openmpx.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
Friend Class OpenMpx
	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
	'Windows 窗体设计器所必需的
	Private components As System.ComponentModel.Container
	Public ToolTip1 As System.Windows.Forms.ToolTip
	Public WithEvents Command1 As System.Windows.Forms.Button
	Public WithEvents Dk As System.Windows.Forms.Button
	Public WithEvents File1 As Microsoft.VisualBasic.Compatibility.VB6.FileListBox
	Public WithEvents Dir1 As Microsoft.VisualBasic.Compatibility.VB6.DirListBox
	Public WithEvents Drive1 As Microsoft.VisualBasic.Compatibility.VB6.DriveListBox
	'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。
	<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
		Me.components = New System.ComponentModel.Container()
		Me.ToolTip1 = New System.Windows.Forms.ToolTip(components)
		Me.ToolTip1.Active = True
		Me.Command1 = New System.Windows.Forms.Button
		Me.Dk = New System.Windows.Forms.Button
		Me.File1 = New Microsoft.VisualBasic.Compatibility.VB6.FileListBox
		Me.Dir1 = New Microsoft.VisualBasic.Compatibility.VB6.DirListBox
		Me.Drive1 = New Microsoft.VisualBasic.Compatibility.VB6.DriveListBox
		Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow
		Me.ClientSize = New System.Drawing.Size(454, 260)
		Me.Location = New System.Drawing.Point(3, 18)
		Me.MaximizeBox = False
		Me.MinimizeBox = False
		Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent
		Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
		Me.BackColor = System.Drawing.SystemColors.Control
		Me.ControlBox = True
		Me.Enabled = True
		Me.KeyPreview = False
		Me.Cursor = System.Windows.Forms.Cursors.Default
		Me.RightToLeft = System.Windows.Forms.RightToLeft.No
		Me.ShowInTaskbar = True
		Me.HelpButton = False
		Me.WindowState = System.Windows.Forms.FormWindowState.Normal
		Me.Name = "OpenMpx"
		Me.Command1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
		Me.Command1.Text = "取消"
		Me.Command1.Size = New System.Drawing.Size(76, 22)
		Me.Command1.Location = New System.Drawing.Point(369, 48)
		Me.Command1.TabIndex = 4
		Me.Command1.BackColor = System.Drawing.SystemColors.Control
		Me.Command1.CausesValidation = True
		Me.Command1.Enabled = True
		Me.Command1.Cursor = System.Windows.Forms.Cursors.Default
		Me.Command1.RightToLeft = System.Windows.Forms.RightToLeft.No
		Me.Command1.TabStop = True
		Me.Command1.Name = "Command1"
		Me.Dk.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
		Me.Dk.Text = "打开"
		Me.AcceptButton = Me.Dk
		Me.Dk.Size = New System.Drawing.Size(76, 22)
		Me.Dk.Location = New System.Drawing.Point(369, 18)
		Me.Dk.TabIndex = 3
		Me.Dk.BackColor = System.Drawing.SystemColors.Control
		Me.Dk.CausesValidation = True
		Me.Dk.Enabled = True
		Me.Dk.Cursor = System.Windows.Forms.Cursors.Default
		Me.Dk.RightToLeft = System.Windows.Forms.RightToLeft.No
		Me.Dk.TabStop = True
		Me.Dk.Name = "Dk"
		Me.File1.Size = New System.Drawing.Size(169, 246)
		Me.File1.Location = New System.Drawing.Point(189, 6)
		Me.File1.Pattern = "*.mp?"
		Me.File1.TabIndex = 2
		Me.File1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
		Me.File1.Archive = True
		Me.File1.BackColor = System.Drawing.SystemColors.Window
		Me.File1.CausesValidation = True
		Me.File1.Enabled = True
