

Declare Function RasHangUp Lib "rasapi32.dll" Alias "RasHangUpA" (ByVal hRasConn As Long) As Long
Declare Function RasEnumEntries Lib "RasApi32.DLL" Alias "RasEnumEntriesA" (ByVal reserved As String, ByVal lpszPhonebook As String, lprasentryname As Any, lpcb As Long, lpcEntries As Long) As Long


API-Guide писал(а):1)
Description:
The RasHangUp function terminates a remote access connection. The connection is specified with a RAS connection handle. The function releases all RASAPI32.DLL resources associated with the handle.
Declaration:
- Код: Выделить всё
Declare Function RasHangUp Lib "rasapi32.dll" Alias "RasHangUpA" (ByVal hRasConn As Long) As Long
Parameters:
· hrasconn
Identifies the remote access connection to terminate. This is a handle returned from a previous call to RasDial or RasEnumConnections.
Return Values:
If the function succeeds, the return value is zero.
If the function fails, the return value is a nonzero error value listed in the RAS header file, or ERROR_INVALID_HANDLE.
Sample:
- Код: Выделить всё
Const RAS_MAXENTRYNAME = 256
Const RAS_MAXDEVICETYPE = 16
Const RAS_MAXDEVICENAME = 128
Const RAS_RASCONNSIZE = 412
Private Type RasConn
dwSize As Long
hRasConn As Long
szEntryName(RAS_MAXENTRYNAME) As Byte
szDeviceType(RAS_MAXDEVICETYPE) As Byte
szDeviceName(RAS_MAXDEVICENAME) As Byte
End Type
Private Declare Function RasEnumConnections Lib "rasapi32.dll" Alias "RasEnumConnectionsA" (lpRasConn As Any, lpcb As Long, lpcConnections As Long) As Long
Private Declare Function RasHangUp Lib "rasapi32.dll" Alias "RasHangUpA" (ByVal hRasConn As Long) As Long
Private Sub Form_Load()
'KPD-Team 1998
'URL: http://www.allapi.net/
'E-Mail: KPDTeam@Allapi.net
'This program will close your Internet-connection, so to test this, you will have to open an Internet-connection.
Dim i As Long, lpRasConn(255) As RasConn, lpcb As Long
Dim lpcConnections As Long, hRasConn As Long
'Set the structure's size
lpRasConn(0).dwSize = RAS_RASCONNSIZE
lpcb = RAS_MAXENTRYNAME * lpRasConn(0).dwSize
lpcConnections = 0
'Enumerate all the available connections
returncode = RasEnumConnections(lpRasConn(0), lpcb, lpcConnections)
If returncode = 0 Then
For i = 0 To lpcConnections - 1
hRasConn = lpRasConn(i).hRasConn
'Hang up
returncode = RasHangUp(ByVal hRasConn)
Next i
End If
End Sub
2)
Description:
The RasEnumEntries function lists all entry names in a remote access phone book.
Declaration:
- Код: Выделить всё
Declare Function RasEnumEntries Lib "RasApi32.DLL" Alias "RasEnumEntriesA" (ByVal reserved As String, ByVal lpszPhonebook As String, lprasentryname As Any, lpcb As Long, lpcEntries As Long) As Long
Parameters:
.reserved
Reserved; must be NULL.
· 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.
Windows 95: This parameter is ignored. Dial-up networking stores phone-book entries in the registry rather than in a phone-book file.
· lprasentryname
Points to a buffer that receives an array of RASENTRYNAME structures, one for each phone-book entry. Before calling the function, an application must set the dwSize member of the first RASENTRYNAME structure in the buffer to sizeof(RASENTRYNAME) in order to identify the version of the structure being passed.
· lpcb
Points to a variable that contains the size, in bytes, of the buffer specified by lprasentryname. On return, the function sets this variable to the number of bytes required to successfully complete the call.
· lpcEntries
Points to a variable that the function, if successful, sets to the number of phone-book entries written to the buffer specified by lprasentryname.
Return Values:
If the function succeeds, the return value is zero.
If the function fails, the return value is a nonzero error value listed in the RAS header file or one of ERROR_BUFFER_TOO_SMALL or ERROR_NOT_ENOUGH_MEMORY.
