' 导入命名空间
Imports System
Imports System.Collections
Imports System.ComponentModel
Imports System.Windows.Forms
Imports System.Data
Imports System.Configuration
Imports System.Resources
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Imaging

Public Class MainClass
    Shared Sub Main()
        Dim myform As Form = New AnimationForm()
        Application.Run(myform)
    End Sub
End Class
Public Class AnimationForm
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    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

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents statusBar1 As System.Windows.Forms.StatusBar
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.statusBar1 = New System.Windows.Forms.StatusBar()
        Me.SuspendLayout()
        '
        'statusBar1
        '
        Me.statusBar1.Location = New System.Drawing.Point(0, 244)
        Me.statusBar1.Name = "statusBar1"
        Me.statusBar1.Size = New System.Drawing.Size(292, 22)
        Me.statusBar1.TabIndex = 1
        Me.statusBar1.Text = "statusBar1"
        '
        'AnimationForm
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.statusBar1})
        Me.Name = "AnimationForm"
        Me.Text = "AnimationForm"
        Me.ResumeLayout(False)

    End Sub

#End Region


    Dim gif As Bitmap = New Bitmap("nav.bmp")

    Private Sub AnimationForm_Load(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Load
        Me.SetClientSizeCore(gif.Width, gif.Height + statusBar1.Height)

        If ImageAnimator.CanAnimate(gif) Then
            ImageAnimator.Animate(gif, New EventHandler(AddressOf gif_FrameChanged))
        End If

        statusBar1.Text = gif.GetFrameCount(FrameDimension.Time) & " frames"

    End Sub

    Private Sub gif_FrameChanged(ByVal sender As Object, ByVal e As EventArgs)
        Me.Invalidate()
    End Sub

    Private Sub AnimationForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
        ImageAnimator.UpdateFrames(gif)
        Dim g As Graphics = e.Graphics
        Dim rect As Rectangle = Me.ClientRectangle
        rect.Height = rect.Height - statusBar1.Height
        g.DrawImage(gif, rect)

    End Sub
End Class