# Construct InfiniteLine Example (VB.NET)

This example shows how to construct an InfiniteLine.

    '--------------------------------------------------------------
    ' Preconditions:
    ' 1. Create a VB.NET Windows console project.
    ' 2. Copy and paste this example into the VB.NET IDE.
    ' 3. Add a reference to:
    '    install_dir\APISDK\tlb\DraftSight.Interop.dsAutomation.dll.
    ' 4. Start DraftSight and open a document.
    ' 5. Start debugging the project.
    '
    ' Postconditions: A message box pops up when a InfiniteLine is
    ' constructed in the drawing document.
    '----------------------------------------------------------------
    Imports DraftSight.Interop.dsAutomation
    Module Module1
        Sub Main()
            Dim dsApp As Application
            Dim dsDoc As Document
            Dim dsModel As Model
            Dim dsSketchManager As SketchManager
            Dim dsInfiniteLine As InfiniteLine
            Dim x1, y1, z1, x2, y2, z2 As Double

            '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 model space
                dsModel = dsDoc.GetModel()
                'Get Sketch Manager
                dsSketchManager = dsModel.GetSketchManager()
                'InfiniteLine parameters
                x1 = 0.0#
                y1 = 0.0#
                z1 = 0.0#
                x2 = 1.0#
                y2 = 5.0#
                z2 = 0.0#

                'Draw an InfiniteLine
                dsInfiniteLine = dsSketchManager.InsertInfiniteLine(x1, y1, z1, x2, y2, z2)

                If Not dsInfiniteLine Is Nothing Then
                    MsgBox("InfiniteLine was added to drawing.")
                End If

            Else
                MsgBox("There are no open documents in DraftSight.")
            End If

        End Sub
    End Module