How to display a popup message in Roblox game mode?

Question

I'm trying to parse chat messages for keywords that I will use to trigger various functions. In order to use the chat I have to test in game mode, which is started by first clicking Tools-> Test-> Start Server and then clicking Tools-> Test-> Start Player. The command window is not available in game mode so I need a way to get some debugging feedback. I figured a popup message would be good for that purpose.

I suspect its fairly simple to display a popup message but I cant find any information on it.

Answer 1

Did you enable the Output window?

View -> Output menu

Then e.g. if you script does

print("Hello world!")

You should see that in the output window. Else take a look at

How to add messages

Answer 2

Enable the output, Press Test >> Start Server In that new window press Test >> Start Player In the server window (Not the new player window), open the command bar and type:

game.Players.Player.SuperSafeChat = false

And press enter. You can test it, and get output.