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Get and Set Document Settings Example (VB.NET)

This example shows how to get and set document settings.

'--------------------------------------------------------------
'Preconditions:
' 1. Create a VB.NET Windows console project.
' 2. Copy and paste this project into the VB.NET IDE.
' 3. Add a reference to:
'    install_dir\APISDK\tlb\DraftSight.Interop.dsAutomation.
' 4. Start DraftSight and open a drawing.
' 5. Start debugging the project.
'
'Postconditions: Message boxes pop up verifying that
'document properties are reset. Read the text in each
'message box before clicking OK to close it.
'----------------------------------------------------------------
Imports System.IO
Imports DraftSight.Interop.dsAutomation
Module Module1
    Dim dsApp As Application
    Dim dsDoc As Document
    Dim dsDocName As String
    Sub Main()
        'Connect to DraftSight
        dsApp = GetObject(, "DraftSight.Application")
	dsApp.AbortRunningCommand() ' abort any command currently running in DraftSight to avoid nested commands
        'Get active document
        dsDoc = dsApp.GetActiveDocument()
        If Not dsDoc Is Nothing Then
            'Get and set document settings
            GetSetDocSettings(dsDoc)
        Else
            MsgBox("There are no open documents in DraftSight.")
        End If
    End Sub
    Sub GetSetDocSettings(ByVal dsDoc As Document)
        'Set and get dimension scale property of document
        TestDimensionScale(dsDoc)
        'Set and get angle unit expression for document
        TestAngleUnitExpression(dsDoc)
        'Set and get base angle for document
        TestBaseAngle(dsDoc)
        'Set and get length unit expression for document
        TestLengthUnitExpression(dsDoc)
        'Set and get scale unit of the document
        TestScaleUnit(dsDoc)
        'Check if document is active
        If dsDoc.IsActive Then
            MsgBox(dsDoc.GetPathName & " document is currently active in DraftSight.")
        Else
            MsgBox(dsDoc.GetPathName & " document is not currently active in DraftSight.")
        End If
        'Check if document is dirty
        If dsDoc.IsDirty Then
            MsgBox(dsDoc.GetPathName & " document was modified since opened.")
        Else
            MsgBox(dsDoc.GetPathName & " document was not modified since opened.")
        End If
    End Sub
    Sub TestDimensionScale(ByVal dsDoc As Document)
        Dim dimScale As Double
        Dim precision As Double
        precision = 0.000000001
        'Set IDocument.DimensionScale property
        dimScale = 0.1
        dsDoc.DimensionScale = dimScale
        If Math.Abs(dimScale - dsDoc.DimensionScale) > precision Then
            MsgBox("Failed to set dimension scale property of document to " & dimScale)
        End If
    End Sub
    Sub TestAngleUnitExpression(ByVal dsDoc As Document)
        Dim newAngType As dsAngleType_e
        Dim getAngType As dsAngleType_e
        Dim newUnitPrecision As dsUnitPrecision_e
        Dim getUnitPrecision As dsUnitPrecision_e
        'Set IDocument.SetAngleUnitExpression for document
        newAngType = dsAngleType_e.dsAngleType_Radians
        newUnitPrecision = dsUnitPrecision_e.dsUnitPrecision_8
        dsDoc.SetAngleUnitExpression(newAngType, newUnitPrecision)
        'Get IDocument.GetAngleUnitExpression for document
        dsDoc.GetAngleUnitExpression(getAngType, getUnitPrecision)
        If getAngType = newAngType Then
            MsgBox("Set angle type property of document to " & newAngType & ".")
        End If
        If getUnitPrecision = newUnitPrecision Then
            MsgBox("Set unit precision property of document to " & newUnitPrecision & ".")
        End If
    End Sub
    Sub TestBaseAngle(ByVal dsDoc As Document)
        Dim newBaseAngle As Double
        Dim newClockwise As Boolean
        Dim baseAngle As Double
        Dim clockwise As Boolean
        Dim precision As Double
        precision = 0.000000001
        'Set IDocument.SetBaseAngle property for document
        newBaseAngle = 0.0#
        newClockwise = True
        dsDoc.SetBaseAngle(newBaseAngle, newClockwise)
        'Get IDocument.GetBaseAngle for document
        dsDoc.GetBaseAngle(baseAngle, clockwise)
        If Math.Abs(newBaseAngle - baseAngle) < precision Then
            MsgBox("Set base angle property of document to " & newBaseAngle & ".")
        End If
        If newClockwise = clockwise Then
            MsgBox("Set clockwise property of document.")
        End If
    End Sub
    Sub TestLengthUnitExpression(ByVal dsDoc As Document)
        Dim newLengthType As dsLengthType_e
        Dim newUnitPrecision As dsUnitPrecision_e
        Dim lengthType As dsLengthType_e
        Dim unitPrecision As dsUnitPrecision_e
        'Set IDocument.SetLengthUnitExpression for document
        newLengthType = dsLengthType_e.dsLengthType_Engineering
        newUnitPrecision = dsUnitPrecision_e.dsUnitPrecision_5
        dsDoc.SetLengthUnitExpression(newLengthType, newUnitPrecision)
        'Get IDocument.GetLengthUnitExpression for document and
        'verify if a value is correct
        dsDoc.GetLengthUnitExpression(lengthType, unitPrecision)
        If newLengthType = lengthType Then
            MsgBox("Set length type property of document to " & newLengthType & ".")
        End If
        If newUnitPrecision = unitPrecision Then
            MsgBox("Set unit precision property of document to " & newUnitPrecision & ".")
        End If
    End Sub
    Sub TestScaleUnit(ByVal dsDoc As Document)
        Dim newScaleUnit As dsScaleUnit_e
        Dim scaleUnit As dsScaleUnit_e
        'Set IDocument.ScaleUnit property for document
        newScaleUnit = dsScaleUnit_e.dsScaleUnit_Yards
        dsDoc.scaleUnit = newScaleUnit
        'Get IDocument.ScaleUnit property for document and verify if a value is correct
        scaleUnit = dsDoc.scaleUnit
        If scaleUnit = newScaleUnit Then
            MsgBox("Set scale unit property of document to " & newScaleUnit & ".")
        End If
    End Sub
End Module






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