怎么样用 VC 编程 得到上网的速度？？？

Question

怎么样用 VC 编程 得到上网的速度？？？

Answer 1

Internet Protocol Helper 可以帮你完成

Answer 2

H文件：rasSpdM.h #ifndef __RASSPDMON_H_
#define __RASSPDMON_H_void InitSpeedMonitor(void);
void ClearSpeedMonitor(void);
void GetRASSpeed(DWORD* pTPS,DWORD* pRPS,DWORD* pTT,DWORD* pRT);
////参数：每秒发送，每秒接收，总发送，总接受
#endifCPP文件rasSpdM.cpp#include "stdafx.h"
#include "rasSpdM.h"
#include 
#define TOTALBYTES    4096
#define BYTEINCREMENT 1024LPSTR lpNameStrings=NULL;
LPSTR *lpNamesArray=NULL;
BOOL glo_fFromDynReg=TRUE;/*
在9x下通过dyn_data注册表得到速度
*/
DWORD GetTotalRecv(void)
{
HKEY hKey;
DWORD dwValue=(DWORD)-1;
if(0==RegOpenKey(HKEY_DYN_DATA,"PerfStats\\StatData",&hKey))
{
DWORD dwType,dwLen=sizeof(DWORD);
RegQueryValueEx(hKey,"Dial-Up Adapter\\TotalBytesRecvd",NULL,&dwType,(BYTE*)&dwValue,&dwLen);
RegCloseKey(hKey);
}
return dwValue;
}
DWORD GetTotalXmit(void)
{
HKEY hKey;
DWORD dwValue=(DWORD)-1;
if(0==RegOpenKey(HKEY_DYN_DATA,"PerfStats\\StatData",&hKey))
{
DWORD dwType,dwLen=sizeof(DWORD);
RegQueryValueEx(hKey,"Dial-Up Adapter\\TotalBytesXmit",NULL,&dwType,(BYTE*)&dwValue,&dwLen);
RegCloseKey(hKey);
}
return dwValue;
}
DWORD GetPerSecondRecv(void)
{
HKEY hKey;
DWORD dwValue=(DWORD)-1;
if(0==RegOpenKey(HKEY_DYN_DATA,"PerfStats\\StatData",&hKey))
{
DWORD dwType,dwLen=sizeof(DWORD);
RegQueryValueEx(hKey,"Dial-Up Adapter\\BytesRecvd",NULL,&dwType,(BYTE*)&dwValue,&dwLen);
RegCloseKey(hKey);
}
return dwValue;
}
DWORD GetPerSecondXmit(void)
{
HKEY hKey;
DWORD dwValue=(DWORD)-1;
if(0==RegOpenKey(HKEY_DYN_DATA,"PerfStats\\StatData",&hKey))
{
DWORD dwType,dwLen=sizeof(DWORD);
RegQueryValueEx(hKey,"Dial-Up Adapter\\BytesXmit",NULL,&dwType,(BYTE*)&dwValue,&dwLen);
RegCloseKey(hKey);
}
return dwValue;
}/*****************************************************************
在NT下通过per Data得到
 *****************************************************************/PPERF_OBJECT_TYPE FirstObject( PPERF_DATA_BLOCK PerfData )
{
    return( (PPERF_OBJECT_TYPE)((PBYTE)PerfData + 
        PerfData->HeaderLength) );
}PPERF_OBJECT_TYPE NextObject( PPERF_OBJECT_TYPE PerfObj )
{
    return( (PPERF_OBJECT_TYPE)((PBYTE)PerfObj + 
        PerfObj->TotalByteLength) );
}PPERF_INSTANCE_DEFINITION FirstInstance( PPERF_OBJECT_TYPE PerfObj )
{
    return( (PPERF_INSTANCE_DEFINITION)((PBYTE)PerfObj + 
        PerfObj->DefinitionLength) );
}PPERF_INSTANCE_DEFINITION NextInstance( 
    PPERF_INSTANCE_DEFINITION PerfInst )
{
    PPERF_COUNTER_BLOCK PerfCntrBlk;    PerfCntrBlk = (PPERF_COUNTER_BLOCK)((PBYTE)PerfInst + 
        PerfInst->ByteLength);    return( (PPERF_INSTANCE_DEFINITION)((PBYTE)PerfCntrBlk + 
        PerfCntrBlk->ByteLength) );
}PPERF_COUNTER_DEFINITION FirstCounter( PPERF_OBJECT_TYPE PerfObj )
{
    return( (PPERF_COUNTER_DEFINITION) ((PBYTE)PerfObj + 
