头两天发了一个帖子,但问题还是没有解决
现在我发现,我的程序打印的主要问题,是setprinter 这个API函数不能正确执行
有人帮我不?
设置打印机纸张代码';;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
'*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_COPY = 2
Private Const DM_DUPLEX = &H1000&
Private Const DMDUP_SIMPLEX = 1
Private Const DMDUP_VERTICAL = 2
Private Const DMDUP_HORIZONTAL = 3Private Const DM_IN_BUFFER As Long = 8
Private Const DM_OUT_BUFFER As Long = 2
Private Const DM_ORIENTATION As Long = &H1
Private Const DM_PAPERSIZE = &H2&
Private Const DM_PAPERWIDTH = &H8&
Private Const DM_PAPERLENGTH = &H4&Public Enum typeOrient
orient0 = 0
OrientPortrait = 1
OrientLandscape = 2
End EnumPrivate 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 TypePrivate Type PRINTER_DEFAULTS
pDataType As String
pDevMode As Long
DesiredAccess As Long
End TypePrivate 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'*------DECLARATIONS
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 LongPrivate Declare Function ClosePrinter Lib "winspool.drv" _
(ByVal hPrinter As Long) As LongPrivate 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 LongPrivate 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 LongPrivate 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 Function mySetPrinter(prnName As String, _
Optional eOrientation As typeOrient = 0, _
Optional iDmpaper As Integer = 0, _
Optional iDmpaperLength As Single = 0, _
Optional iDmpaperWidth As Single = 0) _
As BooleanDim bDevMode() As Byte
Dim bPrinterInfo2() As Byte
Dim hPrinter As Long
Dim lResult As Long
Dim nSize As Long
Dim sPrnName As StringDim dm As DEVMODE
Dim olddm As DEVMODE
Dim pd As PRINTER_DEFAULTS
Dim pi2 As PRINTER_INFO_2 On Error GoTo err_proc
'*»ñÈ¡´òÓ¡»úµÄÉ豸Ãû³Æ
sPrnName = prnName
'*ÓÉÓÚÒªµ÷ÓÃSetPrinter£¬ËùÒÔ
'*Èç¹ûÊÇÔÚNTϾÍÒªÇóPRINTER_ALL_ACCESS
pd.DesiredAccess = PRINTER_ALL_ACCESS
'*»ñÈ¡´òÓ¡»ú¾ä±ú , pd
If OpenPrinter(sPrnName, hPrinter, 0&) Then
'*»ñÈ¡PRINTER_INFO_2½á¹¹ÒªÇóµÄ×Ö½ÚÊý
Call GetPrinter(hPrinter, 2&, 0&, 0&, nSize)
ReDim bPrinterInfo2(1 To nSize) As Byte
lResult = GetPrinter(hPrinter, 2, bPrinterInfo2(1), nSize, nSize)
Call CopyMemory(pi2, bPrinterInfo2(1), Len(pi2))
nSize = DocumentProperties(0&, hPrinter, sPrnName, 0&, 0&, 0)
ReDim bDevMode(1 To nSize)
If pi2.pDevMode Then
Call CopyMemory(bDevMode(1), ByVal pi2.pDevMode, Len(dm))
Else
Call DocumentProperties(0&, hPrinter, sPrnName, bDevMode(1), 0&, DM_OUT_BUFFER)
End If
Call CopyMemory(dm, bDevMode(1), Len(dm))
Call CopyMemory(olddm, bDevMode(1), Len(olddm))
With dm
If eOrientation <> 0 Then '*ÉèÖÃеÄ×ßÏò
.dmOrientation = eOrientation
.dmFields = DM_ORIENTATION
End If
If iDmpaper <> 0 And iDmpaper <> vbPRPSUser Then '*ÉèÖ½ÕÅ´óС
.dmPaperSize = iDmpaper
.dmFields = DM_PAPERSIZE
End If
If iDmpaper = vbPRPSUser Then '*Óû§×Ô¶¨Òå
.dmFields = DM_PAPERLENGTH Or DM_PAPERWIDTH
.dmPaperLength = iDmpaperLength
.dmPaperWidth = iDmpaperWidth
End If
End With
Call CopyMemory(bDevMode(1), dm, Len(dm))
Call DocumentProperties(0&, hPrinter, sPrnName, _
bDevMode(1), bDevMode(1), DM_IN_BUFFER Or _
DM_OUT_BUFFER)
pi2.pDevMode = VarPtr(bDevMode(1))
lResult = SetPrinter(hPrinter, 2, pi2, 0&)
Call ClosePrinter(hPrinter)
mySetPrinter = True
Else
mySetPrinter = False
End If
Exit Function
err_proc:
mySetPrinter = False
End Function';;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
现在我发现,我的程序打印的主要问题,是setprinter 这个API函数不能正确执行
有人帮我不?
