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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| No
| Win32s
| No
| Import Library
| rasapi32.lib
| Header File
| ras.h
| Unicode
| WinNT
| Platform Notes
| None
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RasGetEntryProperties
[New - Windows NT]
The RasGetEntryProperties function retrieves the properties of a phone-book entry.
DWORD RasGetEntryProperties(
LPTSTR lpszPhonebook,
| // pointer to full path and filename of phone-book file
| LPTSTR lpszEntry,
| // pointer to an entry name
| LPRASENTRY lpRasEntry,
| // buffer that receives entry information
| LPDWORD lpdwEntryInfoSize,
| // size, in bytes, of the lpRasEntry buffer
| LPBYTE lpbDeviceInfo,
| // buffer that receives device-specific configuration information
| LPDWORD lpdwDeviceInfoSize
| // size, in bytes, of the lpbDeviceInfo buffer
| );
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Parameters
lpszPhonebook
Windows NT: 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 containing an existing entry name. If you
specify an empty string, "", the function returns default values in the buffers
pointed to by the lpRasEntry and lpbDeviceInfo parameters.
lpRasEntry
Pointer to a RASENTRY structure followed by additional bytes for the alternate phone number list,
if there is one. The structure receives the connection data associated with the
phone-book entry specified by the lpszEntry parameter. Before calling the function, set the dwSize member of the structure to sizeof(RASENTRY) to identify the version of the structure. This parameter can be NULL.
lpdwEntryInfoSize
Pointer to a variable that contains the size, in bytes, of the lpRasEntry buffer. On return, the function sets this variable to the number of bytes
required. This parameter can be NULL if the lpRasEntry parameter is NULL.
To determine the required buffer size, call RasGetEntryProperties with lpRasEntry set to NULL and *lpdwEntryInfoSize set to zero. The function returns the required buffer size in *lpdwEntryInfoSize.
lpbDeviceInfo
Pointer to a buffer that receives device-specific configuration information.
This is opaque TAPI device configuration information that you should not
manipulate directly. This parameter can be NULL. For more information about TAPI
device configuration, see the Win32 Telephony (TAPI) Programmer's Reference.
lpdwDeviceInfoSize
Pointer to a variable that contains the size, in bytes, of the buffer
specified by the lpbDeviceInfo parameter. On return, the function sets this variable to the number of bytes
required. This parameter can be NULL if the lpbDeviceInfo parameter s NULL.
To determine the required buffer size, call RasGetEntryProperties with lpbDeviceInfo set to NULL and *lpdwDeviceInfoSize set to zero. The function returns the required buffer size in *lpdwDeviceInfoSize.
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_INVALID_PARAMETER
| The function was called with an invalid parameter.
| ERROR_BUFFER_INVALID
| The address or buffer specified by lpRasEntry is invalid.
| ERROR_BUFFER_TOO_SMALL
| The buffer size indicated in lpdwEntryInfoSize is too small.
| ERROR_CANNOT_OPEN_PHONEBOOK
| The phone book is corrupted or is missing components.
| ERROR_CANNOT_FIND_PHONEBOOK_ENTRY
| The phone-book entry does not exist.
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See Also
RASENTRY, RasSetEntryProperties
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