gdk_pixbuf_composite_color_simple() can return NULL...

[muppet <scott asofyet org>]

gdk_pixbuf_composite_color_simple() can return NULL when  
gdk_pixbuf_new() fails.  gdk_pixbuf_new() can fail when the system  
can't allocate enough memory for the image data.

Currently, both functions are bound with the return type  
GdkPixbuf_noinc*, which will croak with a message to the effect of  
"NULL is not a valid GObject."  Is this expected behavior?  Should we  
just leave that alone, do something special to give those functions  
an appropriate exception, or just use GdkPixbuf_noinc_ornull* and  
allow those functions to return undef to the caller without an  
explanation?

--
However, like all drugs, PANEXA can produce some notable side  
effects, all of which are probably really, really terrific and  
nothing that anyone should be concerned about, let alone notify any  
medical regulatory commission about.
  -- http://www.panexa.com