Detect when an application...


   How can i detect when an application starts and
   how when finish???

                 !!!Thanks for your time!!!

    e-mail: scortega@javercol.javeriana.edu.co
kort77Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

paulo_psaCommented:
Hi kort77,

Use HPrevInst to analize the handle of previous instance. If "0"  then the application run just once.

Note: You need add the units(Dialogs and WinProcs).

program Project1;

uses
  Forms,
  Dialogs,
  WinProcs,
  Unit1 in 'UNIT1.PAS' {Form1};

{$R *.RES}

begin
  if HPrevInst = 0 then
  begin
    Application.CreateForm(TForm1, Form1);
    Application.Run;
  end else
  begin
    ShowMessage('Application is already running');
    SetFocus(FindWindow('TForm1', nil));
  end;

end.

Regards
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
mmmbeerCommented:
Hiya kort77.  If you're looking to track the start and stop of programs other than yours, a good way to do THAT is to SetWindowsHookEX with the WH_SHELL parameter.  Then, you'll get a callback for every top-level window created.  I'd assume from there that you should be able to determine when apps start and stop.

0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Delphi

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.