Dirk,
You should be able to call the GetTickCount API function through the
P/Invoke layer. This will give you the number of ticks that have elapsed
since the system was turned on. You can then get the system resolution
through a call to the GetSystemTimeAdjustment function as well.
However, in the documentation for the GetTickCount function, it states:
To obtain the time elapsed since the computer was started, retrieve the
System Up Time counter in the performance data in the registry key
HKEY_PERFORMANCE_DATA. The value returned is an 8-byte value. For more
information, see Performance Monitoring.
So you should use the registry classes (or the performance counter
classes) to access this information.
Hope this helps.
