How to create custom console variables

You can create new Console variables in Unreal by using TAutoConsoleVariable.

static TAutoConsoleVariable<bool> MyCVar(
  TEXT("variablename"),
  true,
  TEXT("description of the variable's purpose"),
  ECVF_Cheat
);

This creates a new variable, which can be modified using variablename in the console. It defaults to true, and has a description. It’s marked as ECVF_Cheat, which automatically disables the variable in packaged builds. See the IConsoleManager.h file for a full list of possible ECVF values.

Accessing auto console variables is simple:

bool Val = MyCVar.GetValueOnGameThread();

They have other functions as well, which should be self-explanatory if you check their comments and naming.

See also §

• How to create custom console commands