Re: [Gtk2forpascal-devel] Problem with PGdkPixbufLoader

[<wan...@ya...>]

Yes, it works.
Thanks you so much, I learnt the knowledge from you.

Best regards,


 --- Jeff Pohlmeyer <yet...@ya...>
的正文：> >  In the following program, the "if" block
is
> exactly
> > the same as the "else" block except that in the
> "if"
> > block gdk_pixbuf_loader_get_pixbuf() is put into
> > getImage() function.
> 
> 
> Variables on the heap (global) are initialized to
> NIL;
> but variables on the stack (local) are not
> initialized, 
> they usually contain random garbage from
> who-knows-what.
> 
> 
> That is why you get the:
>    assertion `error == NULL || *error == NULL'
> failed
> 
> from the local "error" but not the global.
> 
> 
> Try this...
> 
>   function getImage(loader:PGdkPixbufLoader; var
> s:string):boolean;
>   var
>     error : pgerror;
>   begin
>     error:=nil; // <-- ADD THIS LINE !!!
>     result :=
>
gdk_pixbuf_loader_write(loader,@(s[1]),length(s),@error);
>   end;//getImage()
> 
> 
> 
> Hope this helps, 
> 
>  - Jeff 
> 
> 
> 
> 
> 	
> 		
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