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完美支持98、2000系统自定义打印纸张的VB代码

发表日期:2008-3-8 |


主要代码取自微软网站上的一篇文章,只做少许改动。98、2000系统下已测试通过(打印机LQ-300K)
'模块modPrint
Option EXPlicitPublic Declare Function EnumForms Lib "winspool.drv" Alias "EnumFormsA" _
    (ByVal hPrinter As Long, ByVal Level As Long, ByRef pForm As Any, _
    ByVal cbBuf As Long, ByRef pcbNeeded As Long, _
    ByRef pcReturned As Long) As LongPublic Declare Function AddForm Lib "winspool.drv" Alias "AddFormA" _
    (ByVal hPrinter As Long, ByVal Level As Long, pForm As Byte) As LongPublic Declare Function DeleteForm Lib "winspool.drv" Alias "DeleteFormA" _
    (ByVal hPrinter As Long, ByVal pFormName As String) As LongPublic Declare Function OpenPrinter Lib "winspool.drv" _
    Alias "OpenPrinterA" (ByVal pPrinterName As String, _
    PHPrinter As Long, ByVal pDefault As Long) As LongPublic Declare Function ClosePrinter Lib "winspool.drv" _
    (ByVal hPrinter As Long) As LongPublic Declare Function DocumentProperties Lib "winspool.drv" _
    Alias "DocumentPropertiesA" (ByVal hwnd As Long, _
    ByVal hPrinter As Long, ByVal pDeviceName As String, _
    pDevModeOutput As Any, pDevModeInput As Any, ByVal fMode As Long) _
    As LongPublic Declare Function ResetDC Lib "gdi32" Alias "ResetDCA" _
    (ByVal hdc As Long, lpInitData As Any) As LongPublic Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" _
    (hpvDest As Any, hpvSource As Any, ByVal cbCopy As Long)Public Declare Function lstrcpy Lib "kernel32" Alias "lstrcpyA" _
    (ByVal lpString1 As String, ByRef lpString2 As Long) As Long' Optional functions not used in this sample, but may be useful.
Public Declare Function GetForm Lib "winspool.drv" Alias "GetFormA" _
    (ByVal hPrinter As Long, ByVal pFormName As String, _
    ByVal Level As Long, pForm As Byte, ByVal cbBuf As Long, _
    pcbNeeded As Long) As LongPublic Declare Function SetForm Lib "winspool.drv" Alias "SetFormA" _
    (ByVal hPrinter As Long, ByVal pFormName As String, _
    ByVal Level As Long, pForm As Byte) As Long' Constants for DEVMODE
Public Const CCHFORMNAME = 32
Public Const CCHDEVICENAME = 32
Public Const DM_FORMNAME As Long = &H10000
Public Const DM_ORIENTATION = &H1&
' Constants for PRINTER_DEFAULTS.DesiredAccess
Public Const PRINTER_ACCESS_ADMINISTER = &H4
Public Const PRINTER_ACCESS_USE = &H8
Public Const STANDARD_RIGHTS_REQUIRED = &HF0000
Public Const PRINTER_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED Or _
  PRINTER_ACCESS_ADMINISTER Or PRINTER_ACCESS_USE)' Constants for DocumentProperties() call
Public Const DM_MODIFY = 8
Public Const DM_IN_BUFFER = DM_MODIFY
Public Const DM_COPY = 2
Public Const DM_OUT_BUFFER = DM_COPY' Custom constants for this sample's SelectForm function
Public Const FORM_NOT_SELECTED = 0
Public Const FORM_SELECTED = 1
Public Const FORM_ADDED = 2Public Type RECTL
        Left As Long
        Top As Long
        Right As Long
        Bottom As Long
End TypePublic Type SIZEL
        cx As Long
        cy As Long
End TypePublic Type SECURITY_DESCRIPTOR
        Revision As Byte
        Sbz1 As Byte
        Control As Long
        Owner As Long
        Group As Long
        Sacl As Long  ' ACL
        Dacl As Long  ' ACL
End Type' The two definitions for FORM_INFO_1 make the coding easier.
Public Type FORM_INFO_1
        Flags As Long
        pName As Long   ' String
        Size As SIZEL
        ImageableArea As RECTL
End TypePublic Type sFORM_INFO_1
        Flags As Long
        pName As String
        Size As SIZEL
        ImageableArea As RECTL
End TypePublic Type DEVMODE
        dmDeviceName As String * CCHDEVICENAME
        dmSpecVersion As Integer
        dmDriverVersion As Integer
        dmSize As Integer
        dmDriverExtra As Integer
        dmFields As Long
        dmOrientation As Integer
        dmPaperSize As Integer
        dmPaperLength As Integer
        dmPaperWidth As Integer
        dmScale As Integer
        dmCopies As Integer
        dmDefaultSource As Integer
        dmPrintQuality As Integer
        dmColor As Integer
        dmDuplex As Integer
        dmYResolution As Integer
        dmTTOption As Integer
        dmCollate As Integer
        dmFormName As String * CCHFORMNAME
        dmUnusedPadding As Integer
        dmBitsPerPel As Long
        dmPelsWidth As Long
        dmPelsHeight As Long
        dmDisplayFlags As Long
        dmDisplayFrequency As Long
End Type
Public Type PRINTER_DEFAULTS
        pDatatype As String
        pDevMode As Long    ' DEVMODE
        DesiredAccess As Long
End TypePublic Type PRINTER_INFO_2
        pServerName As String
        pPrinterName As String
        pShareName As String
        pPortName As String
        pDriverName As String
        pComment As String
        pLocation As String
        pDevMode As DEVMODE
        pSepFile As String
        pPrintProcessor As String
        pDatatype As String
        pParameters As String
        pSecurityDescriptor As SECURITY_DESCRIPTOR
        Attributes As Long
        Priority As Long
        DefaultPriority As Long
        StartTime As Long
        UntilTime As Long
        Status As Long
        cJobs As Long
        AveragePPM As Long
End Type
'判定系统是否为NT系统
Public Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" _
                        (lpVersionInformation As OSVERSIONINFO) As LongPublic Type OSVERSIONINFO
    dwOSVersionInfoSize As Long
    dwMajorVersion As Long
    dwMinorVersion As Long
    dwBuildNumber As Long
    dwPlatformId As Long
    szCSDVersion As String * 128      '  Maintenance string for PSS usage
End Type
Public Function SelectForm(FormName As String, ByVal MyhWnd As Long) _
    As Integer
  Dim nSize As Long           ' Size of DEVMODE
  Dim pDevMode As DEVMODE
  Dim PrinterHandle As Long   ' Handle to printer
  Dim hPrtDC As Long          ' Handle to Printer DC
  Dim PrinterName As String
  Dim aDevMode() As Byte      ' Working DEVMODE
  Dim FormSize As SIZEL
  Dim tmpFormName As String
  Dim isNT As Boolean
  Dim PaperWidth As Long, PaperHeight As Long
 
