From: james@... (James Adam)
Date: 2003-04-03T01:31:38+09:00
Subject: FXRuby 1.0.21 FXOptionMenu problem

Hi

I've got a bit of a problem using the FXOptionMenu widget in FXRuby

here's my setup:
ruby-1.6.8
FXRuby-1.0.21
fox-1.0.36

Basically, whenever I use an FXOptionMenu, or specifically an FXOption
to which i then ".connect(SEL_COMMAND)" some code to, changing to that
option when the app is running results in the following error being
printed out on the commandline:

FXRuby.cpp(667): FXASSERT(FALSE) failed.

Looking into FXRuby.cpp, this assertion is at the tail end of
FXRbConvertMessageData, and seems to indicate that the 'type' of the
sel (of |sender, sel, ptr| fame) is not recognised - it *should* be a
SEL_COMMAND, so that makes sense given the code - so the 'sender' is
of an unknown FXMETACLASS. Again scanning through this code, there is
no 'else if' clause for FXOption (nor FXLabel, it's superclass). I
hope this gives someone (lyle? pleeeeeeeease? ;) some clues, it's
about as far as I can get withuot really getting stuck into the fox
code.

I've replicated this with my own software and also, after
investigation, with the FXRuby example programs - dctest.rb produces
this and uses FXOption.connect(SEL_COMMAND), whilst dialog.rb uses a
'neutered' FXOptionMenu whose commands don't do anything, and it
doesn't exhibit this error.

Firstly is this just my setup? Can anyone replicated this problem? And
secondly, any idea how to sort it?

[nb. as an aside, it seems to trigger segfaults within random OpenGL
calls, usually resulting in [BUG] rb_gc_mark() errors. this might just
be my code, but then i 'neuter' the FXOptionMenu the problem
disappears]

Thanks as usual in advance,

- James Adam