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Asked: 2026-05-11T13:36:45+00:00

There are two QTreeViews in the screenshot below. For the one on the right,

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There are two QTreeViews in the screenshot below. For the one on the right, I’ve add a css customization:

setStyleSheet(     'background-color: #EAF5FF;'     'alternate-background-color: #D5EAFF;' );

Notice however, the scrollbar appearance has changed. It went to the ‘windows’ style, not the ‘windowsxp’ style (which is the default, since I’m developing under Xp).

How can I use the above style settings without changing the scrollbar appearance?

I’m using QT 4.5 and Windows XP.

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1 Answer

  1. The advice of going the QPalette route worked out. Here is the solution:

    #if 0  // this causes the problem     setStyleSheet(         'background-color: #EAF5FF;'         'alternate-background-color: #D5EAFF;'     ); #else // this works correctly     QPalette p = palette();     p.setColor(QPalette::Base, QColor(qRgb(0xEA, 0xF5, 0xFF)));     p.setColor(QPalette::AlternateBase, QColor(qRgb(0xD5, 0xEA, 0xFF)));     setPalette(p); #endif

    Both methods should work according to the docs, so I’d say its a Qt bug.

    Edit: After working with this new method over the past few days, I’ve noticed there may be a performance improvement also.

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