[New - Windows NT]
The RasGetCredentials function retrieves the user credentials associated with a specified RAS phone-book entry.
DWORD RasGetCredentials(
| LPTSTR lpszPhonebook, | // pointer to the full path and filename of a phone-book file |
| LPTSTR lpszEntry, | // pointer to the name of a phone-book entry |
| LPRASCREDENTIALS lpCredentials | // pointer to structure that receives credentials |
| ); |
Parameters
lpszPhonebook
Pointer to a null-terminated string that specifies the full path and filename of a phone-book (.PBK) file. If this parameter is NULL, the function uses the current default phone-book file. The default phone-book file is the one selected by the user in the User Preferences property sheet of the Dial-Up Networking dialog box.
lpszEntry
Pointer to a null-terminated string that contains the name of a phone-book entry.
lpCredentials
Pointer to a RASCREDENTIALS structure that receives the user credentials associated with the specified phone-book entry. Before calling RasGetCredentials, set the dwSize member of the structure to sizeof(RASCREDENTIALS), and set the dwMask member to indicate the credential information to retrieve. When the function returns, dwMask indicates the members that were successfully retrieved.
Return Values
If the function succeeds the return value is zero.
If the function fails, the return value can be one of the following error codes.
| Value | Meaning |
| ERROR_CANNOT_OPEN_PHONEBOOK | The specified phone book cannot be found. |
| ERROR_CANNOT_FIND_PHONEBOOK_ENTRY | The specified entry does not exist in the phone book. |
| ERROR_INVALID_PARAMETER | The lpCredentials parameter was NULL. |
| ERROR_INVALID_SIZE | The dwSize member of the RASCREDENTIALS structure is an unrecognized value. |
Remarks
The RasGetCredentials function retrieves the credentials of the last user to successfully connect using the specified phone-book entry, or the credentials subsequently specified in a call to the RasSetCredentials function for the phone-book entry.
The RasGetCredentials function retrieves the user credentials that are stored securely for the specified phone-book entry. This function is the preferred way of securely retrieving the credentials associated with a RAS phone book entry. RasGetCredentials supersedes the RasGetEntryDialParams function, which may not be supported in future releases of Windows NT.
See Also