<desc>Returns the object number of an object. This number always uniquely identifies an object, even in subsequent savegame runs. Using <funclink>Object</funclink> it can be converted back to an object pointer.</desc>
<text>This function opens a menu in the calling object which contains all chopable objects (<funclink>OCF_Chop</funclink>) in the object's vicinity. Selecting a menu entry then uses <funclink>SetCommand</funclink> to set the command "Chop" in the object. Since this requires storage of the object pointer, the pointer is first converted into the object number.</text>