关于delphi调用C#dll的问题

[liermin226]

各位大家好，按照网上的所能查到的资料，小的已经注册SystemIinfo.dll(c#编写)，然后得到得到一个SystemInfo.tlb的文件，并在delphi里create unit成为SystemInfo_Tlb.pas文件。
在C#程序里面（SystemInfo工程中）有:
namespace CurrentSystemInfo
{
/// <summary>
/// 系统信息类 - 获取CPU、内存、磁盘、进程信息
/// </summary>
public class SystemInfo
{
............................
............................

public static List<NetInfo> GetNetInfoByType(NetType nettype)
{
//定义范型
List<NetInfo> ninfos = new List<NetInfo>();

//定义，获取 MIB_IFTABLE 对象
MIB_IFTABLE tbl = GetAllIfTable();

//如果成功
if (tbl != null)
{
tbl.Deserialize();
for (int i = 0; i < tbl.Table.Length; i++)
{
NetInfo ninfo = GetNetInfo(tbl.Table[i]);
if (ninfo.Type == nettype)
{
ninfos.Add(ninfo);
}
}
}

return ninfos;
}
#endregion

#region 获取指定物理地址的网络信息
/// <summary>
/// 获取指定物理地址的网络信息
/// </summary>
/// <param name="MACAddress">物理地址</param>
/// <returns>NetInfo 网络信息范型</returns>
public static NetInfo GetNetInfoByMac(string MACAddress)
{
//定义，获取 MIB_IFTABLE 对象
MIB_IFTABLE tbl = GetAllIfTable();

//如果成功
if (tbl != null)
{
tbl.Deserialize();
for (int i = 0; i < tbl.Table.Length; i++)
{
NetInfo ninfo = GetNetInfo(tbl.Table[i]);
if (string.Compare(MACAddress, ninfo.PhysAddr, true) == 0)
{
return ninfo;
}
}
}

return null;
}
#endregion

#region 获取指定 ip 地址的网络信息
/// <summary>
/// 获取指定 ip 地址的网络信息
/// </summary>
/// <param name="IPAddress">ip 地址</param>
/// <returns>NetInfo 网络信息范型</returns>
public static NetInfo GetNetInfoByIp(string IPAddress)
{
string MACAddress = GetMacByIp(IPAddress);
if (string.IsNullOrEmpty(MACAddress))
{
return null;
}
else
{
return GetNetInfoByMac(MACAddress);


private static NetInfo GetNetInfo(MIB_IFROW row) //网卡信息，流量。。。
{
NetInfo ninfo = new NetInfo();
ninfo.Index = row.dwIndex;
//ninfo.Name = Encoding.ASCII.GetString(row.bDescr, 0, (int)row.dwDescrLen);
ninfo.Name = Encoding.GetEncoding("gb2312").GetString(row.bDescr, 0, (int)row.dwDescrLen);
ninfo.PhysAddr = GetPhysAddr(row.bPhysAddr, (int)row.dwPhysAddrLen);
ninfo.Type = (NetType)row.dwType;
ninfo.Status = (NetState)row.dwOperStatus;
ninfo.Speed = row.dwSpeed;
ninfo.InErrors = row.dwInErrors;
ninfo.InOctets = row.dwInOctets;
ninfo.InUnknownProtos = row.dwInUnknownProtos;
ninfo.OutErrors = row.dwOutErrors;
ninfo.OutOctets = row.dwOutOctets;
return ninfo;
}
..............................
..............................
}

我想在delphi里面获取网卡的流出和流入量，手头和网上也没查到什么资料，弄了快一周了，实在不知道怎么解决，看有没有会的牛人给指点一下怎么调用，本人分数不多，愿全部奉上，以表感谢。
SystemInfo_tlb.pas里面：

const
// TypeLibrary Major and minor versions
SystemInfoMajorVersion = 1;
SystemInfoMinorVersion = 0;

LIBID_SystemInfo: TGUID = '{89B8B129-92A6-4426-8583-D972696A2896}';

IID__IpInfo: TGUID = '{6E2ADA9F-F4C0-3CCB-8A41-92572A227ED0}';
IID__SystemInfo: TGUID = '{848F3880-E5FE-301B-A824-7479E020304B}';
IID__MarshallingMethods: TGUID = '{0881207F-DD1F-3568-804F-3CB05AC21688}';
IID__CustomMarshalAsAttribute: TGUID = '{6AA2196F-0FDF-361D-A110-20B03BB4DB92}';
IID__NetInfo: TGUID = '{843369FE-A608-37DF-AB6E-D5999018BAF2}';
CLASS_MIB_IFTABLE: TGUID = '{3A387FE2-1B6D-3BA8-ACD1-96E2B785CFF1}';
CLASS_IpInfo: TGUID = '{189F802B-524F-32C4-B932-4305A13ACEF6}';
CLASS_DiskInfo: TGUID = '{DF46AE84-4729-345A-A3FA-68DA449D5EAD}';
CLASS_SystemInfo_: TGUID = '{55DCAF9C-7A27-3D30-9197-32CC6F2A9D59}';
CLASS_MarshallingMethods: TGUID = '{ED8686C8-41F7-3890-A5B3-8F82CE4CF1DE}';
CLASS_CustomMarshalAsAttribute: TGUID = '{6D34F011-137E-3E96-AA16-8F6C537053D0}';
CLASS_NetInfo: TGUID = '{3422C7A0-12B0-34A8-94B3-BAA89C5386FB}';
...........
...........
type

