form1.vb

Source code for VB.NET book - Chapter 5

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写 dispose 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.IContainer

    '注意: 以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents OpenFileDialog1 As System.Windows.Forms.OpenFileDialog
    Friend WithEvents AxMediaPlayer1 As AxMediaPlayer.AxMediaPlayer
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Button3 As System.Windows.Forms.Button
    Friend WithEvents Button4 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form1))
        Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog
        Me.AxMediaPlayer1 = New AxMediaPlayer.AxMediaPlayer
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Button3 = New System.Windows.Forms.Button
        Me.Button4 = New System.Windows.Forms.Button
        CType(Me.AxMediaPlayer1, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'AxMediaPlayer1
        '
        Me.AxMediaPlayer1.Location = New System.Drawing.Point(88, 8)
        Me.AxMediaPlayer1.Name = "AxMediaPlayer1"
        Me.AxMediaPlayer1.OcxState = CType(resources.GetObject("AxMediaPlayer1.OcxState"), System.Windows.Forms.AxHost.State)
        Me.AxMediaPlayer1.Size = New System.Drawing.Size(88, 64)
        Me.AxMediaPlayer1.TabIndex = 0
        Me.AxMediaPlayer1.Visible = False
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(40, 80)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(56, 32)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "打  开"
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(96, 80)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(56, 32)
        Me.Button2.TabIndex = 2
        Me.Button2.Text = "播  放"
        '
        'Button3
        '
        Me.Button3.Location = New System.Drawing.Point(152, 80)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(56, 32)
        Me.Button3.TabIndex = 3
        Me.Button3.Text = "暂  停"
        '
        'Button4
        '
        Me.Button4.Location = New System.Drawing.Point(208, 80)
        Me.Button4.Name = "Button4"
        Me.Button4.Size = New System.Drawing.Size(56, 32)
        Me.Button4.TabIndex = 4
        Me.Button4.Text = "停  止"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 142)
        Me.Controls.Add(Me.Button4)
        Me.Controls.Add(Me.Button3)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.AxMediaPlayer1)
        Me.Name = "Form1"
        Me.Text = "Mp3播放器"
        CType(Me.AxMediaPlayer1, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        OpenFileDialog1.ShowDialog()
        OpenFileDialog1.Filter = "MP3 Files(*.mp3)|*.mp3|MIDI(*.mid)|*.mid|All Files(*.*)|*.*"
        OpenFileDialog1.FilterIndex = 1
        AxMediaPlayer1.Open(OpenFileDialog1.FileName)
        Button2.Enabled = True
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        AxMediaPlayer1.Play()
        Button3.Enabled = True
        Button4.Enabled = True
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        AxMediaPlayer1.Pause()
    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        AxMediaPlayer1.Stop()
        Button3.Enabled = False
    End Sub

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Button2.Enabled = False
        Button3.Enabled = False
        Button4.Enabled = False
    End Sub

End Class