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    以下均为console application，在vs2005中编译通过！需要引用Autodesk的Object DBX 或最新的Real DWG 的SDK。
    如有其他的问题，请留言！

    列举dwg文件中的所有的blcok的name:
    C#实现:

    1. using System;
    2. using System.Collections;
    3. using System.Collections.Generic;
    4. using System.Text;
    5. using System.Diagnostics;
    6. using System.Reflection;
    7. using System.Runtime;
    8. using System.Windows.Forms;
    9. using System.IO;
    10. using System.ComponentModel;
    11. using System.Data;
    12. using System.Drawing;
    15. using Autodesk.AutoCAD.DatabaseServices;
    16. using System.Runtime.InteropServices;
    17. using Autodesk.AutoCAD.Runtime;
    18. using Autodesk.AutoCAD.Geometry;
    19. [assembly: SecuredApplication(@"license")]
    21. namespace GetFrameOfRealDwg
    22. {
    23.     class MyHostApplicationServices : Autodesk.AutoCAD.DatabaseServices.HostApplicationServices
    24.     {
    25.         public override System.String FindFile(System.String fileName,
    26.                                                 Autodesk.AutoCAD.DatabaseServices.Database database,
    27.                                                  Autodesk.AutoCAD.DatabaseServices.FindFileHint hint
    28.                                                  )
    29.         {
    31.             return string.Empty;
    32.         }
    33.         static public ArrayList GetBlockNames(Database db)
    34.         {
    35.             ArrayList array = new ArrayList();
    36.             Transaction tran = db.TransactionManager.StartTransaction();
    37.             try
    38.             {
    39.                 BlockTable bt = (BlockTable)tran.GetObject(db.BlockTableId, OpenMode.ForWrite);
    40.                 foreach (ObjectId recordid in bt)
    41.                 {
    42.                     BlockTableRecord record = (BlockTableRecord)tran.GetObject(recordid, OpenMode.ForRead);
    43.                     array.Add(record.Name);
    44.                 }
    45.             }
    46.             catch
    47.             {
    48.             }
    49.             finally
    50.             {
    51.                 tran.Dispose();
    52.             }
    53.             return array;
    54.         }
    55.         static void Main(string[] args)
    56.         {
    59.             MyHostApplicationServices myserver = new MyHostApplicationServices();
    60.             int lcid = 0x00001033; // English
    61.             RuntimeSystem.Initialize(myserver, lcid);
    62.             Database Db = new Database(false, true);
    63.             Db.ReadDwgFile(@"filepath", FileShare.Read, false, "");
    64.             ArrayList ar = GetBlockNames(Db);
    65.             foreach (string str in ar)
    66.             {
    67.                 System.Console.WriteLine(str);
    68.             }
    70.             RuntimeSystem.Terminate();
    71.             System.Console.WriteLine();
    73.         }
    74.     }
    75. }

    注意: 只需ref :acdbmgd.dll
    必须实现HostApplicationServices及她的findfile().
    生成的dll必须使用绑定工具绑定.
    (license是很贵的啊,可以到autodesk公司主页)

    c++实现:

