Get Process Status with WinApi in C (Active or Not)

Question

At my operating system course in a project we have to get process status. We are coding with c.

Example output:

Process No Process Id Program Name Status Handle Count

1          5780       notepad.exe  ACTIVE 1

How can i get status and handle count?

They just told you to do it without giving you any idea how? Wow! What does that "status" actually mean? — Gabe, Oct 11 '11 at 17:19
Given what inputs? What info do you already have about the process? — tenfour, Oct 11 '11 at 17:20
Well... i'd say that if a process with that pid exists... it's active. — Luchian Grigore, Oct 11 '11 at 17:22
we are creating child process in an program and we save their pid and other data in a linked list. When user want to look created child process output will be like example output. — Ömer Faruk AK, Oct 11 '11 at 17:22
@LuchianGrigore: If the process has exited but a handle to it is still open (as is likely in this case), it will have a PID but not be active. — Gabe, Oct 11 '11 at 17:25
EnumProcesses should do what you want. (Hasturkun's answer works for the status) — , Oct 11 '11 at 19:00

Hasturkun · Accepted Answer · 2011-10-11T17:37:04.313

2

Get a process handle using OpenProcess with PROCESS_QUERY_INFORMATION as the desired access (or use a handle previously obtained, possibly from CreateProcess), then try to get its termination status using GetExitCodeProcess. If it returns STILL_ACTIVE, the process has not terminated yet, otherwise it has. Don't forget to close the handle using CloseHandle

edited Oct 11 '11 at 17:37

answered Oct 11 '11 at 17:31

Hasturkun

33,910
5
73
99

score 0 · Answer 2 · edited May 23 '17 at 10:28

0

The first 2 or 3 columns are more or less trivial. Look up msdn for process enumeration.
Handle enumeration is a bit trickier, but also doable, see these: link1 link2

edited May 23 '17 at 10:28

Community

1
1

answered Oct 11 '11 at 17:32

Alexey Frunze

59,618
10
77
173

Get Process Status with WinApi in C (Active or Not)

2 Answers2