		Me.File1.ForeColor = System.Drawing.SystemColors.WindowText
		Me.File1.Hidden = False
		Me.File1.Cursor = System.Windows.Forms.Cursors.Default
		Me.File1.SelectionMode = System.Windows.Forms.SelectionMode.One
		Me.File1.Normal = True
		Me.File1.ReadOnly = True
		Me.File1.System = False
		Me.File1.TabStop = True
		Me.File1.TopIndex = 0
		Me.File1.Visible = True
		Me.File1.Name = "File1"
		Me.Dir1.Size = New System.Drawing.Size(169, 216)
		Me.Dir1.Location = New System.Drawing.Point(12, 9)
		Me.Dir1.TabIndex = 1
		Me.Dir1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
		Me.Dir1.BackColor = System.Drawing.SystemColors.Window
		Me.Dir1.CausesValidation = True
		Me.Dir1.Enabled = True
		Me.Dir1.ForeColor = System.Drawing.SystemColors.WindowText
		Me.Dir1.Cursor = System.Windows.Forms.Cursors.Default
		Me.Dir1.TabStop = True
		Me.Dir1.Visible = True
		Me.Dir1.Name = "Dir1"
		Me.Drive1.Size = New System.Drawing.Size(169, 20)
		Me.Drive1.Location = New System.Drawing.Point(12, 231)
		Me.Drive1.TabIndex = 0
		Me.Drive1.BackColor = System.Drawing.SystemColors.Window
		Me.Drive1.CausesValidation = True
		Me.Drive1.Enabled = True
		Me.Drive1.ForeColor = System.Drawing.SystemColors.WindowText
		Me.Drive1.Cursor = System.Windows.Forms.Cursors.Default
		Me.Drive1.TabStop = True
		Me.Drive1.Visible = True
		Me.Drive1.Name = "Drive1"
		Me.Controls.Add(Command1)
		Me.Controls.Add(Dk)
		Me.Controls.Add(File1)
		Me.Controls.Add(Dir1)
		Me.Controls.Add(Drive1)
	End Sub
#End Region 
#Region "升级支持"
	Private Shared m_vb6FormDefInstance As OpenMpx
	Private Shared m_InitializingDefInstance As Boolean
	Public Shared Property DefInstance() As OpenMpx
		Get
			If m_vb6FormDefInstance Is Nothing OrElse m_vb6FormDefInstance.IsDisposed Then
				m_InitializingDefInstance = True
				m_vb6FormDefInstance = New OpenMpx()
				m_InitializingDefInstance = False
			End If
			DefInstance = m_vb6FormDefInstance
		End Get
		Set
			m_vb6FormDefInstance = Value
		End Set
	End Property
#End Region 
	Dim Dropdir As String
	Private Sub Command1_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Command1.Click
		Hide()
	End Sub
	
	Private Sub Dir1_Change(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Dir1.Change
		File1.Path = Dir1.Path
	End Sub
	
	Private Sub Dk_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Dk.Click
		If Me.Text = "" Then
			GoTo Box
		Else
			Mp3ToWav.DefInstance.PlaySong.Text = Me.Text
			Mp3ToWav.DefInstance.MP.Close()
			Mp3ToWav.DefInstance.Command1(0).Enabled = True
			Mp3ToWav.DefInstance.Command1(0).PerformClick()
			Hide()
		End If
Box: 
	End Sub
	
	Private Sub Drive1_SelectedIndexChanged(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Drive1.SelectedIndexChanged
		On Error Resume Next
		Dir1.Path = Drive1.Drive
	End Sub
	
	Private Sub File1_SelectedIndexChanged(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles File1.SelectedIndexChanged
		If Mid(Dir1.Path, Len(Dir1.Path)) = "\" Then
			Dropdir = Dir1.Path
		Else
			Dropdir = Dir1.Path & "\"
		End If
		Command1.Enabled = True
		Me.Text = Dropdir & File1.FileName
	End Sub
	
	Private Sub File1_DoubleClick(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles File1.DoubleClick
		Dk_Click(Dk, New System.EventArgs())
		
	End Sub
End Class