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Measure Idle Time

I would like to measure the idle time the same way a screen saver does. I want to do this for different operating systems; linux, mac os x, windows. I also want to know whether a pc is connected to some network or is totally disconnected for the types of operating systems mentioned earlier.
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kkonst04
Asked:
kkonst04
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2 Solutions
 
grayeCommented:
I don't think you're gonna find a single answer to fit all of the OS's you mentioned.

From a Windows perspective, the API that is used by the screen saver is GetLastInputInfo, detecting the existance of a network, the API is typically WNetGetNetworkInformation

DWORD WNetGetNetworkInformation(
  LPCTSTR lpProvider,
  LPNETINFOSTRUCT lpNetInfoStruct
);

typedef struct tagLASTINPUTINFO {
    UINT cbSize;
    DWORD dwTime;
} LASTINPUTINFO, *PLASTINPUTINFO;

BOOL GetLastInputInfo(
    PLASTINPUTINFO plii
);
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Arno KosterCommented:
You could try to ping a list of computers. Depending on the output you can determine whether the computer is online or not

this can be done in most languages, ranging from (visual)basic and batch to java or C

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Arno KosterCommented:
the 4 days are not over yet ?
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grayeCommented:
Sounds like you should volunteer to help administer the site...
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