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lausunny
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按照以前论坛和MSDN的说明用DELPHI写了WIN 2K 下定时关机的程序,但如果用WIN 2K 锁定后程序无法关闭电脑请教坛友!<br>共享个经验我觉得如果要学WINDOWS下编程去MSDN.MICROSFT.COM的网站很有用的。<br>以下贴出我的代码还请坛友指出问题所在(AdjustToken();是在以前的帖子抄的,如果用BUTTON的事件关机没问题)<br>procedure TForm1.AdjustToken();<br>var<br> hdlProcessHandle : Cardinal;<br> hdlTokenHandle : Cardinal;<br> tmpLuid : Int64;<br> tkpPrivilegeCount : Int64;<br> tkp : TOKEN_PRIVILEGES;<br> tkpNewButIgnored : TOKEN_PRIVILEGES;<br> lBufferNeeded : Cardinal;<br> Privilege : array[0..0] of _LUID_AND_ATTRIBUTES;<br>begin<br> hdlProcessHandle := GetCurrentProcess;<br> OpenProcessToken(hdlProcessHandle,<br> (TOKEN_ADJUST_PRIVILEGES Or TOKEN_QUERY),<br> hdlTokenHandle);<br><br> // Get the LUID for shutdown privilege.<br> LookupPrivilegeValue('', 'SeShutdownPrivilege', tmpLuid);<br> Privilege[0].Luid := tmpLuid;<br> Privilege[0].Attributes := SE_PRIVILEGE_ENABLED;<br> tkp.PrivilegeCount := 1; // One privilege to set<br> tkp.Privileges[0] := Privilege[0];<br> // Enable the shutdown privilege in the access token of this<br> // process.<br> AdjustTokenPrivileges(hdlTokenHandle,<br> False,<br> tkp,<br> Sizeof(tkpNewButIgnored),<br> tkpNewButIgnored,<br> lBufferNeeded);<br><br> end;<br><br><br>procedure TForm1.Button1Click(Sender: TObject);<br>begin<br> AdjustToken;<br> ExitWindowsEx((EWX_SHUTDOWN Or ewx_poweroff), 0);<br><br>end;<br><br>procedure TForm1.Timer1Timer(Sender: TObject);<br>begin<br><br>if ((formatdatetime('dddd',now)='星期六') and (formatdatetime('h',now)='4')) then<br> begin<br> AdjustToken;<br> ExitWindowsEx((EWX_force Or ewx_shutdown or ewx_poweroff), 0);<br> end;<br>end;<br>end.<br><br>MICROSOFT CODE WINDOWS 2K<br>BOOL MySystemShutdown()<br>{<br> HANDLE hToken; <br> TOKEN_PRIVILEGES tkp; <br> <br> // Get a token for this process. <br> <br> if (!OpenProcessToken(GetCurrentProcess(), <br> TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) <br> return( FALSE ); <br> <br> // Get the LUID for the shutdown privilege. <br> <br> LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, <br> &tkp.Privileges[0].Luid); <br> <br> tkp.PrivilegeCount = 1; // one privilege to set <br> tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; <br> <br> // Get the shutdown privilege for this process. <br> <br> AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, <br> (PTOKEN_PRIVILEGES)NULL, 0); <br> <br> if (GetLastError() != ERROR_SUCCESS) <br> return FALSE; <br> <br> // Shut down the system and force all applications to close. <br> <br> if (!ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE, 0)) <br> return FALSE; <br><br> return TRUE;<br>}<br>