Passing pointers to a COM object

I develop a P2P application called Nova (http://novap2p.sourceforge.net/) written in PHPGTK which uses a COM object called GnucDNA (http://www.gnucleus.net/GnucDNA/). The problem is the COM object was programmed in a language that supports pointers (C++) and some of the methods require pointer arrays to be passed as parameters (example: http://www.gnucleus.net/GnucDNA/docs/interfaces/ISearch.html#StartMetaSearch ). Now ive experimented with references and many other techniques all with no luck (type mismatch errors). Perhaps there is an extension, workaround or other solution that may enable me to pass pointers to the COM object. Any help would be greatly appreciated.