Every application can have its own exit codes, but 0 should always be used for success and 1 for error. Although there are exceptions. The Dos Find command for example returns 1 when the search was successfull but nothing was found.
You could use exit codes for example in batch files. The batch file runs a program and according to the exit code of that program the batch file executes the next command or application or what ever. The OS is not interested in the exit codes. ;) But maybe the batch file or program that executed the other app. I am using this feature for example in some of my LC app where i execute a 3rd party command line tool using shell(). 'The result' then contains the exit code. Important: If the exit code is 0 then 'the result' is empty. Here are some links with some more information Windows http://www.chebucto.ns.ca/~ak621/DOS/ExitCode.html Linux https://shapeshed.com/unix-exit-codes/ macOS https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/sysexits.3.html Regards, Matthias - Matthias Rebbe Life Is Too Short For Boring Code > Am 10.12.2020 um 05:51 schrieb J. Landman Gay via use-livecode > <use-livecode@lists.runrev.com>: > > I don't know much about this but it looks interesting. Is there a list of > exit codes somewhere? When the OS receives the exit code, what happens? I.e., > how would I use it? > -- > Jacqueline Landman Gay | jac...@hyperactivesw.com > HyperActive Software | http://www.hyperactivesw.com > On December 9, 2020 7:48:10 PM Mark Wieder via use-livecode > <use-livecode@lists.runrev.com> wrote: > >> On 12/9/20 5:32 PM, Douglas A. Ruisaard via use-livecode wrote: >>> On the completion of a stack, can the compiled executable return an error >>> code like the old DOS ErrorLevel value(s)? If so, how do you specify the >>> error code? in the on closeStack call? >> >> See the quit command in the dictionary. >> >> quit 42 >> >> -- >> Mark Wieder >> ahsoftw...@gmail.com >> >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode > > > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