        PerfObj->HeaderLength) );
}PPERF_COUNTER_DEFINITION NextCounter( 
    PPERF_COUNTER_DEFINITION PerfCntr )
{
    return( (PPERF_COUNTER_DEFINITION)((PBYTE)PerfCntr + 
        PerfCntr->ByteLength) );
}/*****************************************************************
 *                                                               *
 * Load the counter and object names from the registry to the    *
 * global variable lpNamesArray.                                 *
 *                                                               *
 *****************************************************************/void GetNameStrings( )
{
    HKEY hKeyPerflib;      // handle to registry key
    HKEY hKeyPerflib009;   // handle to registry key
    DWORD dwMaxValueLen;   // maximum size of key values
    DWORD dwBuffer;        // bytes to allocate for buffers
    DWORD dwBufferSize;    // size of dwBuffer
    LPSTR lpCurrentString; // pointer for enumerating data strings
    DWORD dwCounter;       // current counter index// Get the number of Counter items.    RegOpenKeyEx( HKEY_LOCAL_MACHINE,
        "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Perflib",
        0,
        KEY_READ,
        &hKeyPerflib);    dwBufferSize = sizeof(dwBuffer);    RegQueryValueEx( hKeyPerflib,
        "Last Counter",
        NULL,
        NULL,
        (LPBYTE) &dwBuffer,
        &dwBufferSize );    RegCloseKey( hKeyPerflib );// Allocate memory for the names array.    lpNamesArray = (char**)malloc( (dwBuffer+1) * sizeof(LPSTR) );
// Open key containing counter and object names.    RegOpenKeyEx( HKEY_LOCAL_MACHINE,
    "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Perflib\\009",
        0,
        KEY_READ,
        &hKeyPerflib009);// Get the size of the largest value in the key (Counter or Help).    RegQueryInfoKey( hKeyPerflib009,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        &dwMaxValueLen,
        NULL,
        NULL);// Allocate memory for the counter and object names.    dwBuffer = dwMaxValueLen + 1;    lpNameStrings = (char*)malloc( dwBuffer * sizeof(CHAR) );// Read Counter value.    RegQueryValueEx( hKeyPerflib009,
        "Counter",
        NULL,
        NULL,
        (BYTE*)lpNameStrings, &dwBuffer );// Load names into an array, by index.    int iC=1;
for( lpCurrentString = lpNameStrings; *lpCurrentString;
         lpCurrentString += (lstrlen(lpCurrentString)+1) )
    {
        dwCounter = atol( lpCurrentString );
        lpCurrentString += (lstrlen(lpCurrentString)+1); //printf("%d length=%d data=%s\n",iC++,dwCounter,lpCurrentString);
        lpNamesArray[dwCounter] = (LPSTR) lpCurrentString;
    }
}/*****************************************************************
得到下RAS速度
 *****************************************************************/

