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A DLL for scannre functions...

2 posts in this topic

#1 ·  Posted

Hi everybody !

I'm searching a DLL that will allow me to scan a document.

Does someone know a free DLL by the way please ?

Thank you a lot !


Olivier, from France.Free Wake On LAN script

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#2 ·  Posted

I've found this source in VBScript. I'll try to translate it into AutoItScript... This needs the Eztw32.dll DLL.

1.  Declare Function TWAIN_AcquireToClipboard Lib "EZTW32.DLL" (ByVal hwndApp&, ByVal wPixTypes&) As Integer
   2.    Declare Function TWAIN_SetHideUI Lib "Eztw32.dll" Alias "TWAIN_SetHideUI" (ByVal ui As Long) As Long
   3.    Declare Function TWAIN_OpenDefaultSource Lib "Eztw32.DLL" Alias "TWAIN_OpenDefaultSource" (ByVal hwnd As Long) As Integer
   4.    Declare Function TWAIN_SetCurrentResolution Lib "Eztw32.dll" Alias "TWAIN_SetCurrentResolution" (ByVal neufdix As Double) As Long
   5.    Declare Function TWAIN_SetCurrentPixelType Lib "Eztw32.dll" Alias "TWAIN_SetCurrentPixelType" (ByVal deux As Long) As Long
   6.    Declare Function TWAIN_LoadSourceManager Lib "Eztw32.dll" Alias "TWAIN_LoadSourceManager" () As Long
   7.    Declare Function TWAIN_SetCurrentUnits Lib "Eztw32.dll" Alias "TWAIN_SetCurrentUnits" (ByVal zero As Long) As Long
   8.    Declare Function TWAIN_SetBitDepth Lib "Eztw32.dll" Alias "TWAIN_SetBitDepth" (ByVal zero As Long) As Long
   9.    Declare Function TWAIN_OpenSourceManager Lib "EZTW32.DLL" Alias "TWAIN_OpenSourceManager" (ByVal hwnd As Long) As Long
  10.    Declare Function TWAIN_CloseSource Lib "EZTW32.DLL" Alias "TWAIN_CloseSource" () As Long
  11.    Declare Function TWAIN_SelectImageSource Lib "EZTW32.DLL" Alias "TWAIN_SelectImageSource" (ByVal hwnd As Long) As Integer
  12.    Declare Function TWAIN_State Lib "EZTW32.DLL" Alias "TWAIN_State" () As Integer
  13.  
  14.  
  15. FONCTION
  16.  
  17.        Dim l_Retour As Long
  18.        Dim s_cheminsauv As String
  19.        Dim i As Integer
  20.  
  21.        Try
  22.  
  23.            TWAIN_CloseSource()
  24.            TWAIN_LoadSourceManager()
  25.            TWAIN_OpenSourceManager(frm.Handle.ToInt32)
  26.            iRetour = TWAIN_OpenDefaultSource(frm.Handle.ToInt32)
  27.            If iRetour = 0 Then
  28.                iRetour = TWAIN_SelectImageSource(frm.Handle.ToInt32)
  29.                If iRetour = 1 Then
  30.                    iRetour = TWAIN_OpenDefaultSource(frm.Handle.ToInt32)
  31.                End If
  32.            End If
  33.  
  34.            If iRetour = 0 Then
  35.                Exit Function
  36.            End If
  37.  
  38.            If TWAIN_State() < 4 Then
  39.                MsgBox("Impossible de paramêtrer le scanner")
  40.                Exit Function
  41.            Else
  42.                'parametres du scanner
  43.                TWAIN_SetCurrentUnits(0) 'DPI
  44.                TWAIN_SetCurrentResolution(150) 'en points par pouces
  45.                TWAIN_SetCurrentPixelType(2) ' Scan format 0 = B&W, 1 Grey, 2 RGB
  46.                TWAIN_SetBitDepth(8) ' Bit Depth 1, 2, 4, 8 but depends on Pixeltype
  47.  
  48.                TWAIN_SetHideUI(True)
  49.            End If
  50.  
  51.  
  52.  
  53.            'scan du document
  54.            iRetour = TWAIN_AcquireToClipboard(frm.Handle.ToInt32, 32)
  55.  
  56.            If iRetour = 0 Then
  57.                MsgBox("Le scan du document a échoué.", MsgBoxStyle.Critical, "Scanner")
  58.                Exit Function
  59.            End If
  60.  
  61.            TWAIN_CloseSource()
  62.        Catch ex As Exception
  63.            Exit Function
  64.        End Try
  65.  
  66.        Try
  67.  
  68.            pbImage.Image = System.Windows.Forms.Clipboard.GetDataObject.GetData(System.Windows.Forms.DataFormats.Bitmap) 'on la met dans une picture box
  69.  
  70.            g_rcdCandidat.Seek(l_iNoCandidat)
  71.            s_cheminsauv = "c:\toto.jpg"
  72.  
  73.            i = 1
  74.            If System.IO.File.Exists(s_cheminsauv) = True Then
  75.                s_cheminsauv = Left(s_cheminsauv, s_cheminsauv.Length - 4)
  76.                While System.IO.File.Exists(s_cheminsauv & i & ".jpg") = True
  77.                    i = i + 1
  78.                End While
  79.                s_cheminsauv &= " "
  80.                s_cheminsauv &= i
  81.                s_cheminsauv &= ".jpg"
  82.            End If
  83.  
  84.            pbImage.Image.Save(s_cheminsauv, System.Drawing.Imaging.ImageFormat.Jpeg)
  85.  
  86.        Catch ex As Exception
  87.            MsgBox("Le document a bien été scanné," & Chr(13) & "mais une erreur s'est produite lors de la sauvegarde dans le dossier du candidat.", MsgBoxStyle.Critical, "Scanner")
  88.        End Try
  89.  
  90. FIN DE LA FONCTION

Olivier, from France.Free Wake On LAN script

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