IFC文件解析，有C# C++ VB.Net

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using IfcEngine;

namespace ifceditor
{
    public partial class Form1 : Form
    {
        private Int32 model;
        private Entity[] myEntities;
        private List myInstances = new List（）;

        public Form1（）
        {
            model = 0;
            InitializeComponent（）;
            textBoxFileName.Text = AppDomain.CurrentDomain.baseDirectory + “myFile.ifc“;
        }

        private void button1_Click（object sender EventArgs e）
        {
            string fileName = textBoxFileName.Text;

            if （model != 0）
            {
                IfcEngine.x86.sdaiCloseModel（model）;
            }

            model = IfcEngine.x86.sdaiOpenModelBN（0 fileName “IFC2X3_TC1.exp“）;
            if （model != 0）
            {
                IntPtr outputValue = IntPtr.Zero;
                IfcEngine.x86.GetSPFFHeaderItem（model 9 0 IfcEngine.x86.sdaiSTRING out outputValue）;
                string s = Marshal.PtrToStringAnsi（outputValue）;
                if （s.Contains（“IFC2“） == false）
                {
                    IfcEngine.x86.sdaiCloseModel（model）;
                    model = 0;
                    if （s.Contains（“IFC4“） == true）
                    {
                        model = IfcEngine.x86.sdaiOpenModelBN（0 fileName “IFC4.exp“）;
                    }
                }
            }

            treeViewLP.Nodes.Clear（）;
            if （model != 0）
            {
                Int32 cnt = IfcEngine.x86.engiGetEntityCount（model）
                      i = 0;

                myEntities = new Entity[cnt];
                while （i < cnt） {
                    myEntities[i] = new Entity（IfcEngine.x86.engiGetEntityElement（model i））;
                    myEntities[i].attributeCnt = IfcEngine.x86.engiGetEntityNoArguments（myEntities[i].ifcEntity）;
                    myEntities[i].instanceCnt = IfcEngine.x86.sdaiGetMemberCount（IfcEngine.x86.sdaiGetEntityExtent（model myEntities[i].ifcEntity））;
                    i++;
                }

                while （i != 0） {
                    i--;
                    Int32 ifcParentEntity = IfcEngine.x86.engiGetEntityParent（myEntities[i].ifcEntity）;
                    if （ifcParentEntity != 0）
                    {
                        Int32 j = 0;
                        while （j < cnt）
                        {
                            if （ifcParentEntity == myEntities[j].ifcEntity）
                            {
                                if （myEntities[j].child != null）
                                {
                                    myEntities[i].next = myEntities[j].child;
                                }
                           

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2015-10-09 21:17  IFCEngineDLLv1.04 （build 4000+）in
     目录           0  2015-10-11 09:36  IFCEngineDLLv1.04 （build 4000+）in32bit
     文件      117248  2015-10-09 21:46  IFCEngineDLLv1.04 （build 4000+）in32bitchkDisk4Ifc-32bit.exe
     文件     1998168  2014-03-26 02:03  IFCEngineDLLv1.04 （build 4000+）in32bitd3dx9_43.dll
     文件       12419  2015-08-10 10:08  IFCEngineDLLv1.04 （build 4000+）in32bitexample.ifc
     文件      549759  2015-08-10 10:08  IFCEngineDLLv1.04 （build 4000+）in32bitexample.ifcxml
     文件     1764864  2015-10-09 21:47  IFCEngineDLLv1.04 （build 4000+）in32bitHelloHouse-C++_32bit.exe
     文件      132608  2015-10-09 22:01  IFCEngineDLLv1.04 （build 4000+）in32bitHelloWall-32bit.exe
     文件      138240  2015-10-09 22:01  IFCEngineDLLv1.04 （build 4000+）in32bitHelloWall-32bit-Unicode.exe
     文件       87552  2015-10-11 09:15  IFCEngineDLLv1.04 （build 4000+）in32bitHelloWall-C#_32bit.exe
     文件      266688  2014-03-26 02:03  IFCEngineDLLv1.04 （build 4000+）in32bitIFC2X3_TC1.exp
     文件        3624  2014-07-12 12:09  IFCEngineDLLv1.04 （build 4000+）in32bitIFC2X3-Settings.xml
     文件      387456  2014-03-26 02:03  IFCEngineDLLv1.04 （build 4000+）in32bitIFC4.exp
     文件        6630  2014-05-29 14:09  IFCEngineDLLv1.04 （build 4000+）in32bitIFC4-Settings.xml
     文件       29184  2015-10-11 08:00  IFCEngineDLLv1.04 （build 4000+）in32bitIfcEditor-C#_32bit.exe
     文件      124416  2015-10-09 21:53  IFCEngineDLLv1.04 （build 4000+）in32bitifceditor-C++_Unicode_32bit.exe
     文件      796160  2015-10-09 14:15  IFCEngineDLLv1.04 （build 4000+）in32bitifcengine.dll
     文件       66048  2015-10-11 09:27  IFCEngineDLLv1.04 （build 4000+）in32bitIFCViewer-C#_32bit.exe
     文件      118272  2015-10-09 21:39  IFCEngineDLLv1.04 （build 4000+）in32bitifcviewer-C++_Unicode_32bit.exe
     文件       62464  2015-10-11 07:56  IFCEngineDLLv1.04 （build 4000+）in32bitIFCViewer-VB.NET_32bit.exe
     文件        4769  2014-03-28 21:55  IFCEngineDLLv1.04 （build 4000+）in32bitinput.ifc
     文件     4342600  2014-03-26 02:03  IFCEngineDLLv1.04 （build 4000+）in32bitmfc100.dll
     文件      768848  2014-03-26 02:03  IFCEngineDLLv1.04 （build 4000+）in32bitmsvcr100.dll
     文件       36963  2015-03-13 18:41  IFCEngineDLLv1.04 （build 4000+）in32bitmyFile.ifc
     文件       86016  2015-10-09 21:38  IFCEngineDLLv1.04 （build 4000+）in32bitsimpleOpenIFCFile_32bit.exe
     目录           0  2015-10-11 09:35  IFCEngineDLLv1.04 （build 4000+）in64bit
     文件      125952  2015-10-09 21:46  IFCEngineDLLv1.04 （build 4000+）in64bitchkDisk4Ifc-64bit.exe
     文件     2401112  2014-03-26 02:03  IFCEngineDLLv1.04 （build 4000+）in64bitD3DX9_43.dll
     文件       12419  2015-08-10 10:11  IFCEngineDLLv1.04 （build 4000+）in64bitexample.ifc
     文件       58967  2015-08-10 10:11  IFCEngineDLLv1.04 （build 4000+）in64bitexample.ifcxml
     文件      151040  2015-10-09 22:01  IFCEngineDLLv1.04 （build 4000+）in64bitHelloWall-64bit.exe
............此处省略1135个文件信息