Win2000或NT中退出Windows时，需要获取退出权限。具体代码如下：
//Enabled or DisEnabled the SE_SHUTDOWN_NAME privilege
//sPrivilegeName:
// 'SE_SHUTDOWN_NAME'
//bEnabled :
// Enabled or DisEnabled 'SE_SHUTDOWN_NAME' privilege
function SetPrivilege(sPrivilegeName: string
bEnabled: boolean ): boolean;
var
TPPrev,
TP : TTokenPrivileges;
Token : THandle;
dwRetLen : DWord;
begin
Result := False;
//opens the access token associated with a process.
OpenProcessToken(
GetCurrentProcess, //handle to process
TOKEN_ADJUST_PRIVILEGES //Required to change the privileges specified in an access token.
or TOKEN_QUERY, //Required to query the contents of an access token.
Token);
TP.PrivilegeCount := 1;
//retrieves the locally unique identifier (LUID) used on a specified system to
//locally represent the specified privilege name.
if( LookupPrivilegeValue(
Nil, //attempts to find the privilege name on the local system.
PChar( sPrivilegeName ), // address of string specifying the privilege
TP.Privileges[ 0 ].LUID ) // address of locally unique identifier
)then
begin
if( bEnabled )then //Give this privileges
begin
TP.Privileges[ 0 ].Attributes := SE_PRIVILEGE_ENABLED;
end
else begin //NOT Give this privileges
TP.Privileges[ 0 ].Attributes := 0;
end;
dwRetLen := 0;
//enables or disables privileges in the specified access token.
Result := AdjustTokenPrivileges(
Token, // handle to token that contains privileges
False, //modifies privileges
TP, // pointer to new privilege information
SizeOf( TPPrev ), // size, in bytes, of the TPPrev buffer
TPPrev, // receives original state of changed privileges
dwRetLen // receives required size of the TPPrev buffer
);
end;
CloseHandle( Token );
end;
//iFlags:
//下面一种情况必须被指定
// EWX_LOGOFF
// EWX_REBOOT
// EWX_SHUTDOWN
// 以下标记可以组合使用
// EWX_POWEROFF
// EWX_FORCE : terminate processes
function WinExitInNT( iFlags : integer ) : boolean;
begin
Result := True;
if( SetPrivilege('SeShutdownPrivilege', True ) )then
begin
if( not ExitWindowsEx( iFlags, 0 ) )then
begin
Result := False;
end;
SetPrivilege('SeShutdownPrivilege', False )
end
else begin
// handle errors...
Result := False;
end;
end;
procedure TfrmMain.btnExitClick(Sender: TObject);
begin
WinExitInNT(EWX_SHUTDOWN+EWX_POWEROFF+EWX_FORCE);
end;
在Win2000下测试通过，呵呵，给分吧。
