74   *registry = (SplayTreeInfo *) NULL;  variable
154   if (registry == (void *) NULL)  in DeleteImageRegistry()
156   return(DeleteNodeFromSplayTree(registry,key));  in DeleteImageRegistry()
197   if (registry == (void *) NULL)  in GetImageRegistry()
199   registry_info=(RegistryInfo *) GetValueFromSplayTree(registry,key);  in GetImageRegistry()
275   if (registry == (void *) NULL)  in GetNextImageRegistry()
277   return((char *) GetNextKeyInSplayTree(registry));  in GetNextImageRegistry()
330   if (registry != (void *) NULL)  in RegistryComponentTerminus()
331     registry=DestroySplayTree(registry);  in RegistryComponentTerminus()
363   if (registry == (void *) NULL)  in RemoveImageRegistry()
365   return(RemoveNodeFromSplayTree(registry,key));  in RemoveImageRegistry()
392   if (registry == (void *) NULL)  in ResetImageRegistryIterator()
394   ResetSplayTreeIterator(registry);  in ResetImageRegistryIterator()
524   if (registry == (SplayTreeInfo *) NULL)  in SetImageRegistry()
529       if (registry == (SplayTreeInfo *) NULL)  in SetImageRegistry()
530         registry=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,  in SetImageRegistry()
534   status=AddValueToSplayTree(registry,ConstantString(key),registry_info);  in SetImageRegistry()