printset.bas

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Attribute VB_Name = "PrintSet"
Option Explicit


Public Const PaperA2 As String = "A2 420 x 594 mm"
Public Const PaperA3 As String = "A3 297 x 420 mm"
Public Const PaperA4 As String = "A4 210 x 297 mm"
Public Const PaperA5 As String = "A5 148 x 210 mm"

Public Const PaperA2Height As Integer = 594
Public Const PaperA3Height As Integer = 420
Public Const PaperA4Height As Integer = 297
Public Const PaperA5Height As Integer = 210


Public Const PaperA2Width As Integer = 420
Public Const PaperA3Width As Integer = 297
Public Const PaperA4Width As Integer = 210
Public Const PaperA5Width As Integer = 148


Public Enum PrinterSetType
    pstPaperSize = 1
    pstOrient = 2
End Enum

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


Public Const DMPAPER_A2 = 66                    '  A2 420 x 594 mm
Public Const DMPAPER_A3 = 8                     '  A3 297 x 420 mm
Public Const DMPAPER_A4 = 9                     '  A4 210 x 297 mm
Public Const DMPAPER_A5 = 11                    '  A5 148 x 210 mm

Public Const DMPAPER_A4_TRANSVERSE = 55         '  A4 Transverse 210 x 297 mm


Public Const DM_IN_BUFFER As Long = 8
Public Const DM_OUT_BUFFER As Long = 2
Public Const DM_ORIENTATION As Long = &H1
Public Const DM_PAPERSIZE = &H2&

Public Const PRINTER_ACCESS_ADMINISTER As Long = &H4
Public Const PRINTER_ACCESS_USE As Long = &H8
Public Const STANDARD_RIGHTS_REQUIRED As Long = &HF0000
Public Const PRINTER_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED Or _
    PRINTER_ACCESS_ADMINISTER Or PRINTER_ACCESS_USE)

Public Declare Sub CopyMemory Lib "kernel32" Alias _
    "RtlMoveMemory" _
    (hpvDest As Any, hpvSource As Any, ByVal _
    cbCopy As Long)

Public Declare Function OpenPrinter Lib "winspool.drv" Alias _
        "OpenPrinterA" (ByVal pPrinterName As String, phPrinter As _
        Long, pDefault As Any) As Long

Public Declare Function ClosePrinter Lib "winspool.drv" _
        (ByVal hPrinter As Long) As Long

Public 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

Public Function SetDefaultPrinter(ByVal PaperSize As Integer, _
                            ByVal eOrientation As PrinterOrientationConstants) 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
    
    On Error Resume Next

    ' 获取默认打印机的设备名称
    sPrnName = Printer.DeviceName
    '由于要调用SetPrinter，所以
    '如果是在NT下就要求PRINTER_ALL_ACCESS
    pd.DesiredAccess = PRINTER_ALL_ACCESS

    '获取打印机句柄
    If OpenPrinter(sPrnName, hPrinter, pd) Then
    ' 获取PRINTER_INFO_2结构要求的字节数

        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))
        With dm
            ' 设置新的走向
            .dmOrientation = eOrientation
                '.dmFields = DM_ORIENTATION
                .dmPaperSize = PaperSize
                '将纸张大小设为
                .dmFields = DM_ORIENTATION + DM_PAPERSIZE
                '必须，否则无法设置纸张大小
         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)
           SetDefaultPrinter = True
    Else
        SetDefaultPrinter = False
    End If
  
End Function

'Public Function SetPrinter() As Boolean

'End Function