Imports System.Drawing
Imports System.Drawing.Image

'--------------Imports System.Threading-----------------------------------

'--------Code By Ken Tucker-------------

'-------------------------------------------------

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 PicB1 As System.Windows.Forms.PictureBox
Friend WithEvents Timer1 As System.Windows.Forms.Timer
Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
Friend WithEvents TrackBar1 As System.Windows.Forms.TrackBar
Friend WithEvents TrackBar2 As System.Windows.Forms.TrackBar
Friend WithEvents TrackBar4 As System.Windows.Forms.TrackBar
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents Label2 As System.Windows.Forms.Label
Friend WithEvents Label3 As System.Windows.Forms.Label
Friend WithEvents Label4 As System.Windows.Forms.Label
Friend WithEvents GroupBox2 As System.Windows.Forms.GroupBox
Friend WithEvents GroupBox3 As System.Windows.Forms.GroupBox
Public WithEvents TrackBar3 As System.Windows.Forms.TrackBar
<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.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.PicB1 = New System.Windows.Forms.PictureBox
Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
Me.GroupBox1 = New System.Windows.Forms.GroupBox
Me.TrackBar2 = New System.Windows.Forms.TrackBar
Me.TrackBar1 = New System.Windows.Forms.TrackBar
Me.TrackBar3 = New System.Windows.Forms.TrackBar
Me.Label4 = New System.Windows.Forms.Label
Me.Label3 = New System.Windows.Forms.Label
Me.Label2 = New System.Windows.Forms.Label
Me.Label1 = New System.Windows.Forms.Label
Me.TrackBar4 = New System.Windows.Forms.TrackBar
Me.GroupBox2 = New System.Windows.Forms.GroupBox
Me.GroupBox3 = New System.Windows.Forms.GroupBox
Me.GroupBox1.SuspendLayout()
CType(Me.TrackBar2,System.ComponentModel.ISupportInitialize).BeginInit()
CType(Me.TrackBar1,System.ComponentModel.ISupportInitialize).BeginInit()
CType(Me.TrackBar3,System.ComponentModel.ISupportInitialize).BeginInit()
CType(Me.TrackBar4,System.ComponentModel.ISupportInitialize).BeginInit()
Me.GroupBox2.SuspendLayout()
Me.GroupBox3.SuspendLayout()
Me.SuspendLayout()
'
'picCapture
'
Me.picCapture.BackColor = System.Drawing.Color.FromArgb(CType(255,Byte),CType(128,CType(0,Byte))
Me.picCapture.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
Me.picCapture.Location = New System.Drawing.Point(16,16)
Me.picCapture.Name = "picCapture"
Me.picCapture.Size = New System.Drawing.Size(16,16)
Me.picCapture.TabIndex = 0
Me.picCapture.TabStop = False
'
'lstDevices
'
Me.lstDevices.BackColor = System.Drawing.SystemColors.InactiveCaptionText
Me.lstDevices.ItemHeight = 12
Me.lstDevices.Location = New System.Drawing.Point(8,40)
Me.lstDevices.Name = "lstDevices"
Me.lstDevices.Size = New System.Drawing.Size(152,28)
Me.lstDevices.TabIndex = 1
'
'lblDevice
'
Me.lblDevice.Location = New System.Drawing.Point(16,16)
Me.lblDevice.Name = "lblDevice"
Me.lblDevice.Size = New System.Drawing.Size(80,18)
Me.lblDevice.TabIndex = 2
Me.lblDevice.Text = "选择视频设备"
Me.lblDevice.TextAlign = System.Drawing.ContentAlignment.TopCenter
'
'btnStart
'
Me.btnStart.Location = New System.Drawing.Point(48,16)
Me.btnStart.Name = "btnStart"
Me.btnStart.Size = New System.Drawing.Size(96,24)
Me.btnStart.TabIndex = 3
Me.btnStart.Text = "开始采集图像"
'
'btnSave
'
Me.btnSave.Anchor = CType((System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right),System.Windows.Forms.AnchorStyles)
Me.btnSave.Location = New System.Drawing.Point(48,88)
Me.btnSave.Name = "btnSave"
Me.btnSave.Size = New System.Drawing.Size(96,24)
Me.btnSave.TabIndex = 4
Me.btnSave.Text = "保存图像"
'
'btnStop
'
Me.btnStop.Location = New System.Drawing.Point(48,48)
Me.btnStop.Name = "btnStop"
Me.btnStop.Size = New System.Drawing.Size(96,24)
Me.btnStop.TabIndex = 5
Me.btnStop.Text = "停止采集图像"
'
'PicB1
'
Me.PicB1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
Me.PicB1.Location = New System.Drawing.Point(200,16)
Me.PicB1.Name = "PicB1"
Me.PicB1.Size = New System.Drawing.Size(224,200)
Me.PicB1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage
Me.PicB1.TabIndex = 6
Me.PicB1.TabStop = False
'
'Timer1
'
Me.Timer1.Enabled = True
Me.Timer1.Interval = 125
'
'GroupBox1
'
Me.GroupBox1.Controls.Add(Me.TrackBar2)
Me.GroupBox1.Controls.Add(Me.TrackBar1)
Me.GroupBox1.Controls.Add(Me.TrackBar3)
Me.GroupBox1.Controls.Add(Me.Label4)
Me.GroupBox1.Controls.Add(Me.Label3)
Me.GroupBox1.Controls.Add(Me.Label2)