// *********************************************************************//
// Forward declaration of types defined in TypeLibrary
// *********************************************************************//
_CustomMarshaler = interface;
_CustomMarshalerDisp = dispinterface;
_MIB_IFTABLE = interface;
_MIB_IFTABLEDisp = dispinterface;
_ProcessInfo = interface;
_ProcessInfoDisp = dispinterface;
_IpInfo = interface;
_IpInfoDisp = dispinterface;
_DiskInfo = interface;
_DiskInfoDisp = dispinterface;
_SystemInfo = interface;
_SystemInfoDisp = dispinterface;
_MarshallingMethods = interface;
_MarshallingMethodsDisp = dispinterface;
_CustomMarshalAsAttribute = interface;
_CustomMarshalAsAttributeDisp = dispinterface;
_NetInfo = interface;
_NetInfoDisp = dispinterface;
_MIB_IFROW = interface;
_MIB_IFROWDisp = dispinterface;

// *********************************************************************//
// Declaration of CoClasses defined in Type Library
// (NOTE: Here we map each CoClass to its Default Interface)
// *********************************************************************//
CustomMarshaler = _CustomMarshaler;
MIB_IFTABLE = _MIB_IFTABLE;
ProcessInfo = _ProcessInfo;
IpInfo = _IpInfo;
DiskInfo = _DiskInfo;
SystemInfo_ = _SystemInfo;
MarshallingMethods = _MarshallingMethods;
CustomMarshalAsAttribute = _CustomMarshalAsAttribute;
NetInfo = _NetInfo;
MIB_IFROW = _MIB_IFROW;
..........
..........
// *********************************************************************//
// Interface: _NetInfo
// Flags: (4432) Hidden Dual OleAutomation Dispatchable
// GUID: {843369FE-A608-37DF-AB6E-D5999018BAF2}
// *********************************************************************//
_NetInfo = interface(IDispatch)
['{843369FE-A608-37DF-AB6E-D5999018BAF2}']
end;

// *********************************************************************//
// DispIntf: _NetInfoDisp
// Flags: (4432) Hidden Dual OleAutomation Dispatchable
// GUID: {843369FE-A608-37DF-AB6E-D5999018BAF2}
// *********************************************************************//
_NetInfoDisp = dispinterface
['{843369FE-A608-37DF-AB6E-D5999018BAF2}']
end;
............
............
// *********************************************************************//
// The Class CoSystemInfo_ provides a Create and CreateRemote method to
// create instances of the default interface _SystemInfo exposed by
// the CoClass SystemInfo_. The functions are intended to be used by
// clients wishing to automate the CoClass objects exposed by the
// server of this typelibrary.
// *********************************************************************//
CoSystemInfo_ = class
class function Create: _SystemInfo;
class function CreateRemote(const MachineName: string): _SystemInfo;
end;

// *********************************************************************//
// The Class CoNetInfo provides a Create and CreateRemote method to
// create instances of the default interface _NetInfo exposed by
// the CoClass NetInfo. The functions are intended to be used by
// clients wishing to automate the CoClass objects exposed by the
// server of this typelibrary.
// *********************************************************************//
CoNetInfo = class
class function Create: _NetInfo;
class function CreateRemote(const MachineName: string): _NetInfo;
end;
............
............
class function CoSystemInfo_.Create: _SystemInfo;
begin
Result := CreateComObject(CLASS_SystemInfo_) as _SystemInfo;
end;

class function CoSystemInfo_.CreateRemote(const MachineName: string): _SystemInfo;
begin
Result := CreateRemoteComObject(MachineName, CLASS_SystemInfo_) as _SystemInfo;
end;

class function CoNetInfo.Create: _NetInfo;
begin
Result := CreateComObject(CLASS_NetInfo) as _NetInfo;
end;

class function CoNetInfo.CreateRemote(const MachineName: string): _NetInfo;
begin
Result := CreateRemoteComObject(MachineName, CLASS_NetInfo) as _NetInfo;
end;

.....
end.

[liermin226]

在线等待，，，
谢谢，谢谢了！