Put this in the plugin, just as it is. If you need me to make a separate plugin and compile it for you, just let me know. This will only allow people to change the case (upper vs. lower) of the letters of their names.
Code:
public client_infochanged(id)
{
new oldname[32]
new newname[32]
get_user_name(id, oldname, 31)
get_user_info(id, "name", newname, 31)
if(!equali(newname, oldname))
{
set_user_info(id, "name", oldname)
}
return PLUGIN_HANDLED
}