View source for ReturnObject and ReturnInfoObject (Daemon subroutines)

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<var>ReturnObject</var> and <var>ReturnInfoObject</var> specify the output objects to be returned to the master thread. The difference between them is that <var>ReturnObject</var> returns the value of the <var>Output</var> argument of the <var>[[Run (Daemon function)|Run]]</var> function, while <var>ReturnInfoObject</var> returns the value of the <var>Info</var> argument of the <var>Run</var> function. 

==Syntax==
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===Syntax terms===
<table class="syntaxTable">
<tr><th><var class="nobr">%(Daemon)</var></th>
<td>The class name in parentheses denotes a [[Notation conventions for methods#Shared methods|shared]] method. <var>ReturnObject</var> and <var>ReturnInfoObject</var> can also be invoked via a <var>Daemon</var> object variable, which may be null.</td></tr>

<tr><th>outputObj</th>
<td>The object returned from the daemon method object in the last <var>Run</var> method invocation. <var class="term">outputObj</var> must be deep copyable, as described in [[Copying objects|"Copying objects"]].</td></tr>
</table>

==Usage notes==
<ul> 
<li><var>ReturnObject</var> and <var>ReturnInfoObject</var> can only be issued on daemon threads. 

<li>You can invoke <var>ReturnObject</var> and/or <var>ReturnInfoObject</var> as many times as you want for a single <var>Run</var> call. Each subsequent invocation replaces the object from the previous invocation of the same method. 

<li>You can invoke <var>ReturnObject</var> even if <var>Run</var> has no output parameter, and you can invoke <var>ReturnInfoObject</var> even if <var>Run</var> has no <var>Info</var> parameter.

<li>A class mismatch between the <var>ReturnObject</var> argument and the <var>Run</var> output argument, or between the <var>ReturnInfoObject</var> argument and the <var>Run</var> <var>Info</var> argument, causes request cancellation in the master thread at the time the daemon finishes and <var>Run</var> method was about to return.
</ul>

==See also==
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