#include?“stdafx.h“
#include?“MFNetTraffic.h“
#include?“float.h“

#ifdef?_DEBUG
#undef?THIS_FILE
static?char?THIS_FILE[]=__FILE__;
#define?new?DEBUG_NEW
#endif

#include?“winperf.h“

//////////////////////////////////////////////////////////////////////
//?Construction/Destruction
//////////////////////////////////////////////////////////////////////

MFNetTraffic::MFNetTraffic（）
{
	lasttraffic?=?0.0;
	CurrentInterface?=?-1;
	CurrentTrafficType?=?AllTraffic;
	GetInterfaces（）;
}

MFNetTraffic::~MFNetTraffic（）
{
	
}


PERF_object_TYPE?*Firstobject（PERF_DATA_BLOCK?*dataBlock）
{
??return?（PERF_object_TYPE?*）?（（BYTE?*）dataBlock?+?dataBlock->HeaderLength）;
}

PERF_object_TYPE?*Nextobject（PERF_object_TYPE?*act）
{
??return?（PERF_object_TYPE?*）?（（BYTE?*）act?+?act->TotalByteLength）;
}

PERF_COUNTER_DEFINITION?*FirstCounter（PERF_object_TYPE?*perfobject）
{
??return?（PERF_COUNTER_DEFINITION?*）?（（BYTE?*）?perfobject?+?perfobject->HeaderLength）;
}

PERF_COUNTER_DEFINITION?*NextCounter（PERF_COUNTER_DEFINITION?*perfCounter）
{
??return?（PERF_COUNTER_DEFINITION?*）?（（BYTE?*）?perfCounter?+?perfCounter->ByteLength）;
}

PERF_COUNTER_BLOCK?*GetCounterBlock（PERF_INSTANCE_DEFINITION?*pInstance）
{
??return?（PERF_COUNTER_BLOCK?*）?（（BYTE?*）pInstance?+?pInstance->ByteLength）;
}

PERF_INSTANCE_DEFINITION?*FirstInstance?（PERF_object_TYPE?*pobject）
{
??return?（PERF_INSTANCE_DEFINITION?*）??（（BYTE?*）?pobject?+?pobject->DefinitionLength）;
}

PERF_INSTANCE_DEFINITION?*NextInstance?（PERF_INSTANCE_DEFINITION?*pInstance）
{
??PERF_COUNTER_BLOCK??*pCtrBlk?=?GetCounterBlock（pInstance）;

??return?（PERF_INSTANCE_DEFINITION?*）?（（BYTE?*）pInstance?+?pInstance->ByteLength?+?pCtrBlk->ByteLength）;
}

char?*WideToMulti（wchar_t?*source?char?*dest?int?size）
{
??WideCharToMultiByte（CP_ACP?0?source?-1?dest?size?0?0）;

??return?dest;
}
/*
Window?NT/2000:?When?calling?the?RegQueryValueEx?function?with?hKey?set?to?the?
HKEY_PERFORMANCE_DATA?handle?and?a?value?string?of?a?specified?object?the?
returned?data?structure?sometimes?has?unrequested?objects.?Don‘t?be?surprised;
this?is?normal?behavior.?When?calling?the?RegQueryValueEx?function?you?should?
always?expect?to?walk?the?returned?data?structure?to?look?for?the?requested?object.?
*/
//得到接口號為interfaceNumber的接口流量
double?MFNetTraffic::GetTraffic（int?interfaceNumber）
{
	try
	{
#define?DEFAULT_BUFFER_SIZE?40960L
		
		POSITION?pos;
		CString?InterfaceName;
		pos?=?Interfaces.FindIndex（interfaceNumber）;
		if（pos==NULL）
			return?0.0;
		//得到當前的接口名字
		InterfaceName?=?Interfaces.GetAt（pos）;
		
		//為性能數據緩沖
		unsigned?char?*data?=?new?unsigned?char?[DEFAULT_BUFFER_SIZE];
		//?從RegQueryValueEx返回的值:本例中忽略改變量
		DWORD?type;
		//?緩沖的尺寸
		DWORD?size?=?DEFAULT_BUFFER_SIZE;
		//?RegQueryValueEx返回的值
		DWORD?ret;
		
		//?從網絡對象（索引是510）查詢性能數據
		/*
		HKEY_PERFORMANCE_DATA:
		Windows?NT/2000/XP:?Registry?entries?subordinate?to?this?key?allow?you?to?
		access?per

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????46567??2012-06-06?11:09??NetTraffic\Debug\MFNetTraffic.obj

?????文件??????????0??2012-06-06?11:09??NetTraffic\Debug\MFNetTraffic.sbr

?????文件??????56743??2012-06-06?11:09??NetTraffic\Debug\mftrafficbutton.obj

?????文件??????????0??2012-06-06?11:09??NetTraffic\Debug\mftrafficbutton.sbr

?????文件????3204096??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButton.bsc

?????文件?????143588??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButton.exe

?????文件?????355144??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButton.ilk

?????文件??????16710??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButton.obj

?????文件????6867124??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButton.pch

?????文件?????377856??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButton.pdb

?????文件???????2968??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButton.res

?????文件??????????0??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButton.sbr

?????文件??????32199??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButtonDlg.obj

?????文件??????????0??2012-06-06?11:09??NetTraffic\Debug\NetTrafficButtonDlg.sbr

?????文件?????107152??2012-06-06?11:09??NetTraffic\Debug\StdAfx.obj

?????文件????1375424??2012-06-06?11:09??NetTraffic\Debug\StdAfx.sbr

?????文件?????230400??2012-06-07?09:36??NetTraffic\Debug\vc60.idb

?????文件?????372736??2012-06-06?11:09??NetTraffic\Debug\vc60.pdb

?????文件????????615??2003-07-12?10:21??NetTraffic\Globals.h

?????文件???????2188??2003-07-13?19:16??NetTraffic\MemDC.h

?????文件???????9567??2008-07-01?20:59??NetTraffic\MFNetTraffic.cpp

?????文件???????1334??2003-07-12?12:32??NetTraffic\MFNetTraffic.h

?????文件??????14818??2003-07-12?20:01??NetTraffic\mftrafficbutton.cpp

?????文件???????3017??2003-07-12?10:51??NetTraffic\mftrafficbutton.h

?????文件??????22288??2012-06-06?11:09??NetTraffic\NetTrafficButton.aps

?????文件???????1441??2012-06-07?09:39??NetTraffic\NetTrafficButton.clw

?????文件????????943??2003-07-12?19:14??NetTraffic\NetTrafficButton.cpp

?????文件???????4742??2003-07-12?11:02??NetTraffic\NetTrafficButton.dsp

?????文件????????585??2001-10-31?19:53??NetTraffic\NetTrafficButton.dsw

?????文件????????831??2003-07-03?14:44??NetTraffic\NetTrafficButton.h

............此處省略20個文件信息