B_OBSERVE_WHAT_CHANGE
if (message->FindInt32(B_OBSERVE_WHAT_CHANGE, &what) != B_OK)
if (message->FindInt32(B_OBSERVE_WHAT_CHANGE, &what) != B_OK)
if (message->FindInt32(B_OBSERVE_WHAT_CHANGE, &what) != B_OK)
|| message->FindInt32(B_OBSERVE_WHAT_CHANGE, (int32*)&what)
message.AddInt32(B_OBSERVE_WHAT_CHANGE, what);
message.AddInt32(B_OBSERVE_WHAT_CHANGE, what);
copy->AddInt32(B_OBSERVE_WHAT_CHANGE, what);
message->FindInt32(B_OBSERVE_WHAT_CHANGE, &change);
message->FindInt32(B_OBSERVE_WHAT_CHANGE, &change);
message->FindInt32(B_OBSERVE_WHAT_CHANGE, &change);