Solved

Shutdown in Windows NT

Posted on 1999-01-05
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203 Views
Last Modified: 2010-04-02
Windows NT 4.0
C++ 5.0

I'd like to restart the system from a C++ program.
I've found functions like

  InitiateSystemShutdown or ExitWindowsEx

Please give me an example-code with all inlcudeFiles I need.

Thanks
    Juerg
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Question by:juerg
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9 Comments
 
LVL 13

Expert Comment

by:Mirkwood
ID: 1181524
Here are some basic examples
http://www.ppdonline.com/demos/restart.htm
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Author Comment

by:juerg
ID: 1181525
Thanks to Mirkwood for this very fast Comment, but the example is Visual Basic and I need a C++ Example (I know nothing about Visual Basic).
Thanks anyway
Juerg
0
 
LVL 11

Expert Comment

by:alexo
ID: 1181526
Check the following URLs:
  http://premium.microsoft.com/msdn/library/sdkdoc/sysmgmt/shutdown_5g6q.htm
  http://premium.microsoft.com/msdn/library/sdkdoc/sysmgmt/shutdown_5q25.htm

[The first time you access MSDN-online you'll have to go through a one-time registeration process]

You don't need specific include files, just the regular:

    #define STRICT
    #include <windows.h>

And the actual call is something like:

    ExitWindowsEx(EWX_SHUTDOWN, 0);

Is that wnat you need?
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LVL 32

Expert Comment

by:jhance
ID: 1181527


            // Reboot Windows NT
            HANDLE hToken;
            TOKEN_PRIVILEGES tkp;
            char szBuf[100];

        if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) {
            wsprintf(szBuf, "OpenProcessToken Error #%d", GetLastError ());
            AfxMessageBox(szBuf, MB_OK);
                  EndDialog(IDC_REBOOT);
        }

        // Get the LUID for shutdown privilege
        if(!LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid)){
            AfxMessageBox("LookupPrivilegeValue() FAILED", MB_OK);
                  EndDialog(IDC_REBOOT);
        }
        else{
            tkp.PrivilegeCount = 1;  // one privilege to set
            tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
        }

            // Get shutdown privilege for this process.
        if (!AdjustTokenPrivileges(hToken, FALSE, &tkp, NULL, NULL, NULL)){
            wsprintf(szBuf, "AdjustTokenPrivileges Error #%d", GetLastError ());
            AfxMessageBox(szBuf, MB_OK);
                  EndDialog(IDC_REBOOT);
        }

        if(GetLastError() != ERROR_SUCCESS){
            wsprintf(szBuf, "AdjustTokenPrivileges() failed for reason %d", GetLastError());
            AfxMessageBox(szBuf, MB_OK);
                  EndDialog(IDC_REBOOT);
        }
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LVL 32

Expert Comment

by:jhance
ID: 1181528
Oops,

I left out the last part of this....



            if(!InitiateSystemShutdown(NULL, "Shutting Down...", 5, bForceReboot, FALSE)){
                  wsprintf(szBuf, "Error %d in InitiateSystemShutdown()", GetLastError());
              AfxMessageBox(szBuf, MB_OK);
                  EndDialog(IDC_REBOOT);
            }
0
 

Author Comment

by:juerg
ID: 1181529
Help me !

After the comment from alexo at 7:22, I tried again and it works.
Now (a few minutes later) there is an asnwer from another.

I would't like to give the points to alexo, because after his comment it was OK.

Please answer what to do

Juerg
0
 
LVL 32

Expert Comment

by:jhance
ID: 1181530
1) Reject the currently posted answer.
2) Ask alexo to post an answer to this question.
3) Accept his answer.
0
 

Author Comment

by:juerg
ID: 1181531
Thanks jhance
Excuse me, but alexo was faster

to alexo, please give an answer

Juerg
0
 
LVL 11

Accepted Solution

by:
alexo earned 50 total points
ID: 1181532
>> to alexo, please give an answer
Done!  I'm glad it works for you.

BTW, jhance's answer is more general, in that it can be used to shutdown a remote workstation with only minor modifications.
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