C# - Check if Handle is active

Question

There is a Task Manager alternative called "ProcessHacker". With that you can check if a Handle is active and running.

I would like to add something like that into my C# program, searching for a specific Handle and if Handle exist do smth...

Is there a reference, nuget or smth I can use?

Thanks for any help :)

This? https://stackoverflow.com/questions/3019066/get-all-window-handles-for-a-process/22440420 — Rand Random, Oct 08 '21 at 14:48
Call `Process.GetProcesses()` and iterate over all the processes? — Matthew Watson, Oct 08 '21 at 14:50
Also if you already have a specific handle, you can just open the process directly by using `Process.GetProcessById(handle)`. NOTE: Your application will likely require admin rights before it can modify some processes. — Matthew Watson, Oct 08 '21 at 14:51

Cetin Basoz · Answer 1 · 2021-10-08T14:55:45.147

2

var process = Process.GetProcesses().Where(p => p.Handle.ToInt32() == 0x3b4);

As Matthew Watson noted:

var process = Process.GetProcessById(0x3b4);

would directly get that process with handle. Former's result is an IEnumerable.

edited Oct 08 '21 at 14:55

answered Oct 08 '21 at 14:52

Cetin Basoz

Or `var process = Process.GetProcessById(0x3b4);` – Matthew Watson Oct 08 '21 at 14:53
@MatthewWatson, exactly. I wanted to show how would that be with other properties too. Where result would be an IEnumerable BTW. – Cetin Basoz Oct 08 '21 at 14:54
thanks a lot that works :) – Yuuta Oct 08 '21 at 14:55

1 Answers1