[TYPO3-dev] Naming conventions in hooks

[Tapio Markula]

Hi

I know that class names of hook files should start with 'user_' or 'tx_'

I made a hook

$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tsfebeuserauth.php']['addCCS']

I tried to use method 'addCSS' ($hookObj->addCSS(...)) but it didn't work.
I changed the name of the method as 'addCSSforFE' and that worked.

Must the method be always different as the array item of the hook?

Is there other restrictions?