https://ja.stackoverflow.com/questions/47840/windows-visual-studio-2015-c-%E3%81%A7%E3%82%B9%E3%83%AC%E3%83%83%E3%83%89%E3%81%AE%E3%82%B9%E3%82%BF%E3%83%83%E3%82%AF%E3%82%B5%E3%82%A4%E3%82%BA%E3%82%92%E5%8F%96%E5%BE%97%E3%81%99%E3%82%8B%E6%96%B9%E6%B3%95

別プロセスのスレッドのスタックサイズ取得.cpp

#include <chrono>
#include <thread>
#include <process.h>
#include <Windows.h>
#include <winternl.h>
#include <ProcessSnapshot.h>
using namespace std::literals;

int main(int argc, char *argv[]) {
	unsigned tid;
	auto thread = (HANDLE)_beginthreadex(nullptr, 128 * 1024, [](auto) -> unsigned {
		std::this_thread::sleep_for(10s);
		return 0;
	}, nullptr, 0, &tid);
	CloseHandle(thread);
	printf("_beginthreadex(): created thread id: %u\n", tid);

	printf("dump all stack sizes.\n");
	HPSS snapshot;
	auto pid = std::atoi(argv[1]);
	auto hProcess = OpenProcess(GENERIC_READ, FALSE,pid);
	PssCaptureSnapshot(hProcess, PSS_CAPTURE_THREADS, CONTEXT_ALL, &snapshot);
	HPSSWALK walk;
	PssWalkMarkerCreate(nullptr, &walk);
	for (PSS_THREAD_ENTRY te; PssWalkSnapshot(snapshot, PSS_WALK_THREADS, walk, &te, sizeof te) == ERROR_SUCCESS;) {
		auto pteb = reinterpret_cast<const TEB*>(te.TebBaseAddress);
		NT_TIB  teb = {};
		SIZE_T size;
		ReadProcessMemory(hProcess, pteb, &teb, sizeof(teb), &size);
		auto stack_size = static_cast<const char*>(teb.StackBase) - static_cast<const char*>(teb.StackLimit);
		printf(" tid: % 5u, % 7lldbytes\n", te.ThreadId, (LONGLONG)stack_size);
	}
	PssFreeSnapshot(hProcess, snapshot);
	return 0;
}