关于RAS远程拨号

[zhoutao]

各位高高手：
我在一个C/S程序中，需要通过RAS远程拨号API，但通过API调用太过繁琐，尤其在拨号端，要判断各种拨号状态（占线、无拨号音...）----我要完了！请问各位高高手，谁有较详细的例子，或者是RAS的通用类及调用步骤。
小生在这里谢过了。并献上50分，以表谢意。

[zhoutao]

哪里有？你用过吗？请Mail给我好吗？

[Un1]

下载一个“多线程RAS控件”试试！

[maolian]

到 www.vchelp.net上下载，大量例子

[zhoutao]

我的E-Mail: [e-mail]
谢谢！

[半宫佳丽]

用RAS拨号后，请问我该如何发送数据呢？用AT指命吗？除些还有别的办法吗？

[Un1]

当然用过!

http://210.77.145.209/csdn/softs/softview.asp?id=456

[Un1]

To GUID:

RAS连接后, 使用Winsock连接.无须理会硬件.

[zhoutao]

我的答案：以供参考。
//---------------------------------------------------------------
// RasDialFunc
//
// call back function for the rasdial. As the
// connection state changes during dialing, this
// function is called.
//---------------------------------------------------------------
VOID CALLBACK RasDialFunc(UINT unMsg, RASCONNSTATE rasconnstate, DWORD dwError)
{
////////////////
if (dwError != 0)
{
char szBuf[256];
if ( RasGetErrorString( dwError, (LPSTR)szBuf, 256 ) != 0 )
wsprintf( (LPSTR)szBuf, " RAS 拨号错误 (%ld).", dwError );
MessageBeep( MB_ICONEXCLAMATION );
RasHangUp( g_hRasConn );
AfxMessageBox( (LPSTR)szBuf, MB_OK and MB_ICONSTOP);
SendMessage(hRasHandle, WM_CLOSE, 0, 0);
return;
}

LPCTSTR lpszMsg;
switch ( rasconnstate )
{
case RASCS_OpenPort : lpszMsg = "Openning Port"; break;
case RASCS_PortOpened : lpszMsg = "Port Opened"; break;
case RASCS_ConnectDevice : lpszMsg = "Connecting Device"; break;
case RASCS_DeviceConnected : lpszMsg = "Device Connected"; break;
case RASCS_AllDevicesConnected : lpszMsg = "All Devices Connected"; break;
case RASCS_Authenticate : lpszMsg = "Starting Authentication"; break;
case RASCS_AuthNotify : lpszMsg = "Authentication Notify"; break;
case RASCS_AuthRetry : lpszMsg = "Authentication Retry"; break;
case RASCS_AuthCallback : lpszMsg = "Callback Requested"; break;
case RASCS_AuthChangePassword : lpszMsg = "Change Password Requested"; break;
case RASCS_AuthProject : lpszMsg = "Projection Phase Started"; break;
case RASCS_AuthLinkSpeed : lpszMsg = "Link Speed Calculation"; break;
case RASCS_AuthAck : lpszMsg = "Authentication Acknowledged"; break;
case RASCS_ReAuthenticate : lpszMsg = "Reauthenticatation Started"; break;
case RASCS_Authenticated : lpszMsg = "Authenticated"; break;
case RASCS_PrepareForCallback : lpszMsg = "Preparation For Callback"; break;
case RASCS_WaitForModemReset : lpszMsg = "Waiting For Modem Reset"; break;
case RASCS_WaitForCallback : lpszMsg = "Waiting For Callback"; break;
case RASCS_Interactive : lpszMsg = "Interactive"; break;
case RASCS_RetryAuthentication : lpszMsg = "Retry Authentication"; break;
case RASCS_CallbackSetByCaller : lpszMsg = "Callback Set By Caller"; break;
case RASCS_PasswordExpired : lpszMsg = "Password Expired"; break;
case RASCS_Disconnected : lpszMsg = "Disconnected"; break;
case RASCS_Connected : lpszMsg = "Connected"; break;
}
SendMessage(hRasWndTitle, WM_SETTEXT, 0, (LPARAM)lpszMsg);
}

bool CRasExDlg::Dial()
{
CWaitCursor wait;

RASDIALPARAMS rdParams;
memset(&rdParams, NULL, sizeof(RASDIALPARAMS));
rdParams.dwSize = sizeof(RASDIALPARAMS);
strcpy(rdParams.szPhoneNumber, m_pNumber);
strcpy(rdParams.szUserName, m_pUserName);
strcpy(rdParams.szPassword, m_pPassword);

/* RASCONNSTATUS rasconnstatus;
memset(&rasconnstatus, NULL, sizeof(RASCONNSTATUS));
rasconnstatus.dwSize = sizeof(RASCONNSTATUS);
RasGetConnectStatus(g_hRasConn, &rasconnstatus);
if(rasconnstatus.rasconnstate == RASCS_Connected) {
AfxMessageBox(IDS_STRING61461, MB_OK and MB_ICONSTOP);
CDialog::OnOK();
}
*/
g_hRasConn = NULL;
// RasDial(NULL, NULL, &rdParams, NULL, (RASDIALFUNC)RasDialFunc, &g_hRasConn);
DWORD dwRet = RasDial( NULL, NULL, &rdParams, 0L, NULL, &g_hRasConn );

wait.Restore();

