cvars.AddChangeCallback

From GMod Wiki

Function
Syntax	cvars.AddChangeCallback( String ConVar, Function Callback ) Where is this used?
Description:
Registers a callback function to be called when the specified ConVar's value is changed.
Returns:	nil
Part of Library:	cvars
Realm:
BBCode Link:	[b][url=http://wiki.garrysmod.com/?title=Cvars.AddChangeCallback]Cvars.AddChangeCallback [img]http://wiki.garrysmod.com/favicon.ico[/img][/url][/b]

Example

 
CreateConVar("my_cvar", "", FCVAR_NOTIFY)
local function funcCallback(CVar, PreviousValue, NewValue)
	print(CVar.." changed from "..PreviousValue.." to "..NewValue.."!")
end
cvars.AddChangeCallback("my_cvar", funcCallback)
 

Notes

• These CVar change callbacks are not networked; server-side changes only register server-side. Only the table of the convar is sent in callback 'CVar', not the actual ConVar object. To fix, use GetConVar(CVar) in any situation where needed.
• Returning anything in the callback has no effect.
• For this to work for ConVars on the server, the ConVar must be created with the FCVAR_GAMEDLL flag.

See Also

• G.CreateConVar