Re: [Fxruby-users] gdb and FXRuby

[Lyle J. <ly...@kn...>]

Joel VanderWerf wrote:

>
> I'm trying to debug a fxerror message that my ruby program generates. 
> The message is "FXDCWindow::drawIcon: illegal icon specified." The 
> icon works fine in other contexts, so I'm suspecting FXRuby. 

Are you sure that you've called create() on the icon before using it?

> I'd like to be able to step into the routines that generate the 
> message, to see what the problem is, but I'm not able to 'list' from 
> gdb, even after selecting the correct frame. The listing just shows 
> the main() of ruby. 

I guess the obvious question is, did you compile FOX & FXRuby with 
debugging info (-g)? Also, I can't remember if the extconf.rb or 
install.rb scripts try to strip the shared object file of its symbols 
before they install it; you might need to check for that.

> The 'sharedlibrary fox' command tells me that symbols for fox.so have 
> already been loaded. 

OK.

> Any suggestions?

Not right offhand. As I noted earlier, if you're sure the icon file 
itself is OK, I'd double check to see if it has been create-ed yet. That 
is pretty much always the source of the error message you're describing...