DeepCopy (ScreenField function): Difference between revisions

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<td>A declared ScreenField object. </td></tr>
<td>A declared ScreenField object. </td></tr>
<tr><th>%sfield</th>
<tr><th>%sfield</th>
<td>A reference to an instance of a ScreenField object.</td></tr>
<td>A reference to an instance of a ScreenField object, which may be <var>Null</var>.</td></tr>
</table>
</table>



Revision as of 23:51, 18 March 2011

Return a deep copy of a screenfield object (ScreenField class)


This method returns a ScreenField object that is a deep copy of the method object. Since a ScreenField cannot exist without its underlying Screen, however, a ScreenField is deep copyable only, and no Copy method exists for a ScreenField. For more information about copyability, see &#x201C;Copying Objects&#x201D;.

Syntax

%outSfield = sfield:DeepCopy

Syntax terms

%outsfield A declared ScreenField object.
%sfield A reference to an instance of a ScreenField object, which may be Null.

Usage notes

The method object (%screen) may be null. The output of a copy of a null object is a null object.

See also