打印的问题(选择打印机和预览指北针，图例)

<P>打印的时候，需要选择对话框，然后打印出pagelayout里面的元素。以下代码功能：实现调用系统的打印机，请问，
1，我怎么设置系统的Printer到AE中的IPrinter，调出打印功能。pagelayout的打印机属性为只读属性。
2，怎么样实现打印预览功能，我是采用CopytoCocusMap的例子，但不能Copy Pagelayout或map中的指北针，图例等元素。只能copy Map。
</P>
<P>///showprinter///////////
////waterblue///////////</P>
<P>Public Const CCHDEVICENAME = 32
Public Const CCHFORMNAME = 32
Public Const GMEM_MOVEABLE = ;H2
Public Const GMEM_ZEROINIT = ;H40
Public Const DM_DUPLEX = ;H1000;
Public Const DM_ORIENTATION = ;H1;</P>
<P>Public Type PRINTDLG_TYPE
    lStructSize As Long
    hwndOwner As Long
    hDevMode As Long
    hDevNames As Long
    hdc As Long
    Flags As Long
    nFromPage As Integer
    nToPage As Integer
    nMinPage As Integer
    nMaxPage As Integer
    nCopies As Integer
    hInstance As Long
    lCustData As Long
    lpfnPrintHook As Long
    lpfnSetupHook As Long
    lpPrintTemplateName As String
    lpSetupTemplateName As String
    hPrintTemplate As Long
    hSetupTemplate As Long
End Type
Public Type DEVNAMES_TYPE
    wDriverOffset As Integer
    wDeviceOffset As Integer
    wOutputOffset As Integer
    wDefault As Integer
    extra As String * 100
End Type
Public Type DEVMODE_TYPE
    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 Integer
    dmPelsWidth As Long
    dmPelsHeight As Long
    dmDisplayFlags As Long
    dmDisplayFrequency As Long
End Type
Public Declare Function PrintDialog Lib "comdlg32.dll" Alias "PrintDlgA" (pPrintdlg As PRINTDLG_TYPE) As Long
Public Declare Sub CopyMemory Lib "KERNEL32" Alias "RtlMoveMemory" (hpvDest As Any, hpvSource As Any, ByVal cbCopy As Long)
Public Declare Function GlobalLock Lib "KERNEL32" (ByVal hMem As Long) As Long
Public Declare Function GlobalUnlock Lib "KERNEL32" (ByVal hMem As Long) As Long
Public Declare Function GlobalAlloc Lib "KERNEL32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long
Public Declare Function GlobalFree Lib "KERNEL32" (ByVal hMem As Long) As Long</P>
<P>Public Sub showprinter(frmOwner As Form, Optional PrintFlags As Long)
  
