http://expert.csdn.net/Expert/topic/2227/2227306.xml?temp=.7761957 参考： 'Constants used in the DevMode structure Private Const CCHDEVICENAME = 32 Private Const CCHFORMNAME = 32'Constants for NT security Private Const STANDARD_RIGHTS_REQUIRED = &HF0000 Private Const PRINTER_ACCESS_ADMINISTER = &H4 Private Const PRINTER_ACCESS_USE = &H8 Private Const PRINTER_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED Or PRINTER_ACCESS_ADMINISTER Or PRINTER_ACCESS_USE)'Constants used to make changes to the values contained in the DevMode Private Const DM_MODIFY = 8 Private Const DM_IN_BUFFER = DM_MODIFY Private Const DM_COPY = 2 Private Const DM_OUT_BUFFER = DM_COPY Private Const DM_DUPLEX = &H1000& Private Const DMDUP_SIMPLEX = 1 Private Const DMDUP_VERTICAL = 2 Private Const DMDUP_HORIZONTAL = 3 Private Const DM_ORIENTATION = &H1& Private PageDirection As Integer Private myPapersize As IntegerPrivate 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 dmLogPixels As Integer dmBitsPerPel As Long dmPelsWidth As Long dmPelsHeight As Long dmDisplayFlags As Long dmDisplayFrequency As Long dmICMMethod As Long ' // Windows 95 only dmICMIntent As Long ' // Windows 95 only dmMediaType As Long ' // Windows 95 only dmDitherType As Long ' // Windows 95 only dmReserved1 As Long ' // Windows 95 only dmReserved2 As Long ' // Windows 95 only End TypePrivate Type PRINTER_DEFAULTS 'Note: ' The definition of Printer_Defaults in the VB5 API viewer is incorrect. ' Below, pDevMode has been corrected to LONG. pDatatype As String pDevMode As Long DesiredAccess As Long End Type '------DECLARATIONSPrivate Declare Function OpenPrinter Lib "winspool.drv" Alias "OpenPrinterA" (ByVal pPrinterName As String, phPrinter As Long, pDefault As PRINTER_DEFAULTS) 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 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 Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, hpvSource As Any, ByVal cbCopy 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, ByVal pDevModeOutput As Any, ByVal pDevModeInput As Any, ByVal fMode As Long) As LongPrivate Sub SetOrientation(NewSetting As Long, chng As Integer, ByVal frm As Form) Dim PrinterHandle As Long Dim PrinterName As String Dim pd As PRINTER_DEFAULTS Dim MyDevMode As DEVMODE Dim Result As Long Dim Needed As Long Dim pFullDevMode As Long Dim pi2_buffer() As Long 'This is a block of memory for the Printer_Info_2 structure 'If you need to use the Printer_Info_2 User Defined Type, the ' definition of Printer_Info_2 in the API viewer is incorrect. ' pDevMode and pSecurityDescriptor should be defined As Long.
PrinterName = Printer.DeviceName If PrinterName = "" Then Exit Sub End If
pd.pDatatype = vbNullString pd.pDevMode = 0& 'Printer_Access_All is required for NT security pd.DesiredAccess = PRINTER_ALL_ACCESS
Result = OpenPrinter(PrinterName, PrinterHandle, pd)
'The first call to GetPrinter gets the size, in bytes, of the buffer needed. 'This value is divided by 4 since each element of pi2_buffer is a long. Result = GetPrinter(PrinterHandle, 2, ByVal 0&, 0, Needed) ReDim pi2_buffer((Needed \ 4)) Result = GetPrinter(PrinterHandle, 2, pi2_buffer(0), Needed, Needed)
'The seventh element of pi2_buffer is a Pointer to a block of memory ' which contains the full DevMode (including the PRIVATE portion). pFullDevMode = pi2_buffer(7)
'Copy the Public portion of FullDevMode into our DevMode structure Call CopyMemory(MyDevMode, ByVal pFullDevMode, Len(MyDevMode))
'Copy our DevMode structure back into FullDevMode Call CopyMemory(ByVal pFullDevMode, MyDevMode, Len(MyDevMode))
'Copy our changes to "the PUBLIC portion of the DevMode" into "the PRIVATE portion of the DevMode" Result = DocumentProperties(frm.hwnd, PrinterHandle, PrinterName, ByVal pFullDevMode, ByVal pFullDevMode, DM_IN_BUFFER Or DM_OUT_BUFFER)
'Update the printer's default properties (to verify, go to the Printer folder ' and check the properties for the printer) Result = SetPrinter(PrinterHandle, 2, pi2_buffer(0), 0&)
Call ClosePrinter(PrinterHandle)
