How does AutoCAD develop plug-ins through C#?

0 Preface

  AutoCAD is a computer-aided design software widely used in engineering design and construction industry. By using C# language for plug-in development, the functions of AutoCAD can be expanded to meet customized requirements. The plug-in can realize automatic drawing, data processing, batch operation and other functions to improve work efficiency and accuracy. In this article, the AutoCAD plug-in development using C# language is summarized and recorded.

1. Development tool preparation

  (1) Install Visual Studio
  Search for the "Visual Studio2022" installation package in Baidu and other browsers, and then install it.

  (2) Install AutoCAD2022
  Search "AutoCAD2022" installation package in Baidu and other browsers, and then install it.

2. VS (C#) to create plug-ins

  (1) New project
  

  (2) Reference the link library of AutoCAD2022
  

"acmgd.dll" "accoremgd.dll" "AcCui.dll" "acdbmgd.dll"

  (3) Set up the link library
  

  (4) Add a namespace
  

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;  
using Autodesk.AutoCAD.EditorInput;  
using Autodesk.AutoCAD.Runtime;  
using Autodesk.AutoCAD.Colors;

  (5) Set the external startup program
  

  (6) Write plug-in functions
  

[CommandMethod("TestDemo")] //指令名称
public void TestDemo()  
{
    
      
    // 声明命令行对象  
    Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;  
    // 向命令行输出一段文字  
    ed.WriteMessage("hello, AutoCAD!");  
}

3. Using plugins

  

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