Solved

´"Stop" motherapp. after launching with Createprocess..

Posted on 1998-01-25
4
165 Views
Last Modified: 2010-04-04
I use Createprocess to launch an external application. However, I want the "Mother-process" (the app. that I use to Launch) to execute some lines of code after the launched application is closed..

Like this:

Procedure Form1.Button1Click(Sender: TObject);
// Var declaration..
Begin
Createprocess(PChar(Process_To_Launch),NIL,NIL,NIL,False,
Normal_Priority_Class,NIL,Startup_Info,Process_Info);

// some lines of code that I want to be executed after the
// Process_To_Launch is closed down.
// For example:

ShowMessage('The Process is closed down');

End;

The problem is that the external application is launched,
and then the following rows of code is executed directly,
Without waiting for the launched application to finish..

Is this the way to do it, or do I have to create some event-
handling for this, in short: How do I do it?

I use Delphi Developer 2.0
Thanks!
Erik N
0
Comment
Question by:Erik N
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 

Author Comment

by:Erik N
ID: 1357522
Edited text of question
0
 

Author Comment

by:Erik N
ID: 1357523
Edited text of question
0
 
LVL 5

Accepted Solution

by:
inter earned 140 total points
ID: 1357524
Dear friend,

Use the following function and loop to wait for the process termination:(The Process_Info structure is the one you obtained by CreateProcess)

 repeat
   GetExitCodeProcess(Process_Info.hProcess, lpExitCode);
   Application.ProcessMessages;
 until (lpExitCode <> STILL_ACTIVE);

 // Your code goes here (after process terminated)

 May it helps,
 Igor
0
 

Author Comment

by:Erik N
ID: 1357525
It worked just fine!
Thank you Inter-Igor!

Erik N
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
Suggested Courses
Course of the Month10 days, 5 hours left to enroll

624 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