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Página principal>Developer Solutions>Examples>Visual Basic.NET>AutoCAD Drawings to PDF

Converting AutoCAD Drawings to PDF


'----------------------------------------------------------------------
' 1) Autodesk AutoCAD 2000 or above should be installed and activated on your PC.
'
' 2) Universal Document Converter 5.2 or above should be installed, too.
'
' 3) Open your project in Microsoft Visual Basic.NET.
'
' 4) In Visual Basic main menu press "Project->Add Reference...".
'
' 5) In "Add Reference" window go to "COM" tab and double click into 
'    "Universal Document Converter Type Library".
'----------------------------------------------------------------------

Private Sub PrintACADToPDF(ByVal strFilePath As String)

    ' Define constants
    Const acExtents = 1
    Const acScaleToFit = 0

    Dim nBACKGROUNDPLOT, nFILEDIA, nCMDDIA As Long

    Dim objUDC As UDC.IUDC
    Dim itfPrinter As UDC.IUDCPrinter
    Dim itfProfile As UDC.IProfile

    Dim objACADApp As Object
    Dim itfDrawing As Object
    Dim itfLayout As Object
    Dim itfActiveSpace As Object

    objUDC = New UDC.APIWrapper
    itfPrinter = objUDC.Printers("Universal Document Converter")
    itfProfile = itfPrinter.Profile

    ' Use Universal Document Converter API to change settings of converterd document
    itfProfile.Load("C:\Program Files\Universal Document Converter\UDC Profiles\Drawing to PDF.xml")

    itfProfile.OutputLocation.Mode = UDC.LocationModeID.LM_PREDEFINED
    itfProfile.OutputLocation.FolderPath = "C:\Out"

    itfProfile.PostProcessing.Mode = UDC.PostProcessingModeID.PP_OPEN_FOLDER

    ' Run AutoCAD as COM-server
    On Error Resume Next
    objACADApp = CreateObject("AutoCAD.Application")

    ' Open drawing from file
    itfDrawing = objACADApp.Documents.Open(strFilePath, False)

    ' Change AutoCAD preferences for scaling the drawing to page
    If itfDrawing.ActiveSpace = 0 Then

        itfActiveSpace = itfDrawing.PaperSpace
        itfLayout = itfActiveSpace.Layout

    Else

        itfActiveSpace = itfDrawing.ModelSpace
        itfLayout = itfActiveSpace.Layout

    End If

    itfLayout.PlotType = acExtents
    itfLayout.UseStandardScale = True
    itfLayout.StandardScale = acScaleToFit
    itfLayout.CenterPlot = True

    nBACKGROUNDPLOT = itfDrawing.GetVariable("BACKGROUNDPLOT")
    nFILEDIA = itfDrawing.GetVariable("FILEDIA")
    nCMDDIA = itfDrawing.GetVariable("CMDDIA")

    Call itfDrawing.SetVariable("BACKGROUNDPLOT", 0)
    Call itfDrawing.SetVariable("FILEDIA", 0)
    Call itfDrawing.SetVariable("CMDDIA", 0)

    itfDrawing.Plot.QuietErrorMode = True

    ' Plot the drawing
    Call itfDrawing.Plot.PlotToDevice("Universal Document Converter")

    ' Restore AutoCAD default preferences
    Call itfDrawing.SetVariable("BACKGROUNDPLOT", nBACKGROUNDPLOT)
    Call itfDrawing.SetVariable("FILEDIA", nFILEDIA)
    Call itfDrawing.SetVariable("CMDDIA", nCMDDIA)

    ' Close drawing
    Call itfDrawing.Close(False)
    itfDrawing = Nothing

    ' Close Autodesk AutoCAD
    Call objACADApp.Quit()
    objACADApp = Nothing

End Sub


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