'Note: Once "Set Printer = " is executed, anywhere in the code, after that point ' changes made with SetPrinter will ONLY affect the system-wide printer -- ' -- the changes will NOT affect the VB printer object. ' Therefore, it may be necessary to reset the printer object's parameters to ' those chosen in the devmode. Dim p As Printer For Each p In Printers If p.DeviceName = PrinterName Then Set Printer = p Exit For End If Next p Printer.Duplex = MyDevMode.dmDuplex End Sub
Public Sub ChngPrinterOrientationLandscape(ByVal frm As Form) PageDirection = 2 Call SetOrientation(DMDUP_SIMPLEX, PageDirection, frm) End SubPublic Sub ResetPrinterOrientation(ByVal frm As Form) If PageDirection = 1 Then PageDirection = 2 Else PageDirection = 1 End If Call SetOrientation(DMDUP_SIMPLEX, PageDirection, frm) End SubPublic Sub ChngPrinterOrientationPortrait(ByVal frm As Form) PageDirection = 1 Call SetOrientation(DMDUP_SIMPLEX, PageDirection, frm) End Sub Public Sub ResetPrinterPaperSize(ByVal frm As Form) If myPapersize = 1 Then myPapersize = 2 Else myPapersize = 1 End If Call SetPapersize(DMDUP_SIMPLEX, myPapersize, frm) End Sub Public Sub ChngPrinterPaperSizeLetter(ByVal frm As Form) myPapersize = 1 Call SetPapersize(DMDUP_SIMPLEX, myPapersize, frm) End Sub Public Sub ChngPrinterPaperSizeLedger(ByVal frm As Form) myPapersize = 3 Call SetPapersize(DMDUP_SIMPLEX, myPapersize, frm) End Sub Private Sub SetPapersize(NewSetting As Long, chng As Integer, ByVal frm As Form) Dim PrinterHandle As Long Dim PrinterName As String Dim pd As PRINTER_DEFAULTS Dim MyDevMode As DEVMODE Dim Result As Long Dim Needed As Long Dim pFullDevMode As Long Dim pi2_buffer() As Long 'This is a block of memory for the Printer_Info_2 structure 'If you need to use the Printer_Info_2 User Defined Type, the ' definition of Printer_Info_2 in the API viewer is incorrect. ' pDevMode and pSecurityDescriptor should be defined As Long.
PrinterName = Printer.DeviceName If PrinterName = "" Then Exit Sub End If
pd.pDatatype = vbNullString pd.pDevMode = 0& 'Printer_Access_All is required for NT security pd.DesiredAccess = PRINTER_ALL_ACCESS
Result = OpenPrinter(PrinterName, PrinterHandle, pd)
'The first call to GetPrinter gets the size, in bytes, of the buffer needed. 'This value is divided by 4 since each element of pi2_buffer is a long. Result = GetPrinter(PrinterHandle, 2, ByVal 0&, 0, Needed) ReDim pi2_buffer((Needed \ 4)) Result = GetPrinter(PrinterHandle, 2, pi2_buffer(0), Needed, Needed)
'The seventh element of pi2_buffer is a Pointer to a block of memory ' which contains the full DevMode (including the PRIVATE portion). pFullDevMode = pi2_buffer(7)
'Copy the Public portion of FullDevMode into our DevMode structure Call CopyMemory(MyDevMode, ByVal pFullDevMode, Len(MyDevMode))
'Copy our DevMode structure back into FullDevMode Call CopyMemory(ByVal pFullDevMode, MyDevMode, Len(MyDevMode))
'Copy our changes to "the PUBLIC portion of the DevMode" into "the PRIVATE portion of the DevMode" Result = DocumentProperties(frm.hwnd, PrinterHandle, PrinterName, ByVal pFullDevMode, ByVal pFullDevMode, DM_IN_BUFFER Or DM_OUT_BUFFER)
'Update the printer's default properties (to verify, go to the Printer folder ' and check the properties for the printer) Result = SetPrinter(PrinterHandle, 2, pi2_buffer(0), 0&)
Call ClosePrinter(PrinterHandle)
'Note: Once "Set Printer = " is executed, anywhere in the code, after that point ' changes made with SetPrinter will ONLY affect the system-wide printer -- ' -- the changes will NOT affect the VB printer object. ' Therefore, it may be necessary to reset the printer object's parameters to ' those chosen in the devmode. Dim p As Printer For Each p In Printers If p.DeviceName = PrinterName Then Set Printer = p Exit For End If Next p Printer.Duplex = MyDevMode.dmDuplex End Sub
返回或设置一个值，该值指出文档是以纵向还是横向的方式被打印。在设计时是不可用的。语法object.Orientation [= value]Orientation 属性的语法包含下面部分：部分 描述
Object 对象表达式，其值是“应用于”列表中的一个对象。
Value 一个决定页方向的值或常数，“设置值”中有详细描述。
设置值value 的设置值为：常数 值 描述
VbPRORPortrait 1 文档打印以纸的窄边作顶部。 VbPRORLandscape 2 文档打印以纸的宽边作顶部。
参考：
'Constants used in the DevMode structure
Private Const CCHDEVICENAME = 32
Private Const CCHFORMNAME = 32'Constants for NT security
Private Const STANDARD_RIGHTS_REQUIRED = &HF0000