设置打印机纸张代码';;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
'*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_COPY = 2
Private Const DM_DUPLEX = &H1000&
Private Const DMDUP_SIMPLEX = 1
Private Const DMDUP_VERTICAL = 2
Private Const DMDUP_HORIZONTAL = 3Private Const DM_IN_BUFFER As Long = 8
Private Const DM_OUT_BUFFER As Long = 2
Private Const DM_ORIENTATION As Long = &H1
Private Const DM_PAPERSIZE = &H2&
Private Const DM_PAPERWIDTH = &H8&
Private Const DM_PAPERLENGTH = &H4&Public Enum typeOrient
orient0 = 0
OrientPortrait = 1
OrientLandscape = 2
End EnumPrivate 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 TypePrivate Type PRINTER_DEFAULTS
pDataType As String
pDevMode As Long
DesiredAccess As Long
End TypePrivate 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'*------DECLARATIONS
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 LongPrivate Declare Function ClosePrinter Lib "winspool.drv" _
(ByVal hPrinter As Long) As LongPrivate 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 LongPrivate 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 LongPrivate 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 Function mySetPrinter(prnName As String, _
Optional eOrientation As typeOrient = 0, _
Optional iDmpaper As Integer = 0, _
Optional iDmpaperLength As Single = 0, _
Optional iDmpaperWidth As Single = 0) _
As BooleanDim bDevMode() As Byte
Dim bPrinterInfo2() As Byte
Dim hPrinter As Long
Dim lResult As Long
Dim nSize As Long
Dim sPrnName As StringDim dm As DEVMODE
Dim olddm As DEVMODE
Dim pd As PRINTER_DEFAULTS
Dim pi2 As PRINTER_INFO_2 On Error GoTo err_proc
'*»ñÈ¡´òÓ¡»úµÄÉ豸Ãû³Æ
sPrnName = prnName
'*ÓÉÓÚÒªµ÷ÓÃSetPrinter£¬ËùÒÔ
'*Èç¹ûÊÇÔÚNTϾÍÒªÇóPRINTER_ALL_ACCESS
pd.DesiredAccess = PRINTER_ALL_ACCESS
'*»ñÈ¡´òÓ¡»ú¾ä±ú , pd
If OpenPrinter(sPrnName, hPrinter, 0&) Then
'*»ñÈ¡PRINTER_INFO_2½á¹¹ÒªÇóµÄ×Ö½ÚÊý
Call GetPrinter(hPrinter, 2&, 0&, 0&, nSize)
ReDim bPrinterInfo2(1 To nSize) As Byte
lResult = GetPrinter(hPrinter, 2, bPrinterInfo2(1), nSize, nSize)
Call CopyMemory(pi2, bPrinterInfo2(1), Len(pi2))
nSize = DocumentProperties(0&, hPrinter, sPrnName, 0&, 0&, 0)
ReDim bDevMode(1 To nSize)
If pi2.pDevMode Then
Call CopyMemory(bDevMode(1), ByVal pi2.pDevMode, Len(dm))
Else
Call DocumentProperties(0&, hPrinter, sPrnName, bDevMode(1), 0&, DM_OUT_BUFFER)
End If
Call CopyMemory(dm, bDevMode(1), Len(dm))
Call CopyMemory(olddm, bDevMode(1), Len(olddm))
With dm
If eOrientation <> 0 Then '*ÉèÖÃеÄ×ßÏò
.dmOrientation = eOrientation
.dmFields = DM_ORIENTATION
End If
If iDmpaper <> 0 And iDmpaper <> vbPRPSUser Then '*ÉèÖ½ÕÅ´óС
.dmPaperSize = iDmpaper
.dmFields = DM_PAPERSIZE
End If
If iDmpaper = vbPRPSUser Then '*Óû§×Ô¶¨Òå
.dmFields = DM_PAPERLENGTH Or DM_PAPERWIDTH
.dmPaperLength = iDmpaperLength
.dmPaperWidth = iDmpaperWidth
End If
End With
Call CopyMemory(bDevMode(1), dm, Len(dm))
Call DocumentProperties(0&, hPrinter, sPrnName, _
bDevMode(1), bDevMode(1), DM_IN_BUFFER Or _
DM_OUT_BUFFER)
pi2.pDevMode = VarPtr(bDevMode(1))
lResult = SetPrinter(hPrinter, 2, pi2, 0&)
Call ClosePrinter(hPrinter)
mySetPrinter = True
Else
mySetPrinter = False
End If
Exit Function
err_proc:
mySetPrinter = False
End Function';;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
VB的String是基于Unicode的,每个字符两字节
可你调用的是ANSI版API,每个字符一字节
dmDeviceName(0 to 32 - 1) as byte
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(0 to 32 - 1) as byte
dmUnusedPadding As Integer
dmBitsPerPel As Integer
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFrequency As Long
End TypePrivate Type PRINTER_DEFAULTS
pDataType As Long
pDevMode As Long
DesiredAccess As Long
End Type
把有问题的定义替换了
可还是不能正确执行
另外
OpenPrinter(sPrnName, hPrinter, pd)
这个函数也是
最后一个参数,如果不设置为0&,也是不能正确执行
不知道这两个是不是一个问题,希望能得到解决!!!
但是它也允许为NULL,使用默认打印机设置
Call OpenPrinter(sPrnName, hPrinter, ByVal 0&)
问题主要出在API调用代码上得在具体环境慢慢调试