QtDotNet style not set correctly for QToolButton

When using QtDotNetStyle on a QToolButton within a QWidget the style does not look the same as when it is used on a QToolButton that is directly in the QToolBar.

In the following example the toolbutton will look differently when the mouse is over the buttons.

Example Code:

#include <QApplication>

#include <QMainWindow>
#include <QWidget>
#include <QToolButton>
#include <QHBoxLayout>
#include <QToolBar>
#include <QPalette>
#include <QStyle>

int main(int argc, char *argv[])
{
QApplication::setStyle("qtdotnet");
QApplication a(argc, argv);

QMainWindow mainWin(0, 0);

QToolBar* pBarA = new QToolBar(&mainWin);
QToolButton* pButtonA = new QToolButton(pBarA);
pButtonA->setAutoRaise(true);
pButtonA->setText("Hi World");
pBarA->addWidget(pButtonA);

mainWin.addToolBar(pBarA);

QWidget* pTBwidget = new QWidget(&mainWin);
QToolBar* pBarB = new QToolBar(&mainWin);
QToolButton* pButtonB = new QToolButton(pTBwidget);
pButtonB->setText("Hi there");
pButtonB->setAutoRaise(true);

QHBoxLayout* pLayout = new QHBoxLayout(pBarB);
pLayout->addWidget(pButtonB);

pTBwidget->setLayout(pLayout);
pBarB->addWidget(pTBwidget);

mainWin.addToolBar(pBarB);

mainWin.show();

return a.exec();
}