1. Win32Lib: how run another program?
- Posted by Dan B Moyer <DANMOYER at PRODIGY.NET>
Aug 30, 2000
-
Last edited Aug 31, 2000
How can I make another Euphoria program run from within one that is running?
I tried looking at David Cuny's IDE, which runs the program under
development, but I don't really understand what it means. Here's what I
found that apparently does it:
result = system_exec( "exw \"" & fName & "\"", 2 )
what I specifically don't understand is the "exw\" & the "\" & the 2
<sickly grin>
Dan
2. Re: Win32Lib: how run another program?
- Posted by Kat <gertie at PELL.NET>
Aug 30, 2000
-
Last edited Aug 31, 2000
On 30 Aug 2000, at 20:53, Dan B Moyer wrote:
> How can I make another Euphoria program run from within one that is running?
> I tried looking at David Cuny's IDE, which runs the program under
> development, but I don't really understand what it means. Here's what I
> found that apparently does it:
>
> result = system_exec( "exw \"" & fName & "\"", 2 )
>
> what I specifically don't understand is the "exw\" & the "\" & the 2
> <sickly grin>
What i'd like to know is: does windoze start fName and come right back to the
next
line after that, leaving fName to go on about it's business as a standalone
application?
)
Kat,
hoping!
3. Re: Win32Lib: how run another program?
- Posted by Dan B Moyer <DANMOYER at PRODIGY.NET>
Aug 30, 2000
-
Last edited Aug 31, 2000
Kat,
I would guess NOT, (though I could be wrong), at least as it's implemented
in David's IDE, 'cause if you run an app under development there (AUD), you
can't close out the IDE & have the app running by itself, you have to close
the app & then the IDE. Could be another way to use the command, maybe,
though, that would do it. I'd be satisfied to just know how to use the
command in the fashion he did. :)
Dan
----- Original Message -----
From: "Kat" <gertie at PELL.NET>
To: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Sent: Wednesday, August 30, 2000 9:40 PM
Subject: Re: Win32Lib: how run another program?
> On 30 Aug 2000, at 20:53, Dan B Moyer wrote:
>
> > How can I make another Euphoria program run from within one that is
running?
> > I tried looking at David Cuny's IDE, which runs the program under
> > development, but I don't really understand what it means. Here's what I
> > found that apparently does it:
> >
> > result = system_exec( "exw \"" & fName & "\"", 2 )
> >
> > what I specifically don't understand is the "exw\" & the "\" & the 2
> > <sickly grin>
>
> What i'd like to know is: does windoze start fName and come right back to
the next
> line after that, leaving fName to go on about it's business as a
standalone application?
> )
>
> Kat,
> hoping!
4. Re: Win32Lib: how run another program?
- Posted by Dan B Moyer <DANMOYER at PRODIGY.NET>
Aug 30, 2000
-
Last edited Aug 31, 2000
Jeeze!
Nevermind.
I can't believe I didn't even *think* to read the manual! And not only
that, but clicking on Euphoria programs to run them has made me completely
forget that "exw" is the NORMAL way to evoke the windows version of the
interpreter! Sigh! Two steps forward, one step backward (at least!).
Dan
(feeling sheepish)
----- Original Message -----
From: "Dan B Moyer" <DANMOYER at prodigy.net>
To: "Euphoria Mail List" <EUPHORIA at LISTSERV.MUOHIO.EDU>
Sent: Wednesday, August 30, 2000 8:53 PM
Subject: Win32Lib: how run another program?
> How can I make another Euphoria program run from within one that is
running?
> I tried looking at David Cuny's IDE, which runs the program under
> development, but I don't really understand what it means. Here's what I
> found that apparently does it:
>
> result = system_exec( "exw \"" & fName & "\"", 2 )
>
> what I specifically don't understand is the "exw\" & the "\" & the 2
> <sickly grin>
>
> Dan
>
5. Re: Win32Lib: how run another program?
On Wed, 30 Aug 2000 20:53:20 -0700, Dan B Moyer <DANMOYER at PRODIGY.NET>
wrote:
>How can I make another Euphoria program run from within one that is
running?
>I tried looking at David Cuny's IDE, which runs the program under
>development, but I don't really understand what it means. Here's what I
>found that apparently does it:
>
> result = system_exec( "exw \"" & fName & "\"", 2 )
>
>what I specifically don't understand is the "exw\" & the "\" & the 2
><sickly grin>
>
Dan:
I think what is confusing you is the \"
When ever you place double qoutes INSIDE a STRING the
interpter will not know which qoutation marks is the end of
of a string. Placing the \ ( escape character ) tells the interpter
to IGNORE the next double qoute because it is part of the text
and not the end of the string.
