Windows XP: changing scrollbar width in control panel is not reflected by QScrollbar

If you change the scrollbar size in the control panel (Display Properties / Appearance / Advanced / Item: Scrollbar), QScrollbars will still have a default width (vertical) / height (horizontal).

If you're running the same application on Windows 7 (Control Panel/Personalization/Window Color/ click 'advanced appearance settings'), it works as expected.

In attachment, please find:

• screenshot of the application on windows 7 / windows XP
• small code source (can be reproduced with a simple textedit)

This is an issue for accessibility and for tablet PC users who finds the default scrollbar too small.