extern Atom XA_TARGETS, XA_DONE; extern Atom _MOTIF_EXPORT_TARGETS; extern Atom _MOTIF_CLIPBOARD_TARGETS; extern Atom _MOTIF_DEFERRED_CLIPBOARD_TARGETS; extern Atom _MOTIF_SNAPSHOT; extern Atom _MOTIF_LOSE_SELECTION; extern Atom XA_FILE_NAME, XA_FILE; extern Atom _NETSCAPE_URL; extern Atom MIME_TEXT_URI_LIST; Atom sel_unique_atom(Widget widget); void selection_dest(Widget w, XtPointer ignore, XtPointer call_data); void selection_convert(Widget widget, XtPointer ignore, XtPointer call_data); void ipc_ac(Widget widget, XEvent *event, String *argv, Cardinal *argc); void dnd_add(Widget widget); void ipc_init(void);