Bernie
6. Re: Win32Lib: how run another program?
> Here's what I
> > found that apparently does it:
> >
> > result = system_exec( "exw \"" & fName & "\"", 2 )
> >
> > what I specifically don't understand is the "exw\" & the "\" & the 2
> > <sickly grin>
>
> What i'd like to know is: does windoze start fName and come
> right back to the next
> line after that, leaving fName to go on about it's business
> as a standalone application?
Win32Lib wraps the API function ShellExecute, which, technically, is a
function (if I could get it to work properly). However, one of the quirks
of C, which Windows is written in, is that you are free to ignore the return
value of a function, so instead of:
linkFunc(), use linkProc()
Using the former would cause your program to wait until the app is closed
(this is how system_exec works), and the latter should behave as you (and I)
would like. Maybe Rob could implement an offshoot of system_exec that does
this? I've tried using system(), but it looks like Word opens up and
immediately closes.
Matt
7. Re: Win32Lib: how run another program?
> Win32Lib wraps the API function ShellExecute, which, technically, is a
> function (if I could get it to work properly).
( this is a rather 'simplified' wrap )
Check out my 'tutorial' engines.
Depending on which version you have, it's either Tutor3.exw,
... or WinTutor.exw. [ in my latest 'beta' ]
It uses shellExecute() for *everything*...
My address7.zip also uses shellExecute() to start an e-mail...
...and Kat, you might try shellExecute() with the following flag.
SW_SHOWMINNOACTIVE -- Displays the window as a minimized window. The active
window remains active.
...haven't tried it, but if a program opened this way actually *does*
anything while it's minimized, I suppose this is what you might be looking
for.
Wolf
8. Re: Win32Lib: how run another program?
> From: wolfgang fritz
>
> Check out my 'tutorial' engines.
> Depending on which version you have, it's either Tutor3.exw,
> ... or WinTutor.exw. [ in my latest 'beta' ]
> It uses shellExecute() for *everything*...
> My address7.zip also uses shellExecute() to start an e-mail...
>
> ...and Kat, you might try shellExecute() with the following flag.
>
> SW_SHOWMINNOACTIVE -- Displays the window as a minimized
> window. The active
> window remains active.
>
> ...haven't tried it, but if a program opened this way actually *does*
> anything while it's minimized, I suppose this is what you
> might be looking
> for.
Well, I sort of got it to work. One problem was that I wasn't using the
flags properly. Also, it doesn't seem to like command line arguments, like
"winword.exe document.txt".
To run and forget, you need to add:
xShellExecuteNoRet = linkProc( shell32, "ShellExecuteA", {C_LONG, C_LONG,
C_LONG, C_LONG, C_LONG, C_LONG} )
global procedure shellExecuteNoRet( sequence cmd, sequence file, atom style
)
-- call ShellExecute to display a file
atom result, file_string, cmd_string
-- convert to strings
file_string = allocate_string( file )
cmd_string = allocate_string( cmd )
-- call ShellExecute
c_proc( xShellExecuteNoRet,
{ getHandle( mainWindow ), cmd_string, file_string, 0, 0, style } )
-- free the strings
free( cmd_string )
free( file_string )
end procedure
The procedure is the same as shellExecute(), except it doesn't wait for the
exit code from windows.
Matt
9. Re: Win32Lib: how run another program?
not sure if this will do what you want, but u can try:
constant RunInBackGround = "start /m "
constant RunInForeGround = "start /max "
consant ProgramToRun = "C:\\directory\\program.exe"
procedure BGRun(sequence filename)
system(RunInBackGround & filename,2)
end procedure
procedure FGRun(sequence filename)
system(RunInForeGround & filename,2)
end procedure
code isnt tested, but i remember experimenting with
the "start" command in windows and being pleasantly
suprised...also i KNOW that i was using it at one
time in the past for EUServer...
hope this will work for u as u want it to...
typing "start /?" at a dos prompt will
give you more info about it...
--Hawke'
----- Original Message -----
From: Kat <gertie at PELL.NET>
To: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Sent: Wednesday, August 30, 2000 9:40 PM
Subject: Re: Win32Lib: how run another program?
> On 30 Aug 2000, at 20:53, Dan B Moyer wrote:
>
> > How can I make another Euphoria program run from within one that is running?
> > I tried looking at David Cuny's IDE, which runs the program under
> > development, but I don't really understand what it means. Here's what I
> > found that apparently does it:
> >
> > result = system_exec( "exw \"" & fName & "\"", 2 )
> >
> > what I specifically don't understand is the "exw\" & the "\" & the 2
> > <sickly grin>
>
> What i'd like to know is: does windoze start fName and come right back to the
> next
> line after that, leaving fName to go on about it's business as a standalone
> application?
> )
>
> Kat,
> hoping!
>
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