Message Pop up?

[T122002]

Hello everybody!
I have a question about messages. I was reading a forum before I posted this and I couldn't get it right. I thought I would be able to do something, like walking into a scripted area then a message popping up on screen.

Here is my .lang file:



Ah, the mansion! No turning back now.


Here is the .hps file:

AddEntityCollideCallback("Player", "Message_1", "Message1", true, 1);


void Message1(string &in asChild, string &in asParent, int alState)
{
SetMessage("Messages", "Popup1", 3);
}

And in my map, the scripted area is named "Message_1".

I thought that would work, but nothing happens. What am I doing wrong?
Thanks to everyone in advanced!