frmplayer.vb

这是一本用Visual Studio.NET进行多媒体编程的读物

Option Strict Off
Option Explicit On
Imports VB = Microsoft.VisualBasic
Friend Class frmPlayer
	Inherits System.Windows.Forms.Form
#Region "Windows 窗体设计器生成的代码"
	Public Sub New()
		MyBase.New()
		If m_vb6FormDefInstance Is Nothing Then
			If m_InitializingDefInstance Then
				m_vb6FormDefInstance = Me
			Else
				Try 
					'对于启动窗体，所创建的第一个实例为默认实例。
					If System.Reflection.Assembly.GetExecutingAssembly.EntryPoint.DeclaringType Is Me.GetType Then
						m_vb6FormDefInstance = Me
					End If
				Catch
				End Try
			End If
		End If
		'此调用是 Windows 窗体设计器所必需的。
		InitializeComponent()
	End Sub
	'窗体重写处置，以清理组件列表。
	Protected Overloads Overrides Sub Dispose(ByVal Disposing As Boolean)
		If Disposing Then
			If Not components Is Nothing Then
				components.Dispose()
			End If
		End If
		MyBase.Dispose(Disposing)
	End Sub
    Private components As System.ComponentModel.IContainer
	'Windows 窗体设计器所必需的
		Public ToolTip1 As System.Windows.Forms.ToolTip
	Public WithEvents Timer1 As System.Windows.Forms.Timer
	Public WithEvents slVolume As AxComctlLib.AxSlider
	Public WithEvents cmdNext As System.Windows.Forms.Button
	Public WithEvents cmdBack As System.Windows.Forms.Button
	Public WithEvents cmdStop As System.Windows.Forms.Button
	Public WithEvents cmdPause As System.Windows.Forms.Button
	Public WithEvents cmdPlay As System.Windows.Forms.Button
	Public WithEvents txtSong As System.Windows.Forms.TextBox
    Public WithEvents lblHide As System.Windows.Forms.Label
    Public WithEvents Frame1 As System.Windows.Forms.GroupBox
	Public WithEvents cmdRemove As System.Windows.Forms.Button
	Public WithEvents cmdClear As System.Windows.Forms.Button
	Public WithEvents lstSelected As System.Windows.Forms.ListBox
	Public WithEvents cmdAdd As System.Windows.Forms.Button
	Public WithEvents cmdUp As System.Windows.Forms.Button
	Public WithEvents lstFiles As System.Windows.Forms.ListBox
    Public WithEvents cmbDrives As System.Windows.Forms.ComboBox
    '注意：以下过程是 Windows 窗体设计器所必需的
	'可以使用 Windows 窗体设计器来修改它。
	'不要使用代码编辑器来修改它。
    Friend WithEvents Player As AxMediaPlayer.AxMediaPlayer
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(frmPlayer))
        Me.cmdClear = New System.Windows.Forms.Button()
        Me.cmdPlay = New System.Windows.Forms.Button()
        Me.ToolTip1 = New System.Windows.Forms.ToolTip(Me.components)
        Me.lblHide = New System.Windows.Forms.Label()
        Me.txtSong = New System.Windows.Forms.TextBox()
        Me.Frame1 = New System.Windows.Forms.GroupBox()
        Me.slVolume = New AxComctlLib.AxSlider()
        Me.cmdNext = New System.Windows.Forms.Button()
        Me.cmdBack = New System.Windows.Forms.Button()
        Me.cmdStop = New System.Windows.Forms.Button()
        Me.cmdPause = New System.Windows.Forms.Button()
        Me.lstSelected = New System.Windows.Forms.ListBox()
        Me.cmbDrives = New System.Windows.Forms.ComboBox()
        Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
        Me.cmdAdd = New System.Windows.Forms.Button()
        Me.cmdRemove = New System.Windows.Forms.Button()
        Me.lstFiles = New System.Windows.Forms.ListBox()
        Me.cmdUp = New System.Windows.Forms.Button()
        Me.Player = New AxMediaPlayer.AxMediaPlayer()
        Me.Frame1.SuspendLayout()
        CType(Me.slVolume, System.ComponentModel.ISupportInitialize).BeginInit()
        CType(Me.Player, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'cmdClear
        '
        Me.cmdClear.BackColor = System.Drawing.SystemColors.Control
        Me.cmdClear.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmdClear.Location = New System.Drawing.Point(376, 395)
        Me.cmdClear.Name = "cmdClear"
        Me.cmdClear.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmdClear.Size = New System.Drawing.Size(165, 49)
        Me.cmdClear.TabIndex = 5
        Me.cmdClear.Text = "清除  ×"
        '
        'cmdPlay
        '
        Me.cmdPlay.BackColor = System.Drawing.SystemColors.Control
        Me.cmdPlay.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmdPlay.Location = New System.Drawing.Point(19, 108)
        Me.cmdPlay.Name = "cmdPlay"
        Me.cmdPlay.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmdPlay.Size = New System.Drawing.Size(101, 42)
        Me.cmdPlay.TabIndex = 9