 
  '在这里统一添加自定义纸张
  Select Case FormName
    Case "广东省发票"
      With FormSize   ' Desired page size
        .cx = 186000
        .cy = 102000
      End With
      PaperWidth = 10544 '15.6cm
      PaperHeight = 5784 '10.2cm
    Case "80列报表"
      With FormSize   ' Desired page size
        .cx = 210000
        .cy = 280000
      End With
      PaperWidth = 11904 '21cm
      PaperHeight = 15872 '28cm
    Case "40列报表"
      With FormSize   ' Desired page size
        .cx = 210000
        .cy = 140000
      End With
      PaperWidth = 11904 '21cm
      PaperHeight = 7936 '14cm
    Case "20列报表"
      With FormSize   ' Desired page size
        .cx = 210000
        .cy = 70000
      End With
      PaperWidth = 11904 '21cm
      PaperHeight = 4008 '7cm
  End Select
 
  '不是NT直接给Printer赋值得了
  If Not IsNtOs Then
    Printer.Width = PaperWidth
    Printer.Height = PaperHeight
    SelectForm = FORM_SELECTED
    Exit Function
  End If
 
 
  PrinterName = Printer.DeviceName  ' Current printer
  hPrtDC = Printer.hdc              ' hDC for current Printer
  SelectForm = FORM_NOT_SELECTED    ' Set for failure unless reset in code.
 
