#Copyright(c) 2021, Hồ Văn Chương

# @chuongmep, https://chuongmep.com/

import clr

clr.AddReference('acmgd')

clr.AddReference('acdbmgd')

clr.AddReference('accoremgd')

# Import references from AutoCAD

from Autodesk.AutoCAD.Runtime import *

from Autodesk.AutoCAD.ApplicationServices import *

from Autodesk.AutoCAD.EditorInput import *

from Autodesk.AutoCAD.DatabaseServices import *

from Autodesk.AutoCAD.Geometry import *

doc = Application.DocumentManager.MdiActiveDocument

ed = doc.Editor

db = doc.Database

# Write Code Below

with doc.LockDocument():

with doc.Database as db:

with db.TransactionManager.StartTransaction() as t:

bt = t.GetObject(db.BlockTableId,OpenMode.ForRead)

btr = t.GetObject(bt[BlockTableRecord.ModelSpace],OpenMode.ForWrite)

# Do action here

result = ed.GetSelection()

if(result.Status==PromptStatus.OK):

print("Selected Entity")

print(dir(result))

#There are selected entities

#Put your command using pickfirst set code here

else :

print("There are no selected entities ")

#Put your command code here

t.Commit()