I understand, It should be
connect(model, SIGNAL(dataChanged ( const QModelIndex &, const QModelIndex & )),
this, SLOT( backgroundChanged ( const QModelIndex & , const QModelIndex & )));
Then it works.
I understand, It should be
connect(model, SIGNAL(dataChanged ( const QModelIndex &, const QModelIndex & )),
this, SLOT( backgroundChanged ( const QModelIndex & , const QModelIndex & )));
Then it works.
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