Sample:
- Код: Выделить всё
Const RAS95_MaxEntryName = 256
Private Type RASENTRYNAME95
dwSize As Long
szEntryName(RAS95_MaxEntryName) As Byte
End Type
Private Declare Function RasEnumEntries Lib "RasApi32.DLL" Alias "RasEnumEntriesA" (ByVal reserved As String, ByVal lpszPhonebook As String, lprasentryname As Any, lpcb As Long, lpcEntries As Long) As Long
Private Sub Form_Load()
'KPD-Team 1999
'URL: http://www.allapi.net/
'E-Mail: KPDTeam@Allapi.net
Dim s As Long, l As Long, ln As Long, a$
ReDim R(255) As RASENTRYNAME95
Me.AutoRedraw = True
R(0).dwSize = Len(R(0))
s = 256 * R(0).dwSize
l = RasEnumEntries(vbNullString, vbNullString, R(0), s, ln)
For l = 0 To ln - 1
a$ = StrConv(R(l).szEntryName(), vbUnicode)
Me.Print Left$(a$, InStr(a$, Chr$(0)) - 1)
Next
If ln = 0 Then
Me.Print "No Dial-Up connections found!"
End If
End Sub
3)
Description:
The ExitWindowsEx function either logs off, shuts down, or shuts down and restarts the system.
Declaration:
- Код: Выделить всё
Declare Function ExitWindowsEx Lib "user32" Alias "ExitWindowsEx" (ByVal uFlags As Long, ByVal dwReserved As Long) As Long
Parameters:
· uFlags
Specifies the type of shutdown. This parameter must be some combination of the following values:
EWX_FORCE
Forces processes to terminate. When this flag is set, Windows does not send the messages WM_QUERYENDSESSION and WM_ENDSESSION to the applications currently running in the system. This can cause the applications to lose data. Therefore, you should only use this flag in an emergency.
EWX_LOGOFF
Shuts down all processes running in the security context of the process that called the ExitWindowsEx function. Then it logs the user off.
EWX_POWEROFF
Shuts down the system and turns off the power. The system must support the power-off feature.
Windows NT: The calling process must have the SE_SHUTDOWN_NAME privilege. For more information, see the following Remarks section.
Windows 95: Security privileges are not supported or required.
EWX_REBOOT
Shuts down the system and then restarts the system.
Windows NT: The calling process must have the SE_SHUTDOWN_NAME privilege. For more information, see the following Remarks section.
Windows 95: Security privileges are not supported or required.
EWX_SHUTDOWN
Shuts down the system to a point at which it is safe to turn off the power. All file buffers have been flushed to disk, and all running processes have stopped.
Windows NT: The calling process must have the SE_SHUTDOWN_NAME privilege. For more information, see the following Remarks section.
Windows 95: Security privileges are not supported or required.
· dwReserved
Reserved; this parameter is ignored.
Return Values:
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
Sample:
- Код: Выделить всё
'In general section
Const EWX_LOGOFF = 0
Const EWX_SHUTDOWN = 1
Const EWX_REBOOT = 2
Const EWX_FORCE = 4
Private Declare Function ExitWindowsEx Lib "user32" (ByVal uFlags As Long, ByVal dwReserved As Long) As Long
Private Sub Form_Load()
'KPD-Team 1998
'URL: http://www.allapi.net/
'E-Mail: KPDTeam@Allapi.net
msg = MsgBox("This program is going to reboot your computer. Press OK to continue or Cancel to stop.", vbCritical + vbOKCancel + 256, App.Title)
If msg = vbCancel Then End
'reboot the computer
ret& = ExitWindowsEx(EWX_FORCE Or EWX_REBOOT, 0)
End Sub

'In a module
Private Const EWX_LOGOFF = 0
Private Const EWX_SHUTDOWN = 1
Private Const EWX_REBOOT = 2
Private Const EWX_FORCE = 4
