Remove 'name' CVar callback?

[sethxi]

Interfaces->Cvar->FindVar("name")->RemoveChangeCallback();

How do I use this? Or is this not the right thing?

[asuchan]

Interfaces->CVar->FindVar("name")->m_fnChangeCallback = NULL

m_fnChangeCallback is a private member go in convar.h find the ConVar class and replace "private" with "public", also I'll be on steam in about an hour if you need any help.

[sethxi]

This crashes the game.