        Me.cmdPlay.Text = "播放"
        '
        'lblHide
        '
        Me.lblHide.BackColor = System.Drawing.SystemColors.Control
        Me.lblHide.Cursor = System.Windows.Forms.Cursors.Default
        Me.lblHide.ForeColor = System.Drawing.SystemColors.ControlText
        Me.lblHide.Location = New System.Drawing.Point(797, 111)
        Me.lblHide.Name = "lblHide"
        Me.lblHide.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.lblHide.Size = New System.Drawing.Size(90, 27)
        Me.lblHide.TabIndex = 15
        Me.lblHide.Text = "展开>>"
        Me.ToolTip1.SetToolTip(Me.lblHide, "Show/Hide files")
        '
        'txtSong
        '
        Me.txtSong.AcceptsReturn = True
        Me.txtSong.AutoSize = False
        Me.txtSong.BackColor = System.Drawing.SystemColors.WindowFrame
        Me.txtSong.Cursor = System.Windows.Forms.Cursors.IBeam
        Me.txtSong.ForeColor = System.Drawing.Color.Yellow
        Me.txtSong.Location = New System.Drawing.Point(19, 47)
        Me.txtSong.MaxLength = 0
        Me.txtSong.Name = "txtSong"
        Me.txtSong.ReadOnly = True
        Me.txtSong.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.txtSong.Size = New System.Drawing.Size(627, 38)
        Me.txtSong.TabIndex = 8
        Me.txtSong.Text = ""
        '
        'Frame1
        '
        Me.Frame1.BackColor = System.Drawing.SystemColors.Control
        Me.Frame1.Controls.AddRange(New System.Windows.Forms.Control() {Me.slVolume, Me.cmdNext, Me.cmdBack, Me.cmdStop, Me.cmdPause, Me.cmdPlay, Me.txtSong, Me.lblHide})
        Me.Frame1.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Frame1.Location = New System.Drawing.Point(19, 0)
        Me.Frame1.Name = "Frame1"
        Me.Frame1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Frame1.Size = New System.Drawing.Size(928, 163)
        Me.Frame1.TabIndex = 7
        Me.Frame1.TabStop = False
        '
        'slVolume
        '
        Me.slVolume.ContainingControl = Me
        Me.slVolume.Location = New System.Drawing.Point(677, 55)
        Me.slVolume.Name = "slVolume"
        Me.slVolume.OcxState = CType(resources.GetObject("slVolume.OcxState"), System.Windows.Forms.AxHost.State)
        Me.slVolume.Size = New System.Drawing.Size(233, 42)
        Me.slVolume.TabIndex = 14
        '
        'cmdNext
        '
        Me.cmdNext.BackColor = System.Drawing.SystemColors.Control
        Me.cmdNext.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmdNext.Location = New System.Drawing.Point(617, 108)
        Me.cmdNext.Name = "cmdNext"
        Me.cmdNext.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmdNext.Size = New System.Drawing.Size(120, 42)
        Me.cmdNext.TabIndex = 13
        Me.cmdNext.Text = "后一首"
        '
        'cmdBack
        '
        Me.cmdBack.BackColor = System.Drawing.SystemColors.Control
        Me.cmdBack.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmdBack.Location = New System.Drawing.Point(467, 108)
        Me.cmdBack.Name = "cmdBack"
        Me.cmdBack.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmdBack.Size = New System.Drawing.Size(120, 42)
        Me.cmdBack.TabIndex = 12
        Me.cmdBack.Text = "前一首"
        '
        'cmdStop
        '
        Me.cmdStop.BackColor = System.Drawing.SystemColors.Control
        Me.cmdStop.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmdStop.Location = New System.Drawing.Point(286, 108)
        Me.cmdStop.Name = "cmdStop"
        Me.cmdStop.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmdStop.Size = New System.Drawing.Size(105, 42)
        Me.cmdStop.TabIndex = 11
        Me.cmdStop.Text = "停止"
        '
        'cmdPause
        '
        Me.cmdPause.BackColor = System.Drawing.SystemColors.Control
        Me.cmdPause.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmdPause.Location = New System.Drawing.Point(150, 108)
        Me.cmdPause.Name = "cmdPause"
        Me.cmdPause.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmdPause.Size = New System.Drawing.Size(105, 42)
        Me.cmdPause.TabIndex = 10
        Me.cmdPause.Text = "暂停"
        '
        'lstSelected
        '
        Me.lstSelected.BackColor = System.Drawing.SystemColors.Window
        Me.lstSelected.Cursor = System.Windows.Forms.Cursors.Default
        Me.lstSelected.ForeColor = System.Drawing.SystemColors.WindowText
