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RasSecurityDialogSend info  Overview  Group

The RasSecurityDialogSend function sends a message to be displayed in a terminal window on a remote computer. A third-party RAS security DLL sends this message as part of its authentication of a remote user.

To call this function, you must first call the LoadLibrary function to load RASMAN.DLL. Then call the GetProcAddress function to get the DLLís RasSecurityDialogSend entry point.

DWORD RasSecurityDialogSend(

    HPORT hPort,

// RAS handle to the port

    PBYTE pBuffer,

// pointer to buffer containing data to send

    WORD BufferLength

// size, in bytes, of the data being sent

   );

Parameters

hPort
Specifies the port handle that the RAS server passed to the security DLL in the RasSecurityDialogBegin call for this authentication transaction.
pBuffer
Pointer to the send buffer that was passed to the security DLL in the call to RasSecurityDialogBegin. Before calling RasSecurityDialogSend, copy into this buffer the message to send to the remote user. The SendBufSize parameter of the RasSecurityDialogBegin function indicates the maximum number of bytes you can copy to this buffer.
BufferLength
Specifies the number of bytes to send in the pBuffer buffer.

Return Values

If the function is successful, the return value is PENDING (defined in RASERROR.H). This indicates that the send operation is in progress.

If an error occurs, the return value is one of the error codes defined in RASERROR.H or WINERROR.H. GetLastError does not provide extended error information.

Remarks

The RasSecurityDialogSend function is asynchronous. After calling it to send a message to the remote user, call the RasSecurityDialogReceive function, and then wait for a response. The security DLL can make any number of RasSecurityDialogSend calls, with each call followed by a RasSecurityDialogReceive call.

When a security DLL is authenticating a remote user, the connection operation on the remote computer enters a RASCS_Interactive paused state. The message sent by RasSecurityDialogSend is displayed as output in a terminal window on the remote computer. The response received by RasSecurityDialogReceive is the input that the remote user types in the terminal window. The RASCS_Interactive value is defined in the RASCONNSTATE enumeration.

See Also

GetProcAddress, LoadLibrary, RASCONNSTATE, RasSecurityDialogBegin, RasSecurityDialogReceive 

See also:


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