Private Const PRINTER_ACCESS_ADMINISTER = &H4
Private Const PRINTER_ACCESS_USE = &H8
Private Const PRINTER_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED Or PRINTER_ACCESS_ADMINISTER Or PRINTER_ACCESS_USE)'Constants used to make changes to the values contained in the DevMode
Private Const DM_MODIFY = 8
Private Const DM_IN_BUFFER = DM_MODIFY
Private Const DM_COPY = 2
Private Const DM_OUT_BUFFER = DM_COPY
Private Const DM_DUPLEX = &H1000&
Private Const DMDUP_SIMPLEX = 1
Private Const DMDUP_VERTICAL = 2
Private Const DMDUP_HORIZONTAL = 3
Private Const DM_ORIENTATION = &H1&
Private PageDirection As Integer
Private myPapersize As IntegerPrivate 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
dmLogPixels As Integer
dmBitsPerPel As Long
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFrequency As Long
dmICMMethod As Long ' // Windows 95 only
dmICMIntent As Long ' // Windows 95 only
dmMediaType As Long ' // Windows 95 only
dmDitherType As Long ' // Windows 95 only
dmReserved1 As Long ' // Windows 95 only
dmReserved2 As Long ' // Windows 95 only
End TypePrivate Type PRINTER_DEFAULTS
'Note:
' The definition of Printer_Defaults in the VB5 API viewer is incorrect.
' Below, pDevMode has been corrected to LONG.
pDatatype As String
pDevMode As Long
DesiredAccess As Long
End Type
'------DECLARATIONSPrivate Declare Function OpenPrinter Lib "winspool.drv" Alias "OpenPrinterA" (ByVal pPrinterName As String, phPrinter As Long, pDefault As PRINTER_DEFAULTS) 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 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 Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, hpvSource As Any, ByVal cbCopy 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, ByVal pDevModeOutput As Any, ByVal pDevModeInput As Any, ByVal fMode As Long) As LongPrivate Sub SetOrientation(NewSetting As Long, chng As Integer, ByVal frm As Form)
Dim PrinterHandle As Long
Dim PrinterName As String
Dim pd As PRINTER_DEFAULTS
Dim MyDevMode As DEVMODE
Dim Result As Long
Dim Needed As Long
Dim pFullDevMode As Long
Dim pi2_buffer() As Long 'This is a block of memory for the Printer_Info_2 structure
'If you need to use the Printer_Info_2 User Defined Type, the
' definition of Printer_Info_2 in the API viewer is incorrect.
' pDevMode and pSecurityDescriptor should be defined As Long.
PrinterName = Printer.DeviceName
If PrinterName = "" Then
Exit Sub
End If
pd.pDatatype = vbNullString
pd.pDevMode = 0&
'Printer_Access_All is required for NT security
pd.DesiredAccess = PRINTER_ALL_ACCESS
Result = OpenPrinter(PrinterName, PrinterHandle, pd)
'The first call to GetPrinter gets the size, in bytes, of the buffer needed.
'This value is divided by 4 since each element of pi2_buffer is a long.
Result = GetPrinter(PrinterHandle, 2, ByVal 0&, 0, Needed)
ReDim pi2_buffer((Needed \ 4))
Result = GetPrinter(PrinterHandle, 2, pi2_buffer(0), Needed, Needed)
'The seventh element of pi2_buffer is a Pointer to a block of memory
' which contains the full DevMode (including the PRIVATE portion).
pFullDevMode = pi2_buffer(7)
'Copy the Public portion of FullDevMode into our DevMode structure
Call CopyMemory(MyDevMode, ByVal pFullDevMode, Len(MyDevMode))
'Make desired changes
MyDevMode.dmDuplex = NewSetting
MyDevMode.dmFields = DM_DUPLEX Or DM_ORIENTATION
MyDevMode.dmOrientation = chng
'Copy our DevMode structure back into FullDevMode
Call CopyMemory(ByVal pFullDevMode, MyDevMode, Len(MyDevMode))
'Copy our changes to "the PUBLIC portion of the DevMode" into "the PRIVATE portion of the DevMode"
Result = DocumentProperties(frm.hwnd, PrinterHandle, PrinterName, ByVal pFullDevMode, ByVal pFullDevMode, DM_IN_BUFFER Or DM_OUT_BUFFER)
'Update the printer's default properties (to verify, go to the Printer folder
' and check the properties for the printer)
Result = SetPrinter(PrinterHandle, 2, pi2_buffer(0), 0&)
Call ClosePrinter(PrinterHandle)
'Note: Once "Set Printer = " is executed, anywhere in the code, after that point
' changes made with SetPrinter will ONLY affect the system-wide printer --
' -- the changes will NOT affect the VB printer object.