Private Const TOKEN_ADJUST_PRIVILEGES = &H20
Private Const TOKEN_QUERY = &H8
Private Const SE_PRIVILEGE_ENABLED = &H2
Private Const ANYSIZE_ARRAY = 1
Private Const VER_PLATFORM_WIN32_NT = 2
Type OSVERSIONINFO
dwOSVersionInfoSize As Long
dwMajorVersion As Long
dwMinorVersion As Long
dwBuildNumber As Long
dwPlatformId As Long
szCSDVersion As String * 128
End Type
Type LUID
LowPart As Long
HighPart As Long
End Type
Type LUID_AND_ATTRIBUTES
pLuid As LUID
Attributes As Long
End Type
Type TOKEN_PRIVILEGES
PrivilegeCount As Long
Privileges(ANYSIZE_ARRAY) As LUID_AND_ATTRIBUTES
End Type
Private Declare Function GetCurrentProcess Lib "kernel32" () As Long
Private Declare Function OpenProcessToken Lib "advapi32" (ByVal ProcessHandle As Long, ByVal DesiredAccess As Long, TokenHandle As Long) As Long
Private Declare Function LookupPrivilegeValue Lib "advapi32" Alias "LookupPrivilegeValueA" (ByVal lpSystemName As String, ByVal lpName As String, lpLuid As LUID) As Long
Private Declare Function AdjustTokenPrivileges Lib "advapi32" (ByVal TokenHandle As Long, ByVal DisableAllPrivileges As Long, NewState As TOKEN_PRIVILEGES, ByVal BufferLength As Long, PreviousState As TOKEN_PRIVILEGES, ReturnLength As Long) As Long
Private Declare Function ExitWindowsEx Lib "user32" (ByVal uFlags As Long, ByVal dwReserved As Long) As Long
Private Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" (ByRef lpVersionInformation As OSVERSIONINFO) As Long
'Detect if the program is running under Windows NT
Public Function IsWinNT() As Boolean
Dim myOS As OSVERSIONINFO
myOS.dwOSVersionInfoSize = Len(myOS)
GetVersionEx myOS
IsWinNT = (myOS.dwPlatformId = VER_PLATFORM_WIN32_NT)
End Function
'set the shut down privilege for the current application
Private Sub EnableShutDown()
Dim hProc As Long
Dim hToken As Long
Dim mLUID As LUID
Dim mPriv As TOKEN_PRIVILEGES
Dim mNewPriv As TOKEN_PRIVILEGES
hProc = GetCurrentProcess()
OpenProcessToken hProc, TOKEN_ADJUST_PRIVILEGES + TOKEN_QUERY, hToken
LookupPrivilegeValue "", "SeShutdownPrivilege", mLUID
mPriv.PrivilegeCount = 1
mPriv.Privileges(0).Attributes = SE_PRIVILEGE_ENABLED
mPriv.Privileges(0).pLuid = mLUID
' enable shutdown privilege for the current application
AdjustTokenPrivileges hToken, False, mPriv, 4 + (12 * mPriv.PrivilegeCount), mNewPriv, 4 + (12 * mNewPriv.PrivilegeCount)
End Sub
' Shut Down NT
Public Sub ShutDownNT(Force As Boolean)
Dim ret As Long
Dim Flags As Long
Flags = EWX_SHUTDOWN
If Force Then Flags = Flags + EWX_FORCE
If IsWinNT Then EnableShutDown
ExitWindowsEx Flags, 0
End Sub
'Restart NT
Public Sub RebootNT(Force As Boolean)
Dim ret As Long
Dim Flags As Long
Flags = EWX_REBOOT
If Force Then Flags = Flags + EWX_FORCE
If IsWinNT Then EnableShutDown
ExitWindowsEx Flags, 0
End Sub
'Log off the current user
Public Sub LogOffNT(Force As Boolean)
Dim ret As Long
Dim Flags As Long
Flags = EWX_LOGOFF
If Force Then Flags = Flags + EWX_FORCE
ExitWindowsEx Flags, 0
End Sub
'In a form
'This project needs a form with three command buttons
Private Sub Command1_Click()
LogOffNT True
End Sub
Private Sub Command2_Click()
RebootNT True
End Sub
Private Sub Command3_Click()
ShutDownNT True
End Sub
Private Sub Form_Load()
'KPD-Team 2000
'URL: http://www.allapi.net/
'E-Mail: KPDTeam@Allapi.net
Command1.Caption = "Log Off NT"
Command2.Caption = "Reboot NT"
Command3.Caption = "Shutdown NT"
End Sub

Сейчас этот форум просматривают: нет зарегистрированных пользователей и гости: 10