How to get the number of CPU cycles used by a process

Question

I have a need to get the number of CPU cycles used by a specific process using C# (or VB.Net). This information is available in the Process properties popup within Sysinternal\

Answer 1

Process Explorer calls QueryProcessCycleTime to get that information. You will probably have to use P/Invoke to call it. I would expect its P/Invoke signature to look like:

[DllImport("kernel32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool QueryProcessCycleTime(IntPtr ProcessHandle, out ulong CycleTime);