To lower the scroll handle to the bottom

[IknowQT]

void QCustomScrollBar::paintEvent(QPaintEvent* e)
{
    QPainter painter1(this);
    QPainter* p = &painter1;
    QStylePainter painter(this);

    m_StyleOpt.init(this);
	m_StyleOpt.subControls = QStyle::SC_ScrollBarAddLine;
	painter.drawComplexControl(QStyle::CC_ScrollBar, m_StyleOpt);

	m_StyleOpt.subControls = QStyle::SC_ScrollBarSubLine;
	painter.drawComplexControl(QStyle::CC_ScrollBar, m_StyleOpt);



    m_StyleOpt = QStyleOptionSlider();
    initStyleOption(&m_StyleOpt);
    
    m_StyleOpt.singleStep = 1;		// Slider를 움직이거나 방향키를 눌러 이동할 수 있는 최소값
    m_StyleOpt.pageStep = 10;		// Page up/down 키를 눌렀을 때 이동하는 최소값.
    m_StyleOpt.upsideDown = false;
    //m_StyleOpt.rect.setY(50);

    int nMin = this->minimum();
    int nMax = this->maximum();

    //QRect rect = style()->subControlRect(QStyle::CC_ScrollBar, &m_StyleOpt, QStyle::SC_ScrollBarSlider);
    QRect rect = style()->subControlRect(QStyle::CC_ScrollBar, &m_StyleOpt, QStyle::SC_ScrollBarSlider);

    if (rect.y() <= 50)
        rect.setTop(51);

    if (rect.y() >= 228)
        rect.setTop(228);

    m_StyleOpt.rect = QRect(rect.topLeft(), QSize(rect.width(), 50));
    //m_StyleOpt.rect = QRect(rect.topLeft(), QSize(rect.width(), 50));
    //m_StyleOpt.rect.setSize(QSize(rect.width(), 50));

    style()->drawControl(QStyle::CE_ScrollBarSlider, &m_StyleOpt, p, this);
	
}

Is there a way to lower the scroll handle all the way down? I've inserted 12 items into the list widget, and I'm scrolling all the way down, but I want to get rid of the gaps in the yellow arrow in the picture and get to the bottom.

I want to maintain the handle size and tell me how to lower it to the bottom.

[IknowQT]

add Question

what is QScrollBar::add-line:vertical:pressed

QScrollBar:vertical { background-color: #002039; width: 50px; margin: 54px 0px 55px 0px; border: none; }\
            QScrollBar::handle:vertical\
            {\
                background-image: url(:/PopRsrc/Common/all-btn-scroll-middle.jpg); min-height: 50px; margin: 0px 0px 0px 0px;\
            }\
            QScrollBar::add-line:vertical\
            {\
                margin: 4px 0px 1px 0px; height: 50px; width: 50px; subcontrol-position: bottom;\
                subcontrol-origin: margin; border-image: url(:/PopRsrc/Common/all-btn-scroll-down.jpg); stretch;\
            }\
            QScrollBar::sub-line:vertical\
            {\
                margin: 1px 0px 4px 0px; height: 50px; width: 50px; subcontrol-position: top; subcontrol-origin: margin;\
                border-image: url(:/PopRsrc/Common/all-btn-scroll-up.jpg); stretch;\
            }\
            QScrollBar::add-page:vertical { background-color: #002039; }\
            QScrollBar::sub-page:vertical { background-color: #002039; }\
            QScrollBar::add-line:vertical:pressed\
            {\
                margin: 4px 0px 1px 0px; height: 50px; width: 50px; subcontrol-position: bottom;\
                subcontrol-origin: margin; border-image: url(:/PopRsrc/Common/all-btn-scroll-down-p.jpg); stretch;\
            }\
            QScrollBar::sub-line:vertical:pressed\
            {\
                margin: 1px 0px 4px 0px; height: 50px; width: 50px; subcontrol-position: top; subcontrol-origin: margin;\
                border-image: url(:/PopRsrc/Common/all-btn-scroll-up-p.jpg); stretch; }\
            }"

[JoeCFD]

highlight the last row?

[IknowQT]

@JoeCFD

I want to change the image of when I clicked and when I didn't.

QScrollBar::add-line:vertical\
            {\
                margin: 4px 0px 1px 0px; height: 50px; width: 50px; subcontrol-position: bottom;\
                subcontrol-origin: margin; border-image: url(:/PopRsrc/Common/all-btn-scroll-down.jpg); stretch;\
            }\
            QScrollBar::add-line:vertical:pressed\
            {\
                background-color: red\
            }\
            QScrollBar::sub-line:vertical\
            {\
                margin: 1px 0px 4px 0px; height: 50px; width: 50px; subcontrol-position: top; subcontrol-origin: margin;\
                border-image: url(:/PopRsrc/Common/all-btn-scroll-up.jpg); stretch;\
            }\
            QScrollBar::sub-line:vertical:pressed\
            {\
                margin: 1px 0px 4px 0px; height: 50px; width: 50px; subcontrol-position: top; subcontrol-origin: margin;\
                border-image: url(:/PopRsrc/Common/all-btn-scroll-up-p.jpg); stretch; }\
            }\