' Therefore, it may be necessary to reset the printer object's parameters to
' those chosen in the devmode.
Dim p As Printer
For Each p In Printers
If p.DeviceName = PrinterName Then
Set Printer = p
Exit For
End If
Next p
Printer.Duplex = MyDevMode.dmDuplex
End Sub
PageDirection = 2
Call SetOrientation(DMDUP_SIMPLEX, PageDirection, frm)
End SubPublic Sub ResetPrinterOrientation(ByVal frm As Form) If PageDirection = 1 Then
PageDirection = 2
Else
PageDirection = 1
End If
Call SetOrientation(DMDUP_SIMPLEX, PageDirection, frm)
End SubPublic Sub ChngPrinterOrientationPortrait(ByVal frm As Form) PageDirection = 1
Call SetOrientation(DMDUP_SIMPLEX, PageDirection, frm)
End Sub
Public Sub ResetPrinterPaperSize(ByVal frm As Form) If myPapersize = 1 Then
myPapersize = 2
Else
myPapersize = 1
End If
Call SetPapersize(DMDUP_SIMPLEX, myPapersize, frm)
End Sub
Public Sub ChngPrinterPaperSizeLetter(ByVal frm As Form) myPapersize = 1
Call SetPapersize(DMDUP_SIMPLEX, myPapersize, frm)
End Sub
Public Sub ChngPrinterPaperSizeLedger(ByVal frm As Form) myPapersize = 3
Call SetPapersize(DMDUP_SIMPLEX, myPapersize, frm)
End Sub
Private Sub SetPapersize(NewSetting As Long, chng As Integer, ByVal frm As Form)
Dim PrinterHandle As Long
Dim PrinterName As String
Dim pd As PRINTER_DEFAULTS
Dim MyDevMode As DEVMODE
Dim Result As Long
Dim Needed As Long
Dim pFullDevMode As Long
Dim pi2_buffer() As Long 'This is a block of memory for the Printer_Info_2 structure
'If you need to use the Printer_Info_2 User Defined Type, the
' definition of Printer_Info_2 in the API viewer is incorrect.
' pDevMode and pSecurityDescriptor should be defined As Long.
PrinterName = Printer.DeviceName
If PrinterName = "" Then
Exit Sub
End If
pd.pDatatype = vbNullString
pd.pDevMode = 0&
'Printer_Access_All is required for NT security
pd.DesiredAccess = PRINTER_ALL_ACCESS
Result = OpenPrinter(PrinterName, PrinterHandle, pd)
'The first call to GetPrinter gets the size, in bytes, of the buffer needed.
'This value is divided by 4 since each element of pi2_buffer is a long.
Result = GetPrinter(PrinterHandle, 2, ByVal 0&, 0, Needed)
ReDim pi2_buffer((Needed \ 4))
Result = GetPrinter(PrinterHandle, 2, pi2_buffer(0), Needed, Needed)
'The seventh element of pi2_buffer is a Pointer to a block of memory
' which contains the full DevMode (including the PRIVATE portion).
pFullDevMode = pi2_buffer(7)
'Copy the Public portion of FullDevMode into our DevMode structure
Call CopyMemory(MyDevMode, ByVal pFullDevMode, Len(MyDevMode))
'Make desired changes
MyDevMode.dmDuplex = NewSetting
MyDevMode.dmFields = DM_DUPLEX Or DM_ORIENTATION
MyDevMode.dmPaperSize = chng
'Copy our DevMode structure back into FullDevMode
Call CopyMemory(ByVal pFullDevMode, MyDevMode, Len(MyDevMode))
'Copy our changes to "the PUBLIC portion of the DevMode" into "the PRIVATE portion of the DevMode"
Result = DocumentProperties(frm.hwnd, PrinterHandle, PrinterName, ByVal pFullDevMode, ByVal pFullDevMode, DM_IN_BUFFER Or DM_OUT_BUFFER)
'Update the printer's default properties (to verify, go to the Printer folder
' and check the properties for the printer)
Result = SetPrinter(PrinterHandle, 2, pi2_buffer(0), 0&)
Call ClosePrinter(PrinterHandle)
'Note: Once "Set Printer = " is executed, anywhere in the code, after that point
' changes made with SetPrinter will ONLY affect the system-wide printer --
' -- the changes will NOT affect the VB printer object.
' Therefore, it may be necessary to reset the printer object's parameters to
' those chosen in the devmode.
Dim p As Printer
For Each p In Printers
If p.DeviceName = PrinterName Then
Set Printer = p
Exit For
End If
Next p
Printer.Duplex = MyDevMode.dmDuplex
End Sub