c++ - Qt QCombobox change Scroll Arrows -


hello have problem combobox in qt. have searched while not find information.

i have build combobox select data http://fs5.directupload.net/images/160606/2ekorosf.png

enter image description here

the , down arrows @ end of list way narrow.
want them bigger.
there way change this?

with normal scrollbar everthing works fine css-file example:

qscrollbar:vertikal {with: 50px;} 

but can not figure out how change small arrows in picture.

this not work. noticed problem not wit cambobox. programm uses

qcombobox qabstractitemview

it seems need change autoscrollmargin(or setautoscrollmargin) in way http://doc.qt.io/qt-4.8/qabstractitemview.html#autoscrollmargin-prop not figure out hot in css file, sry pretty new in qt.^^

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i figured out, if use

qcombobox qabstractitemview { margin-top: 50px; padding-bottom: 50px; } 

i got qcombobox qabstractitemview margin

this hoping for. keep date.^^