Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Get Process ID from MainWindowHandle

Posted on 2009-05-08
2
Medium Priority
?
1,164 Views
Last Modified: 2013-11-08
I am attempting to kill a process by using the processID.  I can seem to do this by the process name, but I need to be able to do this by the actual processID since I will have multiples running with the same name I can not kill.  For some reason they are all returning a processID = 0, even when I set the window to visible.  If I debug and look at all the processes collected in the getprocesses() method and take a look at the processes that have open windows (i.e. notepad) they have zero as mainwindowhandle.
private Int32 GetCurrentExcelProcessID()
        {
 
            Process[] aProcesses = Process.GetProcesses();
 
            Int32 processID = 0;
 
            bool originalVisibility = commXl.Visible;
 
            commXl.Visible = true;
 
 
 
            for (int i = 0; i <= aProcesses.GetUpperBound(0); i++)
 
            {
 
                if (aProcesses[i].MainWindowHandle.ToString() == commXl.Hwnd.ToString())
 
                {
 
                    processID = aProcesses[i].Id;
 
                    break;
 
                }
 
            }
 
            commXl.Visible = originalVisibility;
 
            return processID;
 
        }
 
 
 
        private void KillCurrentExcelProcess()
 
        {
 
            Process[] aProcesses = Process.GetProcesses();
 
            Process aProcess = null;
 
 
 
            for (int i = 0; i <= aProcesses.GetUpperBound(0); i++)
 
            {
 
                if (aProcesses[i].Id.ToString() == currProcID.ToString())
 
                {
 
                    aProcess = aProcesses[i];
 
                    break;
 
                }
 
            }
 
 
 
            try
 
            {
 
                if (aProcess != null)
 
                {
 
                    aProcess.Kill();
 
                }
 
            }
            catch { }
        }
    }

Open in new window

0
Comment
Question by:dtadin
2 Comments
 
LVL 19

Expert Comment

by:elimesika
ID: 24345663
HI

This is a known problem
Try to use WIN32 API GetMainProcessWindow(<processId>) instead of aProcesses[i].MainWindowHandle
0
 
LVL 4

Accepted Solution

by:
TMarkham1 earned 750 total points
ID: 24704397
elimeskika:

I looked through the Windows API Reference on MSDN, and I don't see a function named GetMainProcessWindow in the entire API (unless I am looking in the wrong place).

I've seen this "GetMainProcessWindow" functionality offered up as a solution a few times in web searches I've done, but none of them went beyond a basic suggestion of "Try the WIN32 API GetMainProcessWindow instead of MainWindowHandle".

Have you personally implemented your suggestion in the past using the .Net Framework? If so, how about a code example?
0

Featured Post

Transaction-level recovery for Oracle database

Veeam Explore for Oracle delivers low RTOs and RPOs with agentless transaction log backup and transaction-level recovery of Oracle databases. You can restore the database to a precise point in time, even to a specific transaction.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Wouldn’t it be nice if you could test whether an element is contained in an array by using a Contains method just like the one available on List objects? Wouldn’t it be good if you could write code like this? (CODE) In .NET 3.5, this is possible…
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
This Micro Tutorial will teach you how to add a cinematic look to any film or video out there. There are very few simple steps that you will follow to do so. This will be demonstrated using Adobe Premiere Pro CS6.
This video shows how to quickly and easily deploy an email signature for all users in Office 365 and prevent it from being added to replies and forwards. (the resulting signature is applied on the server level in Exchange Online) The email signat…
Suggested Courses
Course of the Month15 days, 23 hours left to enroll

580 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question