31    uint32 
GetVariable(byte variable, uint32 parameter, 
bool *available) 
const;
 
   99   DEBUG(grf, 1, 
"Unhandled canal variable 0x%02X", variable);
 
  127     CallbackID callback, uint32 callback_param1, uint32 callback_param2)
 
  128     : 
ResolverObject(_water_feature[feature].grffile, callback, callback_param1, callback_param2), canal_scope(*this, tile)
 
  143   if (group == NULL) 
return 0;
 
  145   return group->GetResult();
 
  160   return object.ResolveCallback();