Getting all roles of specified column and/or model

[NoRulez]

Hi,

is there something to find out which roles in a model are used (also user defined roles)?
I only find the following function QAbstractItemModel::roleNames (), but this is only for internal roles such as Qt:isplayRole

I want to do something like the following (for example):

for(qint32 row = 0; row < pModel->rowCount(); ++row)
  for(qint32 col= 0; col< pModel->columnCount(); ++col)
    qDebug() << "Row: " << row << "; Column: " << col << "; Data: " << pModel->data(pModel->index(row, col), /*??????*/);

for(qint32 row = 0; row < pModel->rowCount(); ++row)
  for(qint32 col= 0; col< pModel->columnCount(); ++col)
    qDebug() << "Row: " << row << "; Column: " << col << "; Data: " << pModel->data(pModel->index(row, col), /*??????*/);

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Best Regards
NoRulez