Answer 3

void GetRASSpeedOn9X(DWORD* pTPS,DWORD* pRPS,DWORD* pTT,DWORD* pRT)
{// under 9x
*pTPS=GetPerSecondXmit();
*pRPS=GetPerSecondRecv();
*pTT=GetTotalXmit();
*pRT=GetTotalRecv();
}void GetRASSpeedOnNT(DWORD* pTPS,DWORD* pRPS,DWORD* pTT,DWORD* pRT)
{// under NT
////参数：每秒发送，每秒接收，总发送，总接受
    PPERF_DATA_BLOCK PerfData = NULL;
    PPERF_OBJECT_TYPE PerfObj;
    PPERF_INSTANCE_DEFINITION PerfInst;
    PPERF_COUNTER_DEFINITION PerfCntr, CurCntr;
    PPERF_COUNTER_BLOCK PtrToCntr;
    DWORD BufferSize = TOTALBYTES;
    DWORD i, j, k;// Get the name strings through the registry. //return;
// Allocate the buffer for the performance data.    PerfData = (PPERF_DATA_BLOCK) malloc( BufferSize );    while( RegQueryValueEx( HKEY_PERFORMANCE_DATA,
                               "906",//"Global",
                               NULL,
                               NULL,
                               (LPBYTE) PerfData,
                               &BufferSize ) == ERROR_MORE_DATA )
    {
    // Get a buffer that is big enough.        BufferSize += BYTEINCREMENT;
        PerfData = (PPERF_DATA_BLOCK) realloc( PerfData, BufferSize );
    }// Get the first object type.    PerfObj = FirstObject( PerfData );// Process all objects.    //printf("object total=%d\n",PerfData->NumObjectTypes);
//getchar();
for( i=0; i < PerfData->NumObjectTypes; i++ )
    {
    // Display the object by index and name.    // Get the first counter.        PerfCntr = FirstCounter( PerfObj );        if( PerfObj->NumInstances > 0 )
        {
//exit(0);
        }
        else
        {
        // Get the counter block.
            PtrToCntr = (PPERF_COUNTER_BLOCK) ((PBYTE)PerfObj +
                            PerfObj->DefinitionLength );        // Retrieve all counters.            for( j=0; j < PerfObj->NumCounters; j++ )
            {
            // Display the counter by index and name.               
if(strcmp("Bytes Transmitted/Sec",lpNamesArray[PerfCntr->CounterNameTitleIndex])==0)
{
*pTPS=*((DWORD*)((BYTE*)PtrToCntr+PerfCntr->CounterOffset));
}
if(strcmp("Bytes Received/Sec",lpNamesArray[PerfCntr->CounterNameTitleIndex])==0)
{
*pRPS=*((DWORD*)((BYTE*)PtrToCntr+PerfCntr->CounterOffset));
}
                if(strcmp("Bytes Transmitted",lpNamesArray[PerfCntr->CounterNameTitleIndex])==0)
{
*pTT=*((DWORD*)((BYTE*)PtrToCntr+PerfCntr->CounterOffset));
}
                if(strcmp("Bytes Received",lpNamesArray[PerfCntr->CounterNameTitleIndex])==0)
{
*pRT=*((DWORD*)((BYTE*)PtrToCntr+PerfCntr->CounterOffset));
}
// Get the next counter.
PerfCntr = NextCounter( PerfCntr );
}
}    // Get the next object type.
        PerfObj = NextObject( PerfObj );
    }
}void GetRASSpeed(DWORD* pTPS,DWORD* pRPS,DWORD* pTT,DWORD* pRT)
{////参数：每秒发送，每秒接收，总发送，总接受
if(glo_fFromDynReg==FALSE)
{
GetRASSpeedOnNT(pTPS,pRPS, pTT,pRT);
}
else
{
GetRASSpeedOn9X(pTPS,pRPS, pTT,pRT);
}
}void InitSpeedMonitor(void)
{
DWORD dwVersion = GetVersion();
// Get major and minor version numbers of Windows
DWORD dwWindowsMajorVersion =  (DWORD)(LOBYTE(LOWORD(dwVersion)));
DWORD dwWindowsMinorVersion =  (DWORD)(HIBYTE(LOWORD(dwVersion)));
// Get build numbers for Windows NT or Win32s
if (dwVersion>>31 ==0)                // Windows NT
{
glo_fFromDynReg=FALSE;
GetNameStrings( );
}
else         // Windows 95 - 98
glo_fFromDynReg=TRUE;
}
void ClearSpeedMonitor(void)
{
if(lpNameStrings)
free(lpNameStrings);
if(lpNamesArray)
free(lpNamesArray);
}
使用方法：#include "rasSpdM.h"
BOOL CYourApp::InitInstance()
{
//初始化RAS速度访问
InitSpeedMonitor();...
}
#include "rasSpdM.h"
void CYourWnd::OnTimer(UINT nIDEvent) 
{
DWORD dwR,dwS,dwPSR,dwPSS;//总接收，总发送，每秒接收，每秒发送
GetRASSpeed(&dwPSS,&dwPSR,&dwS,&dwR);//pTPS,DWORD* pRPS,DWORD* pTT,DWORD* pRT)
//参数：每秒发送，每秒接收，总发送，总接收
...
}