WINEXEC - Wait for completion..

In the 16 bit world we used to be able to wait for process terminations by calling GetModuleUsage.  Doesn't work in Win32...
How do I wait for a process (that I launched) to complete?  I want to synchronize some launches.  
I have looked at WaitForSingleObject and it doesn't seem to work.  Help.
LVL 2
icampbe1Asked:
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.

sperlingCommented:
Use CreateProcess to start the process, and WaitForSingleObject to wait for the process *handle*.


function ExecAndWait (AProgram : STRING) : BOOLEAN;
var
  StartupInfo : TStartupInfo;
  ProcessInfo : TProcessInformation;
begin
  FillChar (StartupInfo, SizeOf(StartupInfo), 0);
  StartupInfo.cb := SizeOf(StartupInfo);
  Result := CreateProcess (
    nil,
    PChar(AProgram),
    nil,
    nil,
    FALSE,
    0,
    nil,
    nil,
    StartupInfo,
    ProcessInfo);
  if Result then begin
    WaitForSingleObject(ProcessInfo.hProcess, INFINITE);
    CloseHandle(ProcessInfo.hProcess);
    CloseHandle(ProcessInfo.hThread);
  end;
end;


This function attempts to start the program. If it could not be started, return value will be FALSE. If it was started, the function waits for the process to terminate, and then returns TRUE.

Regards,

Erik.

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
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.