vb中如何使用扫描仪及将其图片存入sqlserver中?多谢了

[blue23]

听说是用kodak
但我不会用还请帮助!最好有代码!多谢了

[blue23]

还请帮助

[AKillGodKillBuddha]

win98、win2000就有自带的控件可以用来控制twain标准的扫描仪。
控件名：kodak 图像编辑控制——含2个控件：ImgEdit
ImgAnnTool
kodak 图像扫描控制——含1个控件： ImgScan

设置ImgScan1的destimagecontrol属性为需要显示扫描图片的imgedit控件名
使用范例如下：
ImgScan1.OpenScanner
ImgScan1.Image = app.path+"1.bmp"
ImgScan1.FileType = BMP_Bitmap
ImgScan1.StartScan
ImgEdit
ImgScan1.CloseScanner
有关twain标准的资料可以查询 www.twain.org

一个使用Windows自带的扫描仪控件的例子，用VB编写的，可以用到PB中．是微软自Windows97开始附加的一个kodak提供的Imaging Controls．并且还带有在线帮助． 在windows 97中有它的1.0版本，windows 98是2.1版本．并且在Win97中带有VB制作的例子，只要安装Win97就有，它的存放路径是windows\wangsamp(使用win97朋友不用下载了

此控件有四组功能，分别为：(控件的详细使用方法可以看windows\help\wangocxd.hlp
kodak 图像编辑控件 ImgEdit.ocx
kodak 图像管理控件 ImgAdmin.ocx
kodak 图像扫描控件 ImgScan.ocxkodak
图像缩略图控件 ImgThumb.ocx

[AKillGodKillBuddha]

'http://support.microsoft.com/default.aspx?scid=kb;EN-US;258038

'*************************************************************************
'**
'** 使用 ADODB.Stream 保存/读取文件到数据库
'** 引用 Microsoft ActiveX Data Objects 2.5 Library 及以上版本
'**
'** ----- 数据库连接字符串模板 ---------------------------------------
'** ACCESS数据库
'** iConcStr = "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False" & _
'** ";Data Source=数据库名"
'**
'** SQL数据库
'** iConcStr = "Provider=SQLOLEDB.1;Persist Security Info=True;" & _
'** "User ID=用户名;Password=密码;Initial Catalog=数据库名;Data Source=SQL服务器名"
'**

'保存文件到数据库中
Sub s_SaveFile()
Dim iStm As ADODB.Stream
Dim iRe As ADODB.Recordset
Dim iConcStr As String

'数据库连接字符串
iConcStr = "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False" & _
";Data Source=F:\csdn_vb\database\保存图片\img.mdb"
Dim iConc As ADODB.Connection
Set iConc = New ADODB.Connection

iConc.Open iConcStr
'读取文件到内容
Set iStm = New ADODB.Stream
With iStm
.Type = adTypeBinary '二进制模式
.Open
.LoadFromFile App.Path + "\com.doc"
End With

'打开保存文件的表
Set iRe = New ADODB.Recordset
With iRe
.Open "select * from img", iConc, 1, 3
.AddNew '新增一条记录
.Fields("photo") = iStm.Read
.Update
End With

'完成后关闭对象
iRe.Close
iStm.Close
End Sub

Sub s_ReadFile()
Dim iStm As ADODB.Stream
Dim iRe As ADODB.Recordset
Dim iConc As String

'数据库连接字符串
iConc = "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False" & _
";Data Source=F:\csdn_vb\database\保存图片\img.mdb"

'打开表
Set iRe = New ADODB.Recordset
iRe.Open "img", iConc, adOpenKeyset, adLockReadOnly
iRe.Filter = "id=3" '比如单击datagrid后找到id=3的纪录

'保存到文件
Set iStm = New ADODB.Stream
With iStm
.Mode = adModeReadWrite
.Type = adTypeBinary
.Open
.Write iRe("photo")
.SaveToFile "c:\com.doc"
End With

OLE1.SourceDoc = "c:\\com.doc"
OLE1.Action = 1 'use the old action method
OLE1.SizeMode = vbOLESizeAuttoSize '调节对象大小使其正好充满OLE容器控件

'Picture1.Picture = LoadPicture("c:\tesd.bmp")

'关闭对象
iRe.Close
iStm.Close
End Sub



Private Sub Command1_Click()
Call s_ReadFile
End Sub

Private Sub Command2_Click()
Call s_SaveFile
End Sub

[射天狼]

Option Explicit

Dim cn As New ADODB.Connection, rs As New ADODB.Recordset

'保存
Private Sub Command1_Click()
Dim bteContent() As Byte

Open "C:\aa.bmp" For Binary Access Read As #1
bteContent = InputB(LOF(1), #1)
Close #1

If rs.State = adStateOpen Then rs.Close
rs.Open "select * from tablename", cn, adOpenDynamic, adLockPessimistic
rs.AddNew
rs!Name = "张三"
rs!AGE = 22
rs!SEX = "男"
rs.Fields("PHOTO").AppendChunk bteContent
rs.Update

Erase bteContent
End Sub

'打开
Private Sub Command2_Click()
Dim bteContent() As Byte
If rs.State = adStateOpen Then rs.Close
rs.Open "select * from tablename", cn, adOpenForwardOnly, adLockReadOnly
bteContent = rs.Fields("PHOTO").GetChunk(rs.Fields("PHOTO").ActualSize)

Open "C:\aa.bmp" For Binary Access Write As #1
Put #1, , bteContent
Close #1
Image1.Picture = LoadPicture("C:\aa.bmp")
End Sub

Private Sub Form_Load()
On Error GoTo Errhandle
cn.ConnectionString = "Driver={SQL Server};SERVER=DataServer;DATABASE=zxzx;UID=information;PWD=information*&#"
cn.Open

Exit Sub
Errhandle:
MsgBox Err.Description, vbExclamation
End Sub

Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
On Error Resume Next
rs.Close
Set rs = Nothing
cn.Close
Set cn = Nothing
End Sub