Me.GroupBox1.Controls.Add(Me.Label1)
Me.GroupBox1.Controls.Add(Me.TrackBar4)
Me.GroupBox1.ForeColor = System.Drawing.SystemColors.Desktop
Me.GroupBox1.Location = New System.Drawing.Point(16,216)
Me.GroupBox1.Name = "GroupBox1"
Me.GroupBox1.Size = New System.Drawing.Size(408,112)
Me.GroupBox1.TabIndex = 11
Me.GroupBox1.TabStop = False
'
'TrackBar2
'
Me.TrackBar2.LargeChange = 2
Me.TrackBar2.Location = New System.Drawing.Point(48,64)
Me.TrackBar2.Maximum = 50
Me.TrackBar2.Minimum = -50
Me.TrackBar2.Name = "TrackBar2"
Me.TrackBar2.Size = New System.Drawing.Size(144,45)
Me.TrackBar2.TabIndex = 1
Me.TrackBar2.TickFrequency = 0
Me.TrackBar2.TickStyle = System.Windows.Forms.TickStyle.None
'
'TrackBar1
'
Me.TrackBar1.BackColor = System.Drawing.SystemColors.Control
Me.TrackBar1.Cursor = System.Windows.Forms.Cursors.Hand
Me.TrackBar1.LargeChange = 2
Me.TrackBar1.Location = New System.Drawing.Point(48,24)
Me.TrackBar1.Maximum = 50
Me.TrackBar1.Minimum = -50
Me.TrackBar1.Name = "TrackBar1"
Me.TrackBar1.RightToLeft = System.Windows.Forms.RightToLeft.Yes
Me.TrackBar1.Size = New System.Drawing.Size(144,45)
Me.TrackBar1.SmallChange = 5
Me.TrackBar1.TabIndex = 0
Me.TrackBar1.TickFrequency = 0
Me.TrackBar1.TickStyle = System.Windows.Forms.TickStyle.None
'
'TrackBar3
'
Me.TrackBar3.Location = New System.Drawing.Point(256,64)
Me.TrackBar3.Maximum = 50
Me.TrackBar3.Minimum = -50
Me.TrackBar3.Name = "TrackBar3"
Me.TrackBar3.Size = New System.Drawing.Size(144,45)
Me.TrackBar3.TabIndex = 3
Me.TrackBar3.TickFrequency = 0
Me.TrackBar3.TickStyle = System.Windows.Forms.TickStyle.None
'
'Label4
'
Me.Label4.Location = New System.Drawing.Point(216,64)
Me.Label4.Name = "Label4"
Me.Label4.Size = New System.Drawing.Size(40,23)
Me.Label4.TabIndex = 7
Me.Label4.Text = "亮度"
'
'Label3
'
Me.Label3.Location = New System.Drawing.Point(216,24)
Me.Label3.Name = "Label3"
Me.Label3.Size = New System.Drawing.Size(24,23)
Me.Label3.TabIndex = 6
Me.Label3.Text = "蓝"
'
'Label2
'
Me.Label2.Location = New System.Drawing.Point(16,64)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(32,23)
Me.Label2.TabIndex = 5
Me.Label2.Text = "绿"
'
'Label1
'
Me.Label1.Location = New System.Drawing.Point(16,24)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(16,23)
Me.Label1.TabIndex = 4
Me.Label1.Text = "红"
'
'TrackBar4
'
Me.TrackBar4.BackColor = System.Drawing.SystemColors.Control
Me.TrackBar4.Cursor = System.Windows.Forms.Cursors.Hand
Me.TrackBar4.LargeChange = 2
Me.TrackBar4.Location = New System.Drawing.Point(256,24)
Me.TrackBar4.Maximum = 50
Me.TrackBar4.Minimum = -50
Me.TrackBar4.Name = "TrackBar4"
Me.TrackBar4.Size = New System.Drawing.Size(144,45)
Me.TrackBar4.SmallChange = 2
Me.TrackBar4.TabIndex = 2
Me.TrackBar4.TickFrequency = 0
Me.TrackBar4.TickStyle = System.Windows.Forms.TickStyle.None
'
'GroupBox2
'
Me.GroupBox2.Controls.Add(Me.btnStart)
Me.GroupBox2.Controls.Add(Me.btnStop)
Me.GroupBox2.Controls.Add(Me.btnSave)
Me.GroupBox2.Controls.Add(Me.picCapture)
Me.GroupBox2.ForeColor = System.Drawing.SystemColors.Desktop
Me.GroupBox2.Location = New System.Drawing.Point(16,88)
Me.GroupBox2.Name = "GroupBox2"
Me.GroupBox2.Size = New System.Drawing.Size(168,128)
Me.GroupBox2.TabIndex = 12
Me.GroupBox2.TabStop = False
'
'GroupBox3
'
Me.GroupBox3.Controls.Add(Me.lblDevice)
Me.GroupBox3.Controls.Add(Me.lstDevices)
Me.GroupBox3.ForeColor = System.Drawing.SystemColors.Desktop
Me.GroupBox3.Location = New System.Drawing.Point(16,8)
Me.GroupBox3.Name = "GroupBox3"
Me.GroupBox3.Size = New System.Drawing.Size(168,80)
Me.GroupBox3.TabIndex = 13
Me.GroupBox3.TabStop = False
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(6,14)
Me.ClientSize = New System.Drawing.Size(432,358)
Me.Controls.Add(Me.GroupBox3)
Me.Controls.Add(Me.GroupBox2)
Me.Controls.Add(Me.PicB1)
Me.Controls.Add(Me.GroupBox1)
Me.Icon = CType(resources.GetObject("$this.Icon"),System.Drawing.Icon)
Me.Name = "Form1"
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
Me.Text = "照相采集程序"
Me.GroupBox1.ResumeLayout(False)
CType(Me.TrackBar2,System.ComponentModel.ISupportInitialize).EndInit()
CType(Me.TrackBar1,System.ComponentModel.ISupportInitialize).EndInit()
CType(Me.TrackBar3,System.ComponentModel.ISupportInitialize).EndInit()
CType(Me.TrackBar4,System.ComponentModel.ISupportInitialize).EndInit()
Me.GroupBox2.ResumeLayout(False)
Me.GroupBox3.ResumeLayout(False)
Me.ResumeLayout(False)

