[Marshew_DD]

IsValidMenu is a native of sa-mp.

Код:

stock DestroyMenuEx(Menu:mid)
{
	for(new i = 0; i < 50; i++)
	{
	  if(GetPlayerMenu(i) == mid)
	  {
	    HideMenuForPlayer(mid, i);
	    SetPlayerControl(i, true);
	  }
	}
	DestroyMenu(mid);
}

In others menus it work. Maybe strings?