Jump to content
Sign in to follow this  
jpassmore

Using $STDOUT_CHILD causing window to not display

Recommended Posts

jpassmore

Ok, I have a simple thing that is driving me crazy. I have to automate a command line based application.

I use a call like:

$pid = Run(@Comspec,"c:\MyAppPath\",@SW_SHOW)

This will launch the command window and all is well except I cannot capture stderr

So... I add that in like so:

$pid = Run(@Comspec,"c:\MyAppPath\",@SW_SHOW,$STDOUT_CHILD)

Now the window flashes up then disappears and I cannot capture the stdout correctly. Why is the window going away when I add the call to $STDOUT_CHILD?

Share this post


Link to post
Share on other sites
BrewManNH

Did you add #include <Constants.au3> to your script? Without it, you're going to get an error because the variable name won't be declared.


If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag Gude
How to ask questions the smart way!

I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from.

Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays.  -  ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script.  -  Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label.  -  _FileGetProperty - Retrieve the properties of a file  -  SciTE Toolbar - A toolbar demo for use with the SciTE editor  -  GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI.  -   Latin Square password generator

Share this post


Link to post
Share on other sites
jpassmore

Yes, I have the #include <Constants.au3> call in it.

Share this post


Link to post
Share on other sites
jpassmore

There are no errors, it just makes the command window flash on then off. take out the call to $STDOUT_CHILD and it works again.

Share this post


Link to post
Share on other sites
BrewManNH

Relooking at the code you posted, you're only running cmd? Is there anything else being run by this? Can you post a reproducer script that shows the problem, because all that will do is open the command console?


If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag Gude
How to ask questions the smart way!

I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from.

Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays.  -  ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script.  -  Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label.  -  _FileGetProperty - Retrieve the properties of a file  -  SciTE Toolbar - A toolbar demo for use with the SciTE editor  -  GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI.  -   Latin Square password generator

Share this post


Link to post
Share on other sites
kylomas

jpassmore,

As BrewmanNH says, you are not executing anything except the command processor. The following is an example of running ipconfig and capturing the output.

#include <constants.au3>

local $out

$rslt = Run(@ComSpec & " /c ipconfig /all ", @SystemDir, @SW_HIDE, $STDERR_MERGED + $STDOUT_CHILD)
While 1
    $out = StdoutRead($rslt)
    If @error then exitloop
    if stringlen($out) > 0 then consolewrite($out & @lf)
WEnd

kylomas


Forum Rules         Procedure for posting code

"I like pigs.  Dogs look up to us.  Cats look down on us.  Pigs treat us as equals."

- Sir Winston Churchill

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×