    1. 以下均为console application，在vs2005中编译通过！需要引用Autodesk的Object DBX 或最新的Real DWG 的SDK。
    2. 如有其他的问题，请留言！
    4. 列举dwg文件中的所有的blcok的name:
    5. C#实现:
    7. using System;
    8. using System.Collections;
    9. using System.Collections.Generic;
    10. using System.Text;
    11. using System.Diagnostics;
    12. using System.Reflection;
    13. using System.Runtime;
    14. using System.Windows.Forms;
    15. using System.IO;
    16. using System.ComponentModel;
    17. using System.Data;
    18. using System.Drawing;
    21. using Autodesk.AutoCAD.DatabaseServices;
    22. using System.Runtime.InteropServices;
    23. using Autodesk.AutoCAD.Runtime;
    24. using Autodesk.AutoCAD.Geometry;
    29. [assembly: SecuredApplication(
    30. @"license")]
    32. namespace GetFrameOfRealDwg
    33. {
    34.     class MyHostApplicationServices : Autodesk.AutoCAD.DatabaseServices.HostApplicationServices
    35.     {
    36.         public override System.String FindFile(System.String fileName,
    37.                                                 Autodesk.AutoCAD.DatabaseServices.Database database,
    38.                                                  Autodesk.AutoCAD.DatabaseServices.FindFileHint hint
    39.                                                  )
    40.         {
    42.             return string.Empty;
    43.         }
    44.         static public ArrayList GetBlockNames(Database db)
    45.         {
    46.             ArrayList array = new ArrayList();
    47.             Transaction tran = db.TransactionManager.StartTransaction();
    48.             try
    49.             {
    50.                 BlockTable bt = (BlockTable)tran.GetObject(db.BlockTableId, OpenMode.ForWrite);
    51.                 foreach (ObjectId recordid in bt)
    52.                 {
    53.                     BlockTableRecord record = (BlockTableRecord)tran.GetObject(recordid, OpenMode.ForRead);
    54.                     array.Add(record.Name);
    55.                 }
    56.             }
    57.             catch
    58.             {
    59.             }
    60.             finally
    61.             {
    62.                 tran.Dispose();
    63.             }
    64.             return array;
    65.         }
    66.         static void Main(string[] args)
    67.         {
    70.             MyHostApplicationServices myserver = new MyHostApplicationServices();
    71.             int lcid = 0x00001033; // English
    72.             RuntimeSystem.Initialize(myserver, lcid);
    73.             Database Db = new Database(false, true);
    74.             Db.ReadDwgFile(@"filepath", FileShare.Read, false, "");
    75.             ArrayList ar = GetBlockNames(Db);
    76.             foreach (string str in ar)
    77.             {
    78.                 System.Console.WriteLine(str);
    79.             }
    81.             RuntimeSystem.Terminate();
    82.             System.Console.WriteLine();
    84.         }
    85.     }
    86. }
    89. 注意:  只需ref  :acdbmgd.dll 
    90.            必须实现HostApplicationServices及她的findfile().
    91.            生成的dll必须使用绑定工具绑定.
    92.           (license是很贵的啊,可以到autodesk公司主页)
    94. c++实现:
    96. #pragma once
    97. #define _CRT_SECURE_NO_DEPRECATE
    99. #include "windows.h"
    100. #include "dbsymtb.h"
    101. #include "dbents.h"
    102. #include <stdio.h>
    103. #include <string.h>
    104. #include "tchar.h"
    105. #include <string>
    106. #include <atlconv.h>
    107. #include <iostream>
    109. #include "dbapserv.h"
    110. using namespace std;
    111. class CreatentHostApp : public AcDbHostApplicationServices
    112. {
    113.     Acad::ErrorStatus findFile(TCHAR* pcFullPathOut, int nBufferLength,
    114.                          const TCHAR* pcFilename, AcDbDatabase* pDb = NULL,
    115.                          AcDbHostApplicationServices::FindFileHint = kDefault);
    117.     // These two functions return the full path to the root folder where roamable/local 
    118.     // customizable files were installed. Note that the user may have reconfigured 
    119.     // the location of some the customizable files using the Options Dialog 
    120.     // therefore these functions should not be used to locate customizable files. 
    121.     // To locate customizable files either use the findFile function or the 
    122.     // appropriate system variable for the given file type. 
    123.     //
    124.     Acad::ErrorStatus getRoamableRootFolder(const TCHAR*& folder);
    125.     Acad::ErrorStatus getLocalRootFolder(const TCHAR*& folder);
    126.     // make sure you implement getAlternateFontName. In case your findFile implementation
    127.     // fails to find a font you should return a font name here that is guaranteed to exist.
