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Annotation of q_a/samples/bob/readme.txt, revision 1.1

1.1     ! root        1:  Sample: BOB (Big Orange Button)
        !             2: 
        !             3: Summary:
        !             4: 
        !             5: The BOB sample demonstrates the steps necessary to reboot
        !             6: or shutdown the machine in Win32/NT and Win32s/MS-DOS
        !             7: programmatically. A very similar method can be used to log
        !             8: a user off. Basically the steps necessary are as follows
        !             9: 
        !            10: 1) Check to see if the machine is running Win32/NT; if so
        !            11: 
        !            12: a) first get the security token.
        !            13: b) Fetch the LUID for the SeShutdownPrivilege; this is only
        !            14:    required for rebooting and shutting down the machine.
        !            15: c) Enable the shut down privilege.
        !            16: 
        !            17: 2) Use ExitWindowsEx() to log off, shut down or reboot the
        !            18:    machine.
        !            19: 
        !            20: More Information:
        !            21: 
        !            22: Obviously one should use this API with care *and* with plenty
        !            23: of warning so a user is not rudely surprised.
        !            24: 
        !            25: There are two methods of preventing the system from shutting
        !            26: down one is at the App level and the other the System level.
        !            27: At the application level what one needs to process is the
        !            28: WM_QUERYENDSESSION so it can ask the user if they wish to save
        !            29: any data which has not been back up to disk. Finally return
        !            30: TRUE assuming the process can shut down safely or FALSE if
        !            31: it can not (NOTE this will not keep one from dying if the
        !            32: parameter to ExitWindowsEx() was or'ed with EXW_FORCE).
        !            33: At the system level one is able to remove the rights of
        !            34: certain users/groups to reboot the machine. This is done
        !            35: via the UserManager applet.
        !            36: 
        !            37: Enjoy

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