if ( dwRet == 0 ) {
CString string;
string.LoadString(IDS_STRING61455);
MessageBox(string, "拨号成功", MB_OK);
SendMessage(WM_CLOSE, 0, 0);
return true;
}
else {
char szBuf[256];
if ( RasGetErrorString( (UINT)dwRet, (LPSTR)szBuf, 256 ) != 0 )
wsprintf( (LPSTR)szBuf, " RAS拨号错误 (%ld).", dwRet );
RasHangUp( g_hRasConn );
MessageBox( (LPSTR)szBuf, "拨号错误", MB_OK and MB_ICONSTOP );
SendMessage(WM_CLOSE, 0, 0);
return false;
}
}

bool CRasExDlg::Hangup()
{
RASCONN ras[20];
DWORD dSize, dNumber;
char szBuf[256];
CString string;

ras[0].dwSize = sizeof( RASCONN );
dSize = sizeof( ras ); // Get active RAS - Connection
DWORD dwRet = RasEnumConnections( ras, &dSize, &dNumber );
if ( dwRet != 0 )
{
if ( RasGetErrorString( (UINT)dwRet, (LPSTR)szBuf, 256 ) != 0 )
wsprintf( (LPSTR)szBuf, "未知的RAS枚举连接错误 (%ld).", dwRet );
MessageBox( (LPSTR)szBuf, "拨号断开", MB_OK and MB_ICONSTOP );
SendMessage(WM_CLOSE, 0, 0);
return false;
}
bool bOK = true;
for( DWORD dCount = 0; dCount < dNumber; dCount++ )
{ // Hang up that connection
HRASCONN hRasConn = ras[dCount].hrasconn;
DWORD dwRet = RasHangUp( hRasConn );
if ( dwRet != 0 )
{
char szBuf[256];
if ( RasGetErrorString( (UINT)dwRet, (LPSTR)szBuf, 256 ) != 0 )
wsprintf( (LPSTR)szBuf, "Undefined RAS HangUp Error (%ld).", dwRet );
MessageBox( (LPSTR)szBuf, "拨号断开", MB_OK and MB_ICONSTOP );
bOK = false;
}
else {
//Wait in loop until RAS state machine exits.
//Sleep(3000);
RASCONNSTATUS rasStatus;
rasStatus.dwSize = sizeof(RASCONNSTATUS);
while( RasGetConnectStatus(hRasConn,&rasStatus) != ERROR_INVALID_HANDLE ){}
}
}

if(bOK == true) {
string.LoadString(IDS_STRING61457);
MessageBox( string, "拨号断开", MB_OK );
}
else {
string.LoadString(IDS_STRING61459);
MessageBox( string, "拨号断开", MB_OK and MB_ICONSTOP );
}

SendMessage(WM_CLOSE, 0, 0);

return bOK;
}

void CRasExDlg::UpdateRasStats()
{
RASCONNSTATUS rasconnstatus;
memset(&rasconnstatus, NULL, sizeof(RASCONNSTATUS));
rasconnstatus.dwSize = sizeof(RASCONNSTATUS);
RasGetConnectStatus(g_hRasConn, &rasconnstatus);
if(rasconnstatus.rasconnstate == RASCS_Connected)
m_IsDial = TRUE;
else if(rasconnstatus.rasconnstate == RASCS_Disconnected)
m_IsDial = FALSE;
// ERROR_INVALID_HANDLE
/* DWORD dw = 0,nBufferSize = sizeof(RASCONN) * 4,w = 0;
RASCONN pRasConn[4];
memset(pRasConn,'\0',sizeof(RASCONN)*4);
pRasConn->dwSize = sizeof(RASCONN);
w = RasEnumConnections(pRasConn, &nBufferSize, &dw);
if (w != 0) DisplayError(w);
else if (dw > 0) {
// TaskBarIconModify(g_hIcons[1],pRasConn->szEntryName);
} else {
// TaskBarIconModify(g_hIcons[0],_T("No Connection"));
}
*/
}

void CRasExDlg::DisplayError(DWORD dw)
{
CString string;
TCHAR szBuf[256];
memset(szBuf, NULL, 256);
RasGetErrorString( dw, (LPSTR)szBuf, 256 );
if(szBuf[0] == 0x00) {
if(dw == 6)
string.LoadString(IDS_STRING61460);
else string.LoadString(IDS_STRING61454);
memcpy(szBuf, string, string.GetLength() );
}
AfxMessageBox( (LPSTR)szBuf, MB_OK and MB_ICONSTOP);
}

BOOL CRasExDlg::OnInitDialog()
{
CDialog::OnInitDialog();

hRasHandle = this->m_hWnd;
hRasWndTitle = (GetDlgItem(IDC_STATICTEXT))->m_hWnd;
if (m_IsStatus == TRUE) {
m_Text = "正在进行拨号,请等待...";
UpdateData(FALSE);
}
else {
m_Text = "正在断开拨号,请等待...";
UpdateData(FALSE);
}
SetTimer(1, 500, NULL);
return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}

void CRasExDlg::OnTimer(UINT nIDEvent)
{
switch(nIDEvent)
{
case 1:
KillTimer(1);
if (m_IsStatus == TRUE) Dial();
else Hangup();
break;
default:
break;
}

CDialog::OnTimer(nIDEvent);
}

void CRasExDlg::OnMycancel()
{
//UpdateRasStats();
//if(m_IsDial == TRUE)
Hangup();
CDialog::OnCancel();
}