        Me.lstSelected.ItemHeight = 18
        Me.lstSelected.Location = New System.Drawing.Point(556, 267)
        Me.lstSelected.Name = "lstSelected"
        Me.lstSelected.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.lstSelected.Size = New System.Drawing.Size(370, 130)
        Me.lstSelected.TabIndex = 4
        '
        'cmbDrives
        '
        Me.cmbDrives.BackColor = System.Drawing.SystemColors.Window
        Me.cmbDrives.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmbDrives.DropDownWidth = 165
        Me.cmbDrives.ForeColor = System.Drawing.SystemColors.WindowText
        Me.cmbDrives.Location = New System.Drawing.Point(19, 204)
        Me.cmbDrives.Name = "cmbDrives"
        Me.cmbDrives.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmbDrives.Size = New System.Drawing.Size(252, 26)
        Me.cmbDrives.TabIndex = 0
        '
        'Timer1
        '
        Me.Timer1.Interval = 3000
        '
        'cmdAdd
        '
        Me.cmdAdd.BackColor = System.Drawing.SystemColors.Control
        Me.cmdAdd.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmdAdd.Location = New System.Drawing.Point(376, 267)
        Me.cmdAdd.Name = "cmdAdd"
        Me.cmdAdd.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmdAdd.Size = New System.Drawing.Size(165, 50)
        Me.cmdAdd.TabIndex = 3
        Me.cmdAdd.Text = "添加  》》"
        '
        'cmdRemove
        '
        Me.cmdRemove.BackColor = System.Drawing.SystemColors.Control
        Me.cmdRemove.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmdRemove.Location = New System.Drawing.Point(376, 327)
        Me.cmdRemove.Name = "cmdRemove"
        Me.cmdRemove.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmdRemove.Size = New System.Drawing.Size(165, 49)
        Me.cmdRemove.TabIndex = 6
        Me.cmdRemove.Text = "移除《《"
        '
        'lstFiles
        '
        Me.lstFiles.BackColor = System.Drawing.SystemColors.Window
        Me.lstFiles.Cursor = System.Windows.Forms.Cursors.Default
        Me.lstFiles.ForeColor = System.Drawing.SystemColors.WindowText
        Me.lstFiles.ItemHeight = 18
        Me.lstFiles.Location = New System.Drawing.Point(19, 267)
        Me.lstFiles.Name = "lstFiles"
        Me.lstFiles.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.lstFiles.SelectionMode = System.Windows.Forms.SelectionMode.MultiExtended
        Me.lstFiles.Size = New System.Drawing.Size(341, 130)
        Me.lstFiles.TabIndex = 1
        '
        'cmdUp
        '
        Me.cmdUp.BackColor = System.Drawing.SystemColors.Control
        Me.cmdUp.Cursor = System.Windows.Forms.Cursors.Default
        Me.cmdUp.Location = New System.Drawing.Point(301, 204)
        Me.cmdUp.Name = "cmdUp"
        Me.cmdUp.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.cmdUp.Size = New System.Drawing.Size(59, 43)
        Me.cmdUp.TabIndex = 2
        Me.cmdUp.Text = "Up"
        '
        'Player
        '
        Me.Player.Location = New System.Drawing.Point(241, 517)
        Me.Player.Name = "Player"
        Me.Player.OcxState = CType(resources.GetObject("Player.OcxState"), System.Windows.Forms.AxHost.State)
        Me.Player.Size = New System.Drawing.Size(670, 479)
        Me.Player.TabIndex = 8
        '
        'frmPlayer
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(10, 21)
        Me.ClientSize = New System.Drawing.Size(961, 447)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Player, Me.Frame1, Me.cmdRemove, Me.cmdClear, Me.lstSelected, Me.cmdAdd, Me.cmdUp, Me.lstFiles, Me.cmbDrives})
        Me.Location = New System.Drawing.Point(3, 16)
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "frmPlayer"
        Me.Text = "Player"
        Me.Frame1.ResumeLayout(False)
        CType(Me.slVolume, System.ComponentModel.ISupportInitialize).EndInit()
        CType(Me.Player, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub
#End Region 
#Region "升级支持"
	Private Shared m_vb6FormDefInstance As frmPlayer
	Private Shared m_InitializingDefInstance As Boolean
	Public Shared Property DefInstance() As frmPlayer
		Get
			If m_vb6FormDefInstance Is Nothing OrElse m_vb6FormDefInstance.IsDisposed Then
				m_InitializingDefInstance = True
				m_vb6FormDefInstance = New frmPlayer()
				m_InitializingDefInstance = False
			End If
			DefInstance = m_vb6FormDefInstance
		End Get
		Set