End Sub

#End Region

Const WM_CAP As Short = &H400S

Const WM_CAP_DRIVER_CONNECT As Integer = WM_CAP + 10
Const WM_CAP_DRIVER_DISCONNECT As Integer = WM_CAP + 11
Const WM_CAP_EDIT_COPY As Integer = WM_CAP + 30

Const WM_CAP_SET_PREVIEW As Integer = WM_CAP + 100
Const WM_CAP_SET_PREVIEWRATE As Integer = WM_CAP + 52
Const WM_CAP_SET_SCALE As Integer = WM_CAP + 53
Const WS_CHILD As Integer = &H40000000
Const WS_VISIBLE As Integer = &H10000000
Const SWP_NOMOVE As Short = &H2S
Const SWP_NOSIZE As Short = 1
Const SWP_NOZORDER As Short = &H4S
Const HWND_BOTTOM As Short = 1

Const TV_FIRST = &H1100
Const TVM_SETBKCOLOR = TV_FIRST + 29

Dim iDevice As Integer = 0 ' Current device ID
Dim hHwnd As Integer ' Handle to preview window

Declare Function SendMessage Lib "user32" Alias "SendMessageA" _
(ByVal hwnd As Integer,ByVal wMsg As Integer,ByVal wParam As Integer,_
ByVal lParam As Object) As Integer

Declare Function SetWindowPos Lib "user32" Alias "SetWindowPos" (ByVal hwnd As Integer,_
ByVal hWndInsertAfter As Integer,ByVal x As Integer,ByVal y As Integer,_
ByVal cx As Integer,ByVal cy As Integer,ByVal wFlags As Integer) As Integer

