Extend Sketch Entity Example (C#)

//-------------------------------------------------------------------
// Preconditions: Open a part document.
//
// Postconditions:
// 1. A new sketch is inserted.
// 2. Two non-parallel lines are created.
// 3. The first line is extended to meet the second line.
//-------------------------------------------------------------------
using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
namespace ExtendEntity_CSharp.csproj
{
    partial class SolidWorksMacro
    {

        ModelDoc2 swModel;
        ModelDocExtension swModelDocExt;
        SketchManager swSketchMgr;

        bool boolstatus;

        public void Main()
        {
            swModel = (ModelDoc2)swApp.ActiveDoc;
            swModelDocExt = swModel.Extension;
            swSketchMgr = swModel.SketchManager;

            swSketchMgr.InsertSketch(false);

            // Create two non-parallel lines
            swSketchMgr.CreateLine(-0.5, 0.88, 0.0, -0.21, -0.13, 0.0);
            swSketchMgr.CreateLine(-0.75, -1.128, 0.0, 0.41, -1.128, 0.0);

            // Set the selection mode to default
            swModel.SetPickMode();

            // Select the sketch line to extend
            boolstatus = swModelDocExt.SelectByID2("Line1", "SKETCHSEGMENT", 0.0, 0.0, 0.0, false, 0, null, 0);

            // Extend the selected sketch line to meet the second line
            boolstatus = swSketchMgr.SketchExtend(0.0, 0.0, 0.0);

            swSketchMgr.InsertSketch(true);

        }


        public SldWorks swApp;

    }
}