OpenEuphoria

Re: system_exec()

• Posted by Dan Moyer <DANIELMOYER at prodigy.net> Jul 15, 2003
• 538 views

----- Original Message -----
From: "Pete Lomax" <petelomax at blueyonder.co.uk>



>
>
> On Fri, 11 Jul 2003 16:03:27 +0200, Juergen Luethje <j.lue at gmx.de>
> wrote:
>
> >However, since I came across this issue, I'd like to know, whether or
> >not system() always calls another program asynchronously, and
> >system_exc() always does this synchronously. Just because I'd like to
> >know as much as possible about "my" programming language. 
> >
> >> Can you use the win api?
> >
> >Yes. As I mentioned, I have almost finished writing a routine, that
> >seems to be something like a self-written system_exec() function.
> >It uses the Win Api functions CreateProcess() and WaitForSingleObject().
> >But if system_exec() has the same functionality, why use a self-written
> >function instead?
>
> I've just remembered, I nicked "w32Func(jJumpto" from rundemos.exw
> (the one that comes with win32lib) for use in MEditor, I think it got
> rid of an annoying dos window briefly appearing when using system().

And in rundemos.exw, I nicked that "jJumpto =
define_c_func(lib,"ShellExecuteA"...", (and the "Jump_to" procedure that
uses it), from Wolfgang Fritz, who in turn got it from someone known as
"DaJaRo".  :)

Dan Moyer

>
> AFAIK, system_exec() always waits for the command to complete before
> returning the exit code from the program.
>
> Pete
>
>
>
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