一个驱动webcam的类，使用通用的摄像头驱动程序avicap32.dll

Imports System.Runtime.InteropServices

Public Class Form1
    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 picCapture As System.Windows.Forms.PictureBox
    Friend WithEvents lstDevices As System.Windows.Forms.ListBox
    Friend WithEvents lblDevice As System.Windows.Forms.Label
    Friend WithEvents btnStart As System.Windows.Forms.Button
    Friend WithEvents btnSave As System.Windows.Forms.Button
    Friend WithEvents btnStop As System.Windows.Forms.Button
    Friend WithEvents sfdImage As System.Windows.Forms.SaveFileDialog
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.picCapture = New System.Windows.Forms.PictureBox()
        Me.lstDevices = New System.Windows.Forms.ListBox()
        Me.lblDevice = New System.Windows.Forms.Label()
        Me.btnStart = New System.Windows.Forms.Button()
        Me.btnSave = New System.Windows.Forms.Button()
        Me.btnStop = New System.Windows.Forms.Button()
        Me.sfdImage = New System.Windows.Forms.SaveFileDialog()
        Me.SuspendLayout()
        '
        'picCapture
        '
        Me.picCapture.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.picCapture.Location = New System.Drawing.Point(208, 24)
        Me.picCapture.Name = "picCapture"
        Me.picCapture.Size = New System.Drawing.Size(256, 272)
        Me.picCapture.TabIndex = 0
        Me.picCapture.TabStop = False
        '
        'lstDevices
        '
        Me.lstDevices.Location = New System.Drawing.Point(8, 55)
        Me.lstDevices.Name = "lstDevices"
        Me.lstDevices.Size = New System.Drawing.Size(184, 238)
        Me.lstDevices.TabIndex = 1
        '
        'lblDevice
        '
        Me.lblDevice.Location = New System.Drawing.Point(8, 32)
        Me.lblDevice.Name = "lblDevice"
        Me.lblDevice.Size = New System.Drawing.Size(184, 16)
        Me.lblDevice.TabIndex = 2
        Me.lblDevice.Text = "Available Devices"
        Me.lblDevice.TextAlign = System.Drawing.ContentAlignment.TopCenter
        '
        'btnStart
        '
        Me.btnStart.Location = New System.Drawing.Point(20, 320)
        Me.btnStart.Name = "btnStart"
        Me.btnStart.Size = New System.Drawing.Size(112, 32)
        Me.btnStart.TabIndex = 3
        Me.btnStart.Text = "Start Preview"
        '
        'btnSave
        '
        Me.btnSave.Anchor = (System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right)
        Me.btnSave.Location = New System.Drawing.Point(348, 320)
        Me.btnSave.Name = "btnSave"
        Me.btnSave.Size = New System.Drawing.Size(112, 32)
        Me.btnSave.TabIndex = 4
        Me.btnSave.Text = "Save Image"
        '
        'btnStop
        '
        Me.btnStop.Location = New System.Drawing.Point(184, 320)
        Me.btnStop.Name = "btnStop"
        Me.btnStop.Size = New System.Drawing.Size(112, 32)
        Me.btnStop.TabIndex = 5
        Me.btnStop.Text = "Stop Preview"
        '
        'sfdImage
        '
        Me.sfdImage.FileName = "Webcam1"
        Me.sfdImage.Filter = "Bitmap

关键词：一个驱动webcam的类，运用通用的摄像头驱动程序avicap32.dll