Getting Process Information from Process Handle

Question

I need to get the PROCESS_INFORMATION of an external process for use in my application, I have the process handle and process ID, but I don't know how to go about getting the PROCESS_INFORMATION out of that.

I'm using C++(11), Visual Studio 2012, running on Windows. Any help would be greatly appreciated.

Answer 1

PROCESS_INFORMATION is filled by CreateProcess(). That ship has sailed; the process was already started.

Let's focus on what you really want to do. To find out if a process has terminated, first use OpenProcess() to obtain a handle to the process. You'll need the PID, which you already have. Then WaitForSingleObject() will tell you if it is terminated. Pass INFINITE for the 2nd argument to block until the process terminates. Pass 0 if you want to poll. Finally, use CloseHandle() to clean up.