What function can be used to convert int PID to Handle?

Question

C++ / C#

Good evening.
The question is when creating a process, one of the processes receives a PID in the form of an int, and WaitForSingleObject needs a handle.
It seems like there is a function with which you can get it. That is, knowing the PID, find out the handle /
Thank you.

Answer 1

HANDLE processHandle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, processId);
CloseHandle(processHandle);

Answer 2

CreateProcess, last parameter: processInfo.hProcess.
https://stackoverflow.com/questions/42531/how-do-i...