    Dim PrintDlg As PRINTDLG_TYPE
    Dim DEVMODE As DEVMODE_TYPE
    Dim DevName As DEVNAMES_TYPE</P>
<P>    Dim lpDevMode As Long, lpDevName As Long
    Dim bReturn As Integer
    Dim objPrinter As printer, NewPrinterName As String</P>
<P>    ' Use PrintDialog to get the handle to a memory
    ' block with a DevMode and DevName structures</P>
<P>    PrintDlg.lStructSize = Len(PrintDlg)
    PrintDlg.hwndOwner = frmOwner.hwnd</P>
<P>    PrintDlg.Flags = PrintFlags
    On Error Resume Next
    'Set the current orientation and duplex setting
    DEVMODE.dmDeviceName = printer.DeviceName
    DEVMODE.dmSize = Len(DEVMODE)
    DEVMODE.dmFields = DM_ORIENTATION Or DM_DUPLEX
    DEVMODE.dmPaperWidth = printer.Width
    DEVMODE.dmOrientation = printer.Orientation
    DEVMODE.dmPaperSize = printer.PaperSize
    DEVMODE.dmDuplex = printer.Duplex
    On Error GoTo 0</P>
<P>    'Allocate memory for the initialization hDevMode structure
    'and copy the settings gathered above into this memory
    PrintDlg.hDevMode = GlobalAlloc(GMEM_MOVEABLE Or GMEM_ZEROINIT, Len(DEVMODE))
    lpDevMode = GlobalLock(PrintDlg.hDevMode)
    If lpDevMode > 0 Then
        CopyMemory ByVal lpDevMode, DEVMODE, Len(DEVMODE)
        bReturn = GlobalUnlock(PrintDlg.hDevMode)
    End If</P>
<P>    'Set the current driver, device, and port name strings
    With DevName
        .wDriverOffset = 8
        .wDeviceOffset = .wDriverOffset + 1 + Len(printer.DriverName)
        .wOutputOffset = .wDeviceOffset + 1 + Len(printer.Port)
        .wDefault = 0
    End With</P>
<P>    With printer
        DevName.extra = .DriverName ; Chr(0) ; .DeviceName ; Chr(0) ; .Port ; Chr(0)
    End With</P>
<P>    'Allocate memory for the initial hDevName structure
    'and copy the settings gathered above into this memory
    PrintDlg.hDevNames = GlobalAlloc(GMEM_MOVEABLE Or GMEM_ZEROINIT, Len(DevName))
    lpDevName = GlobalLock(PrintDlg.hDevNames)
    If lpDevName > 0 Then
        CopyMemory ByVal lpDevName, DevName, Len(DevName)
        bReturn = GlobalUnlock(lpDevName)
    End If</P>
<P>    'Call the print dialog up and let the user make changes
    If PrintDialog(PrintDlg) <> 0 Then</P>
<P>        'First get the DevName structure.
        lpDevName = GlobalLock(PrintDlg.hDevNames)
        CopyMemory DevName, ByVal lpDevName, 45
        bReturn = GlobalUnlock(lpDevName)
        GlobalFree PrintDlg.hDevNames</P>
<P>        'Next get the DevMode structure and set the printer
        'properties appropriately
        lpDevMode = GlobalLock(PrintDlg.hDevMode)
        CopyMemory DEVMODE, ByVal lpDevMode, Len(DEVMODE)
        bReturn = GlobalUnlock(PrintDlg.hDevMode)
        GlobalFree PrintDlg.hDevMode
        NewPrinterName = UCase$(Left(DEVMODE.dmDeviceName, InStr(DEVMODE.dmDeviceName, Chr$(0)) - 1))
        
        If printer.DeviceName <> NewPrinterName Then
            For Each objPrinter In Printers
                If InStr(1, objPrinter.DeviceName, NewPrinterName, vbTextCompare) > 0 Then
                    Set printer = objPrinter
                    Exit For
                    'set printer toolbar name at this point
                End If
            Next
        End If</P>
<P>        On Error Resume Next
        'Set printer object properties according to selections made
        'by user
        printer.Copies = DEVMODE.dmCopies
        printer.Duplex = DEVMODE.dmDuplex
        printer.Orientation = DEVMODE.dmOrientation</P>
<P>        printer.PaperSize = DEVMODE.dmPaperSize
        printer.PrintQuality = DEVMODE.dmPrintQuality
        printer.ColorMode = DEVMODE.dmColor
        printer.PaperBin = DEVMODE.dmDefaultSource
        </P>
<P>        On Error GoTo 0
    End If
End Sub
</P>

<P>你可以看看AO开发包里自带的mapbook例子</P><img src="images/post/smile/dvbbs/em02.gif" />

<P>调出的对话框，都只是基于desktop的</P><P>Private Sub cmdSetup_Click()
296:   If (Not m_pApp.IsDialogVisible(esriMxDlgPageSetup)) Then
    Dim bDialog As Boolean
    Dim pPrinter As IPrinter
    Dim pMxApp As IMxApplication
300:     m_pApp.ShowDialog esriMxDlgPageSetup, True
    
302:     m_pExportFrame.Visible = False
'    Me.Hide
304:     bDialog = True
    
306:     While bDialog = True
307:         bDialog = m_pApp.IsDialogVisible(esriMxDlgPageSetup)
308:         DoEvents
        
'            Sleep 1
    
312:     Wend
    
314:     Set pMxApp = m_pApp
315:     Set pPrinter = pMxApp.Printer
316:     frmPrint.lblName.Caption = pPrinter.Paper.PrinterName
317:     frmPrint.lblType.Caption = pPrinter.DriverName
318:     If TypeOf pPrinter Is IPsPrinter Then
319:       Me.chkPrintToFile.Enabled = True
320:     Else
321:       Me.chkPrintToFile.Value = 0
322:       Me.chkPrintToFile.Enabled = False
323:     End If
'    Me.Show
325:     m_pExportFrame.Visible = True
326:   End If
End Sub</P>