ShowPropertyPages();

        }

        private void toolButtonVideo_Click(object sender, EventArgs e)

        {

            splitContainerWMP.Panel1Collapsed = true;

            using (FormXML xml = new FormXML())

            {

                xml.Tag = axWMPlayer;

                xml.ShowDialog(this);

            }

        }

        #endregion

    }

}