====== zeofunc_Execute2 ======

===== Description =====

Execute a Zeolite extension function and retrieve the return value.

===== Function prototype =====

<code>bool CExtAPI::zeofunc_Execute2(ZFUNC hFunc, ZLIST hArgList, ZVAR* phRval);</code>


===== Arguments =====

^ Name ^ Type ^ Comment ^
| hFunc | ZFUNC | A handle to the extension function to be executed. |
| hArgList | ZLIST | A handle to the argument list to be passed to the function. |
| phRval | ZVAR* | A handle to a caller-provided, initialised variable handle to contain the return value. |

===== Return value =====

False if an error occurred, and true otherwise.

===== Comments =====



==== Use CzFunc wrapper ====

<note important>
It is //strongly// recommended that developers use the CzFunc wrapper in preference to the API zeofunc_ methods. CzFunc automates some of the labour in dealing with argument prototype lists and return value handling.
</note>

==== Thread safety ====

zeofunc_Execute2 is a threadsafe version of [[zeolite:functions:zeofunc_Execute]], which used a common return variable for all function calls, including parallel calls from different threads. zeofunc_Execute2 should alwyas be used in preference to zeofunc_Execute.