Displays the description text of an object in a popup window (a menu window).
The information window's background will be the definition image of the obect.
protected func ControlSpecial()
{
ShowInfo(Contents());
return(1);
}
A feature for a special clonk: pressing the 'special' key will display the description of the first inventory item in a popup window. If the clonk does not carry any objects, the clonk's own description will be displayed.