Syntaxe C

Dans un exemple d'apple event, j'ai trouvé:

AliasHandle startupDiskAlias;<br />...<br />...<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; err = AEBuildAppleEvent(<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kAEMiscStandards,<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kAEMakeObjectsVisible,<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; typeApplSignature,<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &amp;finderSignature,<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; sizeof(finderSignature),<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kAutoGenerateReturnID,<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kAnyTransactionID,<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; revealEvent,<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; NULL,<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &quot;&#39;----&#39;:[alis(@@)]&quot;,<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; startupDiskAlias);<br />... etc

Je vois bien que  @)]";, startupDiskAlias  correspond à  la définition:  const char *paramsFmt, ...
@)]"; est donc le format et startupDiskAlias est le 1ier argument.
:-\\ Ce que je ne comprend pas c'est @)].  Quelle est la signification de cela?