How can I use QGalleryMetaDataFilter?

[mismail]

Hi everybody,

I want to know how can I use QGalleryMetaDataFilter?

I tried the followinf without any result
@
QGalleryMetaDataFilter filter();
filter.setPropertyName(QLatin1String("created"));
filter.setValue("4/7/2011");
filter.setComparator(QGalleryFilter::Equals);
setFilter(filter);
@
I want to get all photos in the gallery but within specific date

Can anybody help?