qt4+xp: QTreeView w/o header ?

[incapacitant]

Is it possible to create a QTreeView without header :

model = new QStandardItemModel(0, 2, this);
  model->setHeaderData(0, Qt::Horizontal, "Mois");
  model->setHeaderData(1, Qt::Horizontal, "Facture");

model = new QStandardItemModel(0, 2, this);
  model->setHeaderData(0, Qt::Horizontal, "Mois");
  model->setHeaderData(1, Qt::Horizontal, "Facture");

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I used this code for the model, but if I remove setHeaderData it add new labels anyway that are the column numbers ?

How can have only the data rows and no header ?