Hello, I'm using GTree and GHashTable to store bytes as data (via provided type conversion macros like GINT_TO_POINTER). Lookup functions return NULL if the key was not found. Does this mean that one can't use the type conversion trick to store data for which 0 is a valid value? With kind regards, Baurzhan. _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list