bool MacSetTypeAndCreator( wxUint32 type , wxUint32 creator ) ;
bool MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator ) ;
// gets the 'common' type and creator for a certain extension
bool MacSetTypeAndCreator( wxUint32 type , wxUint32 creator ) ;
bool MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator ) ;
// gets the 'common' type and creator for a certain extension