[Tuxpaint-devel] Execution terminating

[foo-script <foo...@o2...>]

How to let TuxPaint know, that something went wrong, eg. memory couldn't be allocated? I suppose that using perror, just like usually man does, is not allowed. There's TOOLNAME_shutdown function but returns void, so how to note that an error occured? Is printing to stderr allowed?

Best,
Adam