MessageAll('', %var);
^ those are single quotes, don't touch them.
stuff you can put in the single quotes (default)
MsgClientInYourMiniGame
MsgClientJoin
MsgConnectionError
MsgYourDeath
MsgYourSpawn
MsgError
MsgAdminForce
MsgClearBricks
MsgPlantError_Overlap
MsgPlantError_Float
MsgPlantError_Unstable
MsgPlantError_Buried
MsgPlantError_Stuck
MsgPlantError_TooFar
MsgPlantError_Teams
MsgPlantError_Flood
MsgPlantError_Limit
MsgPlantError_TooLoud
MsgPlantError
MsgItemPickup
MsgDropItem
MsgClearInv
MsgHilightInv
MsgEquipInv
MsgDeEquipInv
MsgSetInvData
MsgStartTalking
MsgStopTalking
MsgUploadStart
MsgUploadEnd
MsgProcessComplete
MessageAll('MsgAdminForce',"Hi");
if you want to add one, add this in a client
addMessageCallback('WhateverYouWant',nameOfFunction);
nameOfFunction will be called when you messageAll('WhateverYouWant',"Meow");
You can also do this:
messageAll('','%1 is a %2',"Marble","cat");
and it will message everyone
"Marble is a cat"
the '%1' and '%2' represent variables you put into the messageAll or Messageclient
there is also
MessageAllExcept(%client,~);