The GetThreadTimes function obtains timing information about a specified thread.
BOOL GetThreadTimes(
HANDLE hThread, |
// specifies the thread of interest |
LPFILETIME lpCreationTime, |
// when the thread was created |
LPFILETIME lpExitTime, |
// when the thread was destroyed |
LPFILETIME lpKernelTime, |
// time the thread has spent in kernel mode |
LPFILETIME lpUserTime |
// time the thread has spent in user mode |
); |
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
All times are expressed using FILETIME data structures. Such a structure contains two 32-bit values that combine to form a 64-bit count of 100-nanosecond time units.
Thread creation and exit times are points in time expressed as the amount of time that has elapsed since midnight on January 1, 1601 at Greenwich, England. The Win32 API provides several functions that an application can use to convert such values to more generally useful forms; see Time and Date Functions, and the functions noted in the following See Also section.
Thread kernel mode and user mode times are amounts of time. For example, if a thread has spent one second in kernel mode, this function will fill the FILETIME structure specified by lpKernelTime with a 64-bit value of ten million. That is the number of 100-nanosecond units in one second.
FILETIME, FileTimeToDosDateTime, FileTimeToLocalFileTime, FileTimeToSystemTime
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