  ' Get a handle to the printer.
  If OpenPrinter(PrinterName, PrinterHandle, 0&) Then
      ' Retrieve the size of the DEVMODE.
      nSize = DocumentProperties(MyhWnd, PrinterHandle, PrinterName, 0&, _
              0&, 0&)
      ' Reserve memory for the actual size of the DEVMODE.
      ReDim aDevMode(1 To nSize)
 
      ' Fill the DEVMODE from the printer.
      nSize = DocumentProperties(MyhWnd, PrinterHandle, PrinterName, _
              aDevMode(1), 0&, DM_OUT_BUFFER)
      ' Copy the Public (predefined) portion of the DEVMODE.
      Call CopyMemory(pDevMode, aDevMode(1), Len(pDevMode))
 
      ' If FormName is "MyCustomForm", we must make sure it exists
      ' before using it. Otherwise, it came from our EnumForms list,
      ' and we do not need to check first. Note that we could have
      ' passed in a Flag instead of checking for a literal name.
 
      tmpFormName = FormName
     
      If GetFormName(PrinterHandle, FormSize, tmpFormName) = 0 Then
          ' Form not found - Either of the next 2 lines will work.
          'FormName = AddNewForm(PrinterHandle, FormSize, "MyCustomForm")
          AddNewForm PrinterHandle, FormSize, FormName
          If GetFormName(PrinterHandle, FormSize, FormName) = 0 Then
              ClosePrinter (PrinterHandle)
              SelectForm = FORM_NOT_SELECTED   ' Selection Failed!
              Exit Function
          Else
              SelectForm = FORM_ADDED  ' Form Added, Selection sUCceeded!
          End If
      End If
 
      ' Change the appropriate member in the DevMode.
      ' In this case, you want to change the form name.
      pDevMode.dmFormName = FormName & Chr(0)  ' Must be NULL terminated!
      ' Set the dmFields bit flag to indicate what you are changing.
      pDevMode.dmFields = DM_FORMNAME
 
      ' Copy your changes back, then update DEVMODE.
      Call CopyMemory(aDevMode(1), pDevMode, Len(pDevMode))
      nSize = DocumentProperties(MyhWnd, PrinterHandle, PrinterName, _
              aDevMode(1), aDevMode(1), DM_IN_BUFFER Or DM_OUT_BUFFER)
 
      nSize = ResetDC(hPrtDC, aDevMode(1))   ' Reset the DEVMODE for the DC.
 
      ' Close the handle when you are finished with it.
      ClosePrinter (PrinterHandle)
      ' Selection Succeeded! But was Form Added?
      If SelectForm <> FORM_ADDED Then SelectForm = FORM_SELECTED
  Else
      SelectForm = FORM_NOT_SELECTED   ' Selection Failed!
  End If
End Function
Public Function GetFormName(ByVal PrinterHandle As Long, _
                          FormSize As SIZEL, FormName As String) As Integer
  Dim NumForms As Long, I As Long
  Dim FI1 As FORM_INFO_1
  Dim aFI1() As FORM_INFO_1           ' Working FI1 array
  Dim Temp() As Byte                  ' Temp FI1 array
  Dim FormIndex As Integer
  Dim BytesNeeded As Long
  Dim RetVal As Long
 
  FormName = vbNullString
  FormIndex = 0
  ReDim aFI1(1)
  ' First call retrieves the BytesNeeded.
  RetVal = EnumForms(PrinterHandle, 1, aFI1(0), 0&, BytesNeeded, NumForms)
  ReDim Temp(BytesNeeded)
  ReDim aFI1(BytesNeeded / Len(FI1))
  ' Second call actually enumerates the supported forms.
  RetVal = EnumForms(PrinterHandle, 1, Temp(0), BytesNeeded, BytesNeeded, _
           NumForms)
  Call CopyMemory(aFI1(0), Temp(0), BytesNeeded)
  For I = 0 To NumForms - 1
      With aFI1(I)
          If .Size.cx = FormSize.cx And .Size.cy = FormSize.cy Then
             ' Found the desired form
              FormName = PtrCtoVbString(.pName)
              FormIndex = I + 1
              Exit For
          End If
      End With
  Next I
  GetFormName = FormIndex  ' Returns non-zero when form is found.
End FunctionPublic Function AddNewForm(PrinterHandle As Long, FormSize As SIZEL, _
                           FormName As String) As String
  Dim FI1 As sFORM_INFO_1
  Dim aFI1() As Byte
  Dim RetVal As Long
 