Declare Function DestroyWindow Lib "user32" (ByVal hndw As Integer) As Boolean

Declare Function capCreateCaptureWindowA Lib "avicap32.dll" _
(ByVal lpszWindowName As String,ByVal dwStyle As Integer,_
ByVal x As Integer,ByVal nWidth As Integer,_
ByVal nHeight As Short,ByVal hWndParent As Integer,_
ByVal nID As Integer) As Integer

Declare Function capGetDriverDescriptionA Lib "avicap32.dll" (ByVal wDriver As Short,_
ByVal lpszName As String,ByVal cbName As Integer,ByVal lpszVer As String,_
ByVal cbVer As Integer) As Boolean
Declare Function CreateCompatibleDC Lib "gdi32" Alias "CreateCompatibleDC" (ByVal hdc As Long) As Long
Declare Function CreateCompatibleBitmap Lib "gdi32" Alias "CreateCompatibleBitmap" (ByVal hdc As Long,ByVal nWidth As Long,ByVal nHeight As Long) As Long

' Declare Function GetPixel Lib "gdi32" Alias "GetPixel" (ByVal hdc As Integer,ByVal y As Integer) As Long
'Declare Function SetPixel Lib "gdi32" Alias "SetPixel" (ByVal hdc As Integer,ByVal y As Integer) As Long
'变量声明
Private i,j,x,y As Integer
Private rgbpoint(1024,784) As rgbp
Private bmap As Image
Private data As IDataObject
Private R,G,B,APL As Integer

Public Structure rgbp
Dim r As Integer
Dim g As Integer
Dim b As Integer
End Structure

Private Sub CopyClipboard()

' Copy image to clipboard
'
SendMessage(hHwnd,WM_CAP_EDIT_COPY,0)
' Get image from clipboard and convert it to a bitmap hHwnd
'
data = Clipboard.GetDataObject()
If data.GetDataPresent(GetType(System.Drawing.Bitmap)) Then
bmap = CType(data.GetData(GetType(System.Drawing.Bitmap)),Image)
'picCapture.Image = bmap
End If

End Sub
Private Sub savefile() '保存文件
Dim savedia As SaveFileDialog

Dim savebitmap As Bitmap
If bmap Is Nothing Then
MsgBox("保存失败",MsgBoxStyle.OKOnly)
Exit Sub
End If
savedia = New SaveFileDialog
savedia.Filter = "jpg文件|*.jpg|bmp文件|*.bmp"
savedia.ShowDialog()
'显示“保存”对话框
Dim tempfile = savedia.FileName
savebitmap = bmap
If savedia.ShowDialog() = DialogResult.OK Then
If savedia.FilterIndex = 1 Then
savebitmap.Save(tempfile,Imaging.ImageFormat.Jpeg)
End If
If savedia.FilterIndex = 2 Then
savebitmap.Save(tempfile,Imaging.ImageFormat.Bmp)
End If
End If
End Sub

Private Sub getrgbp()
Dim tempcolor As Color
Dim tempbitmap As Bitmap = bmap.Clone()
x = tempbitmap.Width
y = tempbitmap.Height

For i = 0 To x - 1 Step 1
For j = 0 To y - 1 Step 1
tempcolor = tempbitmap.GetPixel(i,j)
rgbpoint(i,j).r = tempcolor.R
rgbpoint(i,j).g = tempcolor.G
rgbpoint(i,j).b = tempcolor.B
Next
Next
End Sub

Private Sub Form1_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load
LoadDeviceList()
If lstDevices.Items.Count > 0 Then
btnStart.Enabled = True
lstDevices.SelectedIndex = 0
btnStart.Enabled = True
Else
lstDevices.Items.Add("无视频设备")
btnStart.Enabled = False
End If
RGBA()
Me.Timer1.Stop()
btnStop.Enabled = False
btnSave.Enabled = False
picCapture.SizeMode = PictureBoxSizeMode.StretchImage

End Sub

Private Sub LoadDeviceList()
Dim strName As String = Space(100)
Dim strVer As String = Space(100)
Dim bReturn As Boolean
Dim x As Integer = 0

'
' Load name of all avialable devices into the lstDevices
'

Do
'
' Get Driver name and version
'
bReturn = capGetDriverDescriptionA(x,strName,100,strVer,100)

''连接

' If there was a device add device name to the list
'
If bReturn Then lstDevices.Items.Add(strName.Trim)
x += 1
Loop Until bReturn = False
End Sub

Private Sub OpenPreviewWindow()
Dim iHeight As Integer = picCapture.Height
Dim iWidth As Integer = picCapture.Width

