guiSetEnabled

ClientInterface (GUI)Identical to MTA:SA

Enables or disables a control. A disabled one is greyed out and does not respond.

Syntax

bool guiSetEnabled(element guiElement, bool enabled)

true on success.

addEventHandler("onClientGUIChanged", nickEdit, function()
    guiSetEnabled(okButton, #guiGetText(nickEdit) >= 3)
end, false)