Help - getVariable (ACE)

[GaryTheNoTrashCougar 0]

Trying to make a displayCtrl for blood loss when using ace.

 

Problem I'm having is trying to get blood level value:

player getVariable "ace_medical_bloodVolume";

This works in debug console but is not recognised in my script.

I'm not familiar with returning variables from mods, do I have to define something in order to pass the variable through to my script?

[GaryTheNoTrashCougar 0]

Had to define a default value in case the variable returned nil value.

player getVariable ["ace_medical_bloodVolume", 6.0];

Can't really see why that matters but works this way.