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using Autodesk.AutoCAD.Runtime;using Autodesk.AutoCAD.ApplicationServices;using Autodesk.AutoCAD.DatabaseServices;using Autodesk.AutoCAD.Geometry; [CommandMethod("CreateText")]public static void CreateText(){ // Get the current document and database Document acDoc = Application.DocumentManager.MdiActiveDocument; Database acCurDb = acDoc.Database; // Start a transaction using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction()) { // Open the Block table for read BlockTable acBlkTbl; acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,                                   OpenMode.ForRead) as BlockTable; // Open the Block table record Model space for write BlockTableRecord acBlkTblRec; acBlkTblRec = acTrans.GetObject(acBlkTbl[BlockTableRecord.ModelSpace],                                      OpenMode.ForWrite) as BlockTableRecord; // Create a single-line text object DBText acText = new DBText(); acText.SetDatabaseDefaults(); acText.Position = new Point3d(2, 2, 0); acText.Height = 0.5; acText.TextString = "Hello, World."; acBlkTblRec.AppendEntity(acText); acTrans.AddNewlyCreatedDBObject(acText, true); // Save the changes and dispose of the transaction acTrans.Commit(); }}