Question

ProcessExplorer somehow obtain this value and show it on Performance tab for each process… How to get it using Win32 API?

Solution:
In `Peak Private Bytes’ field, Process Explorer actually shows “Process\…\Page File Bytes Peak” performance counter. This value could be easily retrieved with PSAPI function GetProcessMemoryInfo.

Answer 1

GetProcessMemoryInfo gets you this:

PrivateUsage

The current amount of memory that cannot be shared with other
processes, in bytes. Private bytes include memory that is committed
and marked MEM_PRIVATE, data that is not mapped, and executable pages
that have been written to.