form1.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 Form1
	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 Text1 As System.Windows.Forms.TextBox
	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
	Public WithEvents MMControl1 As AxMCI.AxMMControl
	Public WithEvents Label1 As System.Windows.Forms.Label
	'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()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form1))
        Me.Label1 = New System.Windows.Forms.Label()
        Me.ToolTip1 = New System.Windows.Forms.ToolTip(Me.components)
        Me.Drive1 = New Microsoft.VisualBasic.Compatibility.VB6.DriveListBox()
        Me.Dir1 = New Microsoft.VisualBasic.Compatibility.VB6.DirListBox()
        Me.MMControl1 = New AxMCI.AxMMControl()
        Me.File1 = New Microsoft.VisualBasic.Compatibility.VB6.FileListBox()
        Me.Text1 = New System.Windows.Forms.TextBox()
        CType(Me.MMControl1, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.BackColor = System.Drawing.Color.Transparent
        Me.Label1.Cursor = System.Windows.Forms.Cursors.Default
        Me.Label1.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Label1.Location = New System.Drawing.Point(317, 37)
        Me.Label1.Name = "Label1"
        Me.Label1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Label1.Size = New System.Drawing.Size(114, 38)
        Me.Label1.TabIndex = 5
        Me.Label1.Text = "文件类型"
        '
        'Drive1
        '
        Me.Drive1.BackColor = System.Drawing.SystemColors.Window
        Me.Drive1.Cursor = System.Windows.Forms.Cursors.Default
        Me.Drive1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList
        Me.Drive1.DropDownWidth = 278
        Me.Drive1.ForeColor = System.Drawing.SystemColors.WindowText
        Me.Drive1.Location = New System.Drawing.Point(20, 37)
        Me.Drive1.Name = "Drive1"
        Me.Drive1.Size = New System.Drawing.Size(278, 22)
        Me.Drive1.TabIndex = 1
        '
        'Dir1
        '
        Me.Dir1.BackColor = System.Drawing.SystemColors.Window
        Me.Dir1.Cursor = System.Windows.Forms.Cursors.Default
        Me.Dir1.ForeColor = System.Drawing.SystemColors.WindowText
        Me.Dir1.IntegralHeight = False
        Me.Dir1.Location = New System.Drawing.Point(20, 93)
        Me.Dir1.Name = "Dir1"
        Me.Dir1.Size = New System.Drawing.Size(278, 145)
        Me.Dir1.TabIndex = 2
        '
        'MMControl1
        '
        Me.MMControl1.Enabled = True
        Me.MMControl1.Location = New System.Drawing.Point(20, 250)
        Me.MMControl1.Name = "MMControl1"
        Me.MMControl1.OcxState = CType(resources.GetObject("MMControl1.OcxState"), System.Windows.Forms.AxHost.State)
        Me.MMControl1.Size = New System.Drawing.Size(555, 57)
        Me.MMControl1.TabIndex = 0
        '
        'File1
        '
        Me.File1.BackColor = System.Drawing.SystemColors.Window
        Me.File1.Cursor = System.Windows.Forms.Cursors.Default
        Me.File1.ForeColor = System.Drawing.SystemColors.WindowText
        Me.File1.ItemHeight = 12
        Me.File1.Location = New System.Drawing.Point(307, 93)
        Me.File1.Name = "File1"
        Me.File1.Pattern = "*.*"
        Me.File1.Size = New System.Drawing.Size(268, 124)
        Me.File1.TabIndex = 3
        '
        'Text1
        '
        Me.Text1.AcceptsReturn = True
        Me.Text1.AutoSize = False
        Me.Text1.BackColor = System.Drawing.SystemColors.Window
        Me.Text1.Cursor = System.Windows.Forms.Cursors.IBeam
        Me.Text1.ForeColor = System.Drawing.SystemColors.WindowText
        Me.Text1.Location = New System.Drawing.Point(440, 28)
        Me.Text1.MaxLength = 0
        Me.Text1.Name = "Text1"
        Me.Text1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Text1.Size = New System.Drawing.Size(135, 38)
        Me.Text1.TabIndex = 4
        Me.Text1.Text = "File(*.avi)"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(761, 519)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Text1, Me.File1, Me.Dir1, Me.Drive1, Me.MMControl1, Me.Label1})
        Me.Location = New System.Drawing.Point(4, 29)
        Me.Name = "Form1"
        Me.Text = "播放AVI文件"
        Me.WindowState = System.Windows.Forms.FormWindowState.Maximized
        CType(Me.MMControl1, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub
#End Region 
#Region "升级支持"
	Private Shared m_vb6FormDefInstance As Form1
	Private Shared m_InitializingDefInstance As Boolean
	Public Shared Property DefInstance() As Form1
		Get
			If m_vb6FormDefInstance Is Nothing OrElse m_vb6FormDefInstance.IsDisposed Then
				m_InitializingDefInstance = True
				m_vb6FormDefInstance = New Form1()
				m_InitializingDefInstance = False
			End If
			DefInstance = m_vb6FormDefInstance
		End Get
		Set
			m_vb6FormDefInstance = Value
		End Set
	End Property
#End Region 
	
	Private Sub Dir1_Change(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Dir1.Change
		File1.Path = Dir1.Path
		File1.FileName = "*.avi"
	End Sub
	
	Private Sub Drive1_SelectedIndexChanged(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Drive1.SelectedIndexChanged
		On Error GoTo Lable1
		Dir1.Path = Drive1.Drive
		Exit Sub
Lable1: 
		MsgBox("设备没有准备好！", MsgBoxStyle.OKOnly, "演示程序")
	End Sub
	
	Private Sub File1_SelectedIndexChanged(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles File1.SelectedIndexChanged
		MMControl1.FileName = Dir1.Path & "\" & File1.FileName
		MMControl1.Command = "open"
	End Sub
	
	Private Sub File1_DoubleClick(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles File1.DoubleClick
		MMControl1.FileName = Dir1.Path & "\" & File1.FileName
		MMControl1.Command = "open"
	End Sub
	
	Private Sub Form1_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
		MMControl1.Notify = False
		MMControl1.Wait = True
		MMControl1.Shareable = False
		MMControl1.DeviceType = "AVIVideo"
		Dir1.Path = VB6.GetPath
		File1.Path = Dir1.Path
        File1.FileName = "*.avi"
        MMControl1.Command = "Close"
	End Sub
	
	'UPGRADE_WARNING: Form 事件 Form1.Unload 具有新的行为。 单击以获得更多信息：ms-help://MS.MSDNVS/vbcon/html/vbup2065.htm
  
    Private Sub Form1_Closed(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Closed
        'MMControl1.Command = "stop"
        ' MMControl1.Command = "close"
        'Me.Close()
    End Sub

    Private Sub MMControl1_Done(ByVal eventSender As System.Object, ByVal eventArgs As AxMCI.DmciEvents_DoneEvent) Handles MMControl1.Done
        Select Case eventArgs.notifyCode
            Case 0
                MMControl1.Command = "close"
            Case 3
                MMControl1.Command = "play"
            Case Else
        End Select
    End Sub
End Class