★★★急!!! Win2000下打印页面控制的问题

[EtNewLand]

请高手赐教以下代码存在的问题
运行情况:
1.在Win98系统打印页面可以控制没有问题.
2.Win2000系统下打印页面超出3300时无法打印.

Public PAPERWIDTH, PAPERLENGTH As Integer
Public Const DMPAPER_USER = 256

Public Enum PrinterOrientationConstants
OrientPortrait = 1
OrientLandscape = 2
End Enum
Private Type DEVMODE
dmDeviceName As String * 32
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 * 32
dmUnusedPadding As Integer
dmBitsPerPel As Integer
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFrequency As Long
End Type
Private Type PRINTER_DEFAULTS
pDatatype As String
pDevMode As Long
DesiredAccess As Long
End Type
Private Type PRINTER_INFO_2
pServerName As Long
pPrinterName As Long
pShareName As Long
pPortName As Long
pDriverName As Long
pComment As Long
pLocation As Long
pDevMode As Long
pSepFile As Long
pPrintProcessor As Long
pDatatype As Long
pParameters As Long
pSecurityDescriptor As Long
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
Private Const DMPAPER_LETTER = 1
Private Const DMPAPER_A3 = 8 ' A3 297 x 420 mm
Private Const DMPAPER_A4 = 9 ' A4 210 x 297 mm
Private Const DMPAPER_B4 = 12 '
Private Const DMPAPER_B5 = 13 '

Private Const DMPAPER_XS = 256

Private Const DC_PAPERNAMES = 16
Private Const DC_PAPERS = 2
Private Const DC_PAPERSIZE = 3

Private Const DM_IN_BUFFER = 8
Private Const DM_OUT_BUFFER = 2
Private Const DM_ORIENTATION = &H1
Private Const DM_PAPERSIZE = &H2&
Private Const DM_PaperLength = &H4
Private Const DM_PaperWidth = &H8&
Private Const Dm_DeviceName = &H9&


Private Const PRINTER_ACCESS_ADMINISTER = &H4
Private Const PRINTER_ACCESS_USE = &H8
Private Const STANDARD_RIGHTS_REQUIRED = &HF0000
Private Const PRINTER_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED Or PRINTER_ACCESS_ADMINISTER Or PRINTER_ACCESS_USE)

Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, hpvSource As Any, ByVal cbCopy As Long)
Private Declare Function OpenPrinter Lib "winspool.drv" Alias "OpenPrinterA" (ByVal pPrinterName As String, phPrinter As Long, pDefault As Any) As Long
Private Declare Function ClosePrinter Lib "winspool.drv" (ByVal hPrinter As Long) As Long
Private 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 Long
Private Declare Function GetPrinter Lib "winspool.drv" Alias "GetPrinterA" (ByVal hPrinter As Long, ByVal Level As Long, pPrinter As Any, ByVal cbBuf As Long, pcbNeeded As Long) As Long
Private Declare Function SetPrinter Lib "winspool.drv" Alias "SetPrinterA" (ByVal hPrinter As Long, ByVal Level As Long, pPrinter As Any, ByVal Command As Long) As Long
Private Declare Function DeviceCapabilities Lib "winspool.drv" Alias "DeviceCapabilitiesA" (ByVal lpDeviceName As String, ByVal lpPort As String, ByVal iIndex As Long, ByVal lpOutput As String, lpDevMode As DEVMODE) As Long

Function SetDefaultPrinterOrientation(ByVal eOrientation As PrinterOrientationConstants, ByVal DMPAPER_USER As String) As Boolean
Dim bDevMode() As Byte
Dim bPrinterInfo2() As Byte
Dim hPrinter As Long
Dim lResult As Long
Dim nSize As Long
Dim sPrnName As String
Dim dm As DEVMODE
Dim pd As PRINTER_DEFAULTS
Dim pi2 As PRINTER_INFO_2

sPrnName = Printer.DeviceName
' PRINTER_ALL_ACCESS required under
' NT, because we're going to call
' SetPrinter
pd.DesiredAccess = PRINTER_ALL_ACCESS

' Get a handle to the printer.
If OpenPrinter(sPrnName, hPrinter, pd) Then
' Get number of bytes requires for
' PRINTER_INFO_2 structure
Call GetPrinter(hPrinter, 2&, 0&, 0&, nSize)
' Create a buffer of the required size
ReDim bPrinterInfo2(1 To nSize) As Byte
' Fill buffer with structure
lResult = GetPrinter(hPrinter, 2, bPrinterInfo2(1), _
nSize, nSize)
' Copy fixed portion of structure into VB Type variable
Call CopyMemory(pi2, bPrinterInfo2(1), Len(pi2))

' Get number of bytes requires for DEVMODE structure
nSize = DocumentProperties(0&, hPrinter, sPrnName, _
0&, 0&, 0)
' Create a buffer of the required size
ReDim bDevMode(1 To nSize)

' If PRINTER_INFO_2 points to a DEVMODE structure, copy it into our buffer
If pi2.pDevMode Then
Call CopyMemory(bDevMode(1), ByVal pi2.pDevMode, Len(dm))
Else
' Otherwise, call DocumentProperties to get a DEVMODE structure
Call DocumentProperties(0&, hPrinter, sPrnName, _
bDevMode(1), 0&, DM_OUT_BUFFER)
End If
' Copy fixed portion of structure into VB Type variable
Call CopyMemory(dm, bDevMode(1), Len(dm))
With dm
' Set new orientation
.dmOrientation = eOrientation
.dmFields = DM_ORIENTATION + DM_PAPERSIZE
' Select Case DMPAPER_USER
' Case "A3"
' .dmPaperSize = DMPAPER_A3
' Case "A4"
' .dmPaperSize = DMPAPER_A4
' Case "B4"
' .dmPaperSize = DMPAPER_B4
' Case "B5"
' .dmPaperSize = DMPAPER_B5
' Case "LETTER"
' .dmPaperSize = DMPAPER_LETTER
' Case "XS"
.dmPaperSize = DMPAPER_USER
.dmPaperLength = PAPERLENGTH
.dmPaperWidth = PAPERWIDTH
.dmFields = DM_ORIENTATION + DM_PAPERSIZE + DM_PaperLength + DM_PaperWidth
'由调用程序赋值变量 DM_PaperLength , DM_PaperWidth 调整纸张大小设为自定义，
' End Select
'.dmOrientation = eOrientation
'.dmFields = DM_PAPERSIZE
End With
' Copy our Type back into buffer
Call CopyMemory(bDevMode(1), dm, Len(dm))
' Set new orientation
Call DocumentProperties(0&, hPrinter, sPrnName, _
bDevMode(1), bDevMode(1), DM_IN_BUFFER Or _
DM_OUT_BUFFER)

' Point PRINTER_INFO_2 at our
' modified DEVMODE
pi2.pDevMode = VarPtr(bDevMode(1))
' Set new orientation system-wide
lResult = SetPrinter(hPrinter, 2, pi2, 0&)

' Clean up and exit
Call ClosePrinter(hPrinter)
SetDefaultPrinterOrientation = True
Else
SetDefaultPrinterOrientation = False
End If

End Function