' Open Preview window in pictureBox
'建立采集窗口（不显示窗口，处理后显示到PIC控件）

'创建一个与特定设备场景一致的内存设备场景

hHwnd = capCreateCaptureWindowA(iDevice,WS_VISIBLE Or WS_CHILD,240,_
320,picCapture.Handle.ToInt32,0)

'连接
' Connect to device
'
If SendMessage(hHwnd,WM_CAP_DRIVER_CONNECT,iDevice,0) Then
'
'Set the preview scale
'
SendMessage(hHwnd,WM_CAP_SET_SCALE,True,0) '允许或禁止preview视频的缩放比例.
'Scale开
Call SendMessage(hHwnd,TVM_SETBKCOLOR,RGB(0,0))
'
'Set the preview rate in milliseconds
'
SendMessage(hHwnd,WM_CAP_SET_PREVIEWRATE,125,0) '当帧在preview模式显示时设置速度.

'
'Start previewing the image from the camera
'
' SendMessage(hHwnd,WM_CAP_SET_PREVIEW,False,0)

' Resize window to fit in pictureBox
'
SetWindowPos(hHwnd,HWND_BOTTOM,picCapture.Width,picCapture.Height,_
SWP_NOMOVE Or SWP_NOZORDER)

btnSave.Enabled = True
btnStop.Enabled = True
btnStart.Enabled = False
Else
'
' Error connecting to device close window
'
DestroyWindow(hHwnd)

btnSave.Enabled = False
End If

End Sub

Private Sub btnStart_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles btnStart.Click
iDevice = lstDevices.SelectedIndex
OpenPreviewWindow()
Me.Timer1.Start()
End Sub

Private Sub ClosePreviewWindow()
'
' Disconnect from device
'
SendMessage(hHwnd,WM_CAP_DRIVER_DISCONNECT,0)
' ' close window
'
DestroyWindow(hHwnd)
End Sub

Private Sub btnStop_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles btnStop.Click
ClosePreviewWindow()
btnSave.Enabled = False
btnStart.Enabled = True
btnStop.Enabled = False
End Sub

Private Sub btnSave_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles btnSave.Click
savefile()

End Sub

Private Sub Form1_Closing(ByVal sender As Object,ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
If btnStop.Enabled Then
ClosePreviewWindow()
End If
End Sub

Private Sub pccc()

Dim temprgb As rgbp
Dim tempcolor As Color
Dim newbitmap As Bitmap

CopyClipboard()
newbitmap = bmap.Clone
Call getrgbp()
For i = 1 To x - 2 Step 1
For j = 1 To y - 2 Step 1
temprgb.r = rgbpoint(i,j).r + R + APL
temprgb.g = rgbpoint(i,j).g + G + APL
temprgb.b = rgbpoint(i,j).b + B + APL

If temprgb.r < 0 Then
temprgb.r = 0
End If

If temprgb.g < 0 Then
temprgb.g = 0
End If

If temprgb.b < 0 Then
temprgb.b = 0
End If
If temprgb.r > 255 Then
temprgb.r = 255
End If

If temprgb.g > 255 Then
temprgb.g = 255
End If

If temprgb.b > 255 Then
temprgb.b = 255
End If
newbitmap.SetPixel(i,_
Color.FromArgb(temprgb.r,temprgb.g,temprgb.b))

Next
Next
PicB1.Image = newbitmap
End Sub

Private Sub Timer1_Tick(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles Timer1.Tick
pccc()
End Sub
Private Sub RGBA()
R = TrackBar1.Value
G = TrackBar2.Value
B = TrackBar4.Value
APL = TrackBar3.Value

End Sub

Private Sub TrackBar1_MouseUp(ByVal sender As Object,ByVal e As System.Windows.Forms.MouseEventArgs) Handles TrackBar1.MouseUp
RGBA()

End Sub

Private Sub TrackBar2_MouseUp(ByVal sender As Object,ByVal e As System.Windows.Forms.MouseEventArgs) Handles TrackBar2.MouseUp
RGBA()

End Sub

Private Sub TrackBar3_MouseUp(ByVal sender As System.Object,ByVal e As System.Windows.Forms.MouseEventArgs) Handles TrackBar3.MouseUp
RGBA()

End Sub

Private Sub TrackBar4_MouseUp(ByVal sender As Object,ByVal e As System.Windows.Forms.MouseEventArgs) Handles TrackBar4.MouseUp
RGBA()

End Sub

Private Sub TrackBar3_Scroll(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles TrackBar3.Scroll

End SubEnd Class