[Newbies] ProcessWrapper on Windows - Can't get OSProcess/CommandShell to work

[Chris Cunningham]

Sorry about that.  That is an extension that I've added - I'll push it out
eventually.

In the meantime, you can either use
shellOpen:
or
shellExecute: nil lpOperation: 'open' lpFile: fn lpParameters: nil
lpDirectory: nil nShowCmd: 0.

On Thu, Sep 27, 2018 at 3:33 PM John-Reed Maffeo <jrmaffeo at gmail.com> wrote:

> cbc, your answer was helpful. I now have FFI loaded with the Win32
> extensions.  I tried the example you provided but it failed; there is no
> shellExecute:  method in what I downloaded, only  the method
> "shellExecute:  lpOperation:  lpFile:  lpParameters:  lpDirectory:
> nShowCmd: ".
>
> I will try some other experiments with  the long shellExecute method and
> see if I can get it to work for me.
>
> thanks,
>
> -jrm
>
>
> On Thu, Sep 27, 2018 at 1:52 PM Chris Cunningham <cunningham.cb at gmail.com>
> wrote:
>
>> The correct way to load FFI is to load it from SqueakMap, update, in the
>> mid left panel bring up the menu and unselect "New safely-available
>> packages", and then install head.  Answer yes to installling something not
>> compatible with your current system (it is, just the map package hasn't
>> been changed to say it is compatible).
>>
>> Once this is finished, FFI will be loaded.
>>
>> At this point, you still need to load the Win32 extentions.  Open the
>> Monticello Browser, click in the repository panel on the right, choosing "
>> http://source.squeak.org/FFI".  Open this repostiory.  In this
>> repository, choose the "FFI-Win32" package.  Pick the latest package
>> (currently FFI-Win32-nice.12.mcz) and load it.
>>
>> At this point Ron's example should work.  This will definitely work in a
>> 5.2 image.
>>
>> Now, Ron's example will either run the program will no results, or will
>> error out if it can't run, I believe.  Try it out first and see if it works
>> for you.
>>
>> If it doesn't, then maybe my exmaple (the is just an extension of what
>> Ron stated) will work:
>>
>> scanScript := ByteString streamContents: [:bs|
>> bs nextPutAll: 'my.exe > output.txt'); cr; lf.
>> bs nextPutAll: 'del '; nextPutAll: (fn := 'Scan', serverName, '.bat').
>> ].
>> file := FileStream newFileNamed: fn.
>> [file nextPutAll: scanScript] ensure: [file close].
>> Win32Shell new shellExecute: fn.  "execute runs without opening the
>> program window..."
>> dir := FileDirectory default.
>> [dir fileExists: fn] whileTrue: [(Delay forSeconds: 1) wait].
>> file := FileStream oldFileNamed: 'output.txt'.
>> raw := file contentsOfEntireFile. "closes file"
>> dir deleteFileNamed: outFn.
>> "Do something with raw - the results of the program my.exe"
>>
>> Of course, this should all just work with ProcessWrapper, but I switched
>> away from that a few years ago - I don't remember why.  Maybe I wanted lots
>> of concurrent programs running at once.
>>
>> -cbc
>>
>>
>> On Thu, Sep 27, 2018 at 12:24 PM John-Reed Maffeo <jrmaffeo at gmail.com>
>> wrote:
>>
>>> Ron,
>>> Thanks for the suggestion, however it did not work for me on a 5.2 image
>>> or a 4.1 image that I downloaded so I could test in the version you
>>> are using.
>>>
>>> I verified that I have the shell.dll file, but I don't see FFI or
>>> Win32Shell in either image.
>>> I can't find any useful documentation about Win32Shell.
>>> Web searches indicate that I might want to try loading Alien so I will
>>> give that a try and see what happens.
>>>
>>> jrm
>>>
>>> On Wed, Sep 26, 2018 at 12:50 PM Ron Teitelbaum <ron at usmedrec.com>
>>> wrote:
>>>
>>>> Hi JRM,
>>>>
>>>> Not sure how it's done today but on my 4.1 system, we do the following.
>>>>
>>>> result := Win32Shell new shellOpen: 'my.exe'.
>>>>
>>>> It uses FFI and shell32.dll
>>>>
>>>> All the best,
>>>>
>>>> Ron Teitelbaum
>>>>
>>>>
>>>> On Wed, Sep 26, 2018 at 2:48 PM John-Reed Maffeo <jrmaffeo at gmail.com>
>>>> wrote:
>>>>
>>>>> I have an application running on Mac which I am trying to port to run
>>>>> on Windows.
>>>>>
>>>>> PipeableOSProcess fails on an know issue.
>>>>>
>>>>> Is Process Wrapper a viable option? It requires adding
>>>>>  SmartSyntaxInterpreterPlugin, and ProcessWrapperPlugin.dll.
>>>>>
>>>>> All I want to do is run an .exe and capture the output.
>>>>>
>>>>> Any suggestions?
>>>>>
>>>>> - jrm
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