    128.     virtual TCHAR * getAlternateFontName() const
    129.     {
    130.         return _T("txt.shx"); //findFile will be called again with this name
    131.     }
    132. };
    134. // Return the Install directory for customizable files
    135. Acad::ErrorStatus 
    136. CreatentHostApp::getRoamableRootFolder(const TCHAR*& folder)
    137. {
    138.     Acad::ErrorStatus ret = Acad::eOk;
    139.     static TCHAR buf[MAX_PATH] = _T("\0"); //MDI SAFE
    140.     if (buf[0]==0)
    141.         if (GetModuleFileName(NULL, buf, MAX_PATH) != 0)
    142.             ret = Acad::eRegistryAccessError;
    143.     folder = buf;
    144.     return ret;
    145. }
    147. // Return the Install directory for customizable files
    148. Acad::ErrorStatus 
    149. CreatentHostApp::getLocalRootFolder(const TCHAR*& folder)
    150. {
    151.     Acad::ErrorStatus ret = Acad::eOk;
    152.     static TCHAR buf[MAX_PATH] = _T("\0"); //MDI SAFE
    153.     if (buf[0]==0)
    154.         if (GetModuleFileName(NULL, buf, MAX_PATH) != 0)
    155.             ret = Acad::eRegistryAccessError;
    156.     folder = buf;
    157.     return ret;
    158. }
    161. Acad::ErrorStatus 
    162. CreatentHostApp::findFile(TCHAR* pcFullPathOut, int nBufferLength,
    163.     const TCHAR* pcFilename, AcDbDatabase* pDb, 
    164.     AcDbHostApplicationServices::FindFileHint hint)
    165. {
    166.     TCHAR pExtension[5];
    167.     switch (hint)
    168.     {
    169.         case kCompiledShapeFile:
    170.             _tcscpy(pExtension, _T(".shx"));
    171.             break;
    172.         case kTrueTypeFontFile:
    173.             _tcscpy(pExtension, _T(".ttf"));
    174.             break;
    175.         case kPatternFile:
    176.             _tcscpy(pExtension, _T(".pat"));
    177.             break;
    178.         case kARXApplication:
    179.             _tcscpy(pExtension, _T(".dbx"));
    180.             break;
    181.         case kFontMapFile:
    182.             _tcscpy(pExtension, _T(".fmp"));
    183.             break;
    184.         case kXRefDrawing:
    185.             _tcscpy(pExtension, _T(".dwg"));
    186.             break;
    187.         case kFontFile:                // Fall through.  These could have
    188.         case kEmbeddedImageFile:       // various extensions
    189.         default:
    190.             pExtension[0] = _T('\0');
    191.             break;
    192.     }
    193.     TCHAR* filePart;
    194.     DWORD result;
    195.     result = SearchPath(NULL, pcFilename, pExtension, nBufferLength, 
    196.                         pcFullPathOut, &filePart);
    197.     if (result && result < (DWORD)nBufferLength)
    198.         return Acad::eOk;
    199.     else
    200.         return Acad::eFileNotFound;
    201. }
    202. void dumpBlockTable(AcDbBlockTable *pBlockTable)
    203. {
    205.     AcDbBlockTableIterator *pIter;
    206.     AcDbBlockTableRecord *pRecord;
    207.     pBlockTable->newIterator(pIter);   
    208.     while (!pIter->done())
    209.     {
    210.         if (pIter->getRecord(pRecord, AcDb::kForRead) == Acad::eOk)
    211.         {
    212.             TCHAR *pName;            
    213.             if (pRecord->getName(pName) == Acad::eOk)
    214.             {  
    215.                 cout<<pName<<endl;
    216.                 printf("%s",pName);
    217.             }          
    218.             pRecord->close();
    219.         }
    220.         pIter->step();
    221.     }
    222.     delete pIter;
    224. }
    225. CreatentHostApp gCreatentHostApp;
    227. int _tmain(int argc, TCHAR *argv[])
    228. {
    229.     acdbSetHostApplicationServices(&gCreatentHostApp);
    230.     long lcid = 0x00000409; // English
    231.     acdbValidateSetup(lcid);
    233.     // Create an AcDbDatabase and initialize its tables.
    234.     AcDbDatabase *pDb = new AcDbDatabase(Adesk::kFalse);
    235.     if (pDb == NULL)
    236.         return 0;
    237.     pDb->readDwgFile(_T("C:\\Documents and Settings\\xhzhu\\Desktop\\Test Template Explorer 1.1.4.46 for XUPU\\02\\aaaaaa.dwg"));
    239.     acdbHostApplicationServices()->setWorkingDatabase(pDb);
    241.     // Open the block table.
    242.     AcDbBlockTable* pBlockTable;
    243.     if (pDb->getBlockTable(pBlockTable, AcDb::kForRead) == Acad::eOk)
    244.     {      
    245.         dumpBlockTable(pBlockTable);  //get name list
    246.         // Close the block table.
    247.         pBlockTable->close();
    248.     } 
    250.     delete pDb;
    252.     acdbCleanUp();
    253.     return 0;
    254. }
    257. 注意:c++的是不需要绑定的,必须实现AcDbHostApplicationServices,也的包含头文件.

    注意:c++的是不需要绑定的,必须实现AcDbHostApplicationServices,也的包含头文件.