Returns the id of the menu if the object has an open menu. This is usually the id of the menu symbol (idSymbol) unless
CreateMenu was used to explicitly use a differing menu id in idMenuID. Returns 0 if there is no menu or no menu symbol.
A return value of -1 means that no valid symbol could be determined. This may happen e.g. if no object pointer was passed during a global call to the function. Engine defined menus such as Buy, Sell, etc. never return valid ids.
/* Wird bei klick auf Spezial aufgerufen */
protected func ControlSpecial()
{
/* überhaupt ein Menü offen und ein Symbol angegeben? */
if(GetMenu())
/* Mutieren */
ChangeDef(GetMenu());
return(1);
}
Mutate into the object represented by the symbol.
