#include <QtGui>


int main(int argc, char* argv[])
{
    QApplication app(argc, argv);
QTreeWidget *tree = new QTreeWidget;
	tree->setColumnCount(2);
	QTreeWidgetItem *item = new QTreeWidgetItem(QStringList()<< QString::number(1) << "label");
	item->setHidden(true);// This item still gets shown
	QTreeWidgetItem *item2 = new QTreeWidgetItem(QStringList()<< QString::number(1) << "label22");

	tree->addTopLevelItem(item);
	tree->addTopLevelItem(item2);
	//item->setHidden(true); // un comment it to see it is working
	tree->show();

    return app.exec();
}