  With FI1
      .Flags = 0
      .pName = FormName
      With .Size
          .cx = FormSize.cx
          .cy = FormSize.cy
      End With
      With .ImageableArea
          .Left = 0
          .Top = 0
          .Right = FI1.Size.cx
          .Bottom = FI1.Size.cy
      End With
  End With
  ReDim aFI1(Len(FI1))
  Call CopyMemory(aFI1(0), FI1, Len(FI1))
  RetVal = AddForm(PrinterHandle, 1, aFI1(0))
  If RetVal = 0 Then
      If Err.LastDllError = 5 Then
          MsgBox "You do not have permissions to add a form to " & _
             Printer.DeviceName, vbExclamation, "Access Denied!"
      Else
          MsgBox "Error: " & Err.LastDllError, , "Error Adding Form"
          'MsgBox "Error: " & Err.LastDllError, "Error Adding Form"
      End If
      AddNewForm = "none"
  Else
      AddNewForm = FI1.pName
  End If
End Function
Public Sub PrintTest()
  ' Print two test pages to confirm the page size.
  Printer.Print "Top of Page 1."
  Printer.NewPage
  ' Spacing between lines should reflect the chosen page height.
  Printer.Print "Top of Page 2. - Check the page Height (Length.)"
  Printer.EndDoc
  MsgBox "Check Printer " & Printer.DeviceName, vbInformation, "Done!"
End Sub
Public Function PtrCtoVbString(ByVal Add As Long) As String
  Dim sTemp As String * 512, X As Long
 
  X = lstrcpy(sTemp, ByVal Add)
  If (InStr(1, sTemp, Chr(0)) = 0) Then
       PtrCtoVbString = ""
  Else
       PtrCtoVbString = Left(sTemp, InStr(1, sTemp, Chr(0)) - 1)
  End If
End Function
Public Function IsNtOs() As Boolean
  Dim ver As OSVERSIONINFO
 
  ver.dwOSVersionInfoSize = 148
  GetVersionEx ver
  With ver
      Select Case .dwPlatformId
          Case 0, 1
            IsNtOs = False
          Case 2
            IsNtOs = True
      End Select
  End With
End Function
Public Function UseForm(FormName As String, sHwnd As Long) As Integer
  Dim RetVal As Integer
  Dim FormSize As SIZEL ' Size of desired form
     
  RetVal = SelectForm(FormName, sHwnd) '选择纸张类型
  UseForm = RetVal
  Select Case RetVal
      Case FORM_NOT_SELECTED   ' 0
          ' 选择纸张失败!
          'MsgBox "Unable to retrieve From name", vbExclamation, _
             '"Operation halted!"
      Case FORM_SELECTED   ' 1
          ' 选择成功!
          'PrintTest     ' Comment this line to avoid printing
      Case FORM_ADDED   ' 2
          ' 添加并选择成功.
          'PrintTest     ' Comment this line to avoid printing
  End Select
End Function
'调用,在Form1上放置Command1、Command2,复制下列代码:
Option ExplicitPrivate Sub Command1_Click()
  Dim FormName As String, RetValue As Integer  '自定义打印纸张
  FormName = "广东省发票"
  RetValue = UseForm(FormName, Me.hwnd)
  'If RetValue = 0 Then GoTo errPrint
  PrintTest
End SubPrivate Sub Command2_Click()
  Dim FormName As String, RetValue As Integer
 
  '自定义打印纸张
  FormName = "80列报表"
  RetValue = UseForm(FormName, Me.hwnd)
  'If RetValue = 0 Then GoTo errPrint
  PrintTest
End SubPrivate Sub Form_Load()
  Command1.Caption = "打印发票"
  Command2.Caption = "打印报表"
End Sub

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