Bug on TProcess with internal command?

[bonmario]

Hi,
i'm using the code in this wiki: http://wiki.lazarus.freepascal.org/Executing_External_Programs#An_Improved_Example

I've only changed this line:

Code: [Select]

AProcess.CommandLine := 'ppc386 -h';
with this:

Code: [Select]

AProcess.CommandLine := 'dir r:';
Running the program i have this error:

Code: [Select]

Failed to execute dir r: : 2.
It's a bug with internal command?

Thanks, Mario

[Leledumbo]

It's a bug with internal command?

No, since TProcess isn't a shell and it's platform independent. It doesn't have any internal commands.

You can use cmd's /K option to do this, e.g.:

Code: [Select]

AProcess.CommandLine := 'cmd /K dir r:';


[bonmario]

I've used "cmd /c" instead of "cmd /k", and now works.
Thanks for your help, Mario

[Leledumbo]

I've used "cmd /c" instead of "cmd /k", and now works.

Oops, sorry. I've got them mixed in my head

[Bart]

And this will fail under win9x of course.

Bart

[bonmario]

I haven't a PC with win9x, but i think that you must use "command.com /c"

Hi, Mario

[Bart]

In the good old days of DOS you would inspect the value of the environmentvariable COMSPEC.

This environmentvariable still exists in WinXP (and "points to" cmd.exe), not sure about later Windows versions though.

Bart

[Marc]

yup

....
ComSpec=C:\WINDOWS\system32\cmd.exe
....

(XP64)