[TYPO3-mvc] itemProcFunc and Extbase

[Zalán Somogyváry]

Hi List,

ist there a solution to my problem?
I would like to fill a select-box of a backend form by just calling itemProcFunc.
But my problem is, that the function for creating the array-Data is in an Extbase Module.
My TCA should look something like this:

'config'		=> array(
				'type'		=> 'select',
				'items'		=> array('',0)
				'itemProcFunc'	=> Tx_MyExtbaseExtension_HelperClass->myfunction;
			)

Have I forgotten something? Because this doesn't work.
I am stuck and I would appreciate any advice.

Thanks in advance.
Zalán