How to get margins and background colour of QTreeItemViews selected item?

[philk]

In another widget I need to know the background colour and margins of a specific item in a QTreeView. How would I do that? I tried QTV::style() but this did not lead to much.

[NicuPopescu]

try to get

@QStyleOptionViewItem4 option;
option.initFrom(treeView);@

in a slot receiving a model index

[philk]

Thanks, and where is the model index used in your example?