<![CDATA[[SOLVED] QSlider handle size after stylesheet]]>Is it possible to get the size of the handle of a QSlider if a stylesheet changed it?

The following code seems only to work if nothing changed the handles size

@
QStyleOptionSlider opt;
initStyleOption(&opt);
QRect handle = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle);
@

]]>https://forum.qt.io/topic/36346/solved-qslider-handle-size-after-stylesheetRSS for NodeSun, 26 Apr 2026 03:19:55 GMTWed, 08 Jan 2014 15:11:05 GMT60<![CDATA[Reply to [SOLVED] QSlider handle size after stylesheet on Thu, 09 Jan 2014 12:51:15 GMT]]>I should have posted the whole slider style.

The this indeed fixed the problem. Thanks!

]]>https://forum.qt.io/post/210076https://forum.qt.io/post/210076Thu, 09 Jan 2014 12:51:15 GMT<![CDATA[Reply to [SOLVED] QSlider handle size after stylesheet on Thu, 09 Jan 2014 12:46:21 GMT]]>correct, my fault.
I've just tested the style definition you posted, and this isn't working as it is (only when you also style the slider's groove i think)

To come back to your problem:
Your code is almost correct. Just keep in mind that every time you call QStyle methods and an optional QWidget parameter is available you need to pass it:
@
QStyleOptionSlider opt;
initStyleOption(&opt);
QRect handle = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);
@
This will work.

]]>https://forum.qt.io/post/210073https://forum.qt.io/post/210073Thu, 09 Jan 2014 12:46:21 GMT<![CDATA[Reply to [SOLVED] QSlider handle size after stylesheet on Thu, 09 Jan 2014 12:26:22 GMT]]>That is not correct. width changes the size of the handle.

]]>https://forum.qt.io/post/210071https://forum.qt.io/post/210071Thu, 09 Jan 2014 12:26:22 GMT<![CDATA[Reply to [SOLVED] QSlider handle size after stylesheet on Thu, 09 Jan 2014 10:44:31 GMT]]>seems that setting the handle size via stylesheet style isn't possible at all.
This is a fixed pixel metric (QStyle::PM_SliderLength) value in the platform styles (at least on Windows).

]]>https://forum.qt.io/post/210063https://forum.qt.io/post/210063Thu, 09 Jan 2014 10:44:31 GMT<![CDATA[Reply to [SOLVED] QSlider handle size after stylesheet on Thu, 09 Jan 2014 10:20:25 GMT]]>@SGaist Of course this would be an option but I would prefer to ask the slider itself for its handle size.

]]>https://forum.qt.io/post/210059https://forum.qt.io/post/210059Thu, 09 Jan 2014 10:20:25 GMT<![CDATA[Reply to [SOLVED] QSlider handle size after stylesheet on Thu, 09 Jan 2014 10:19:08 GMT]]>I don't know why.

The output gives me a width of the handle of 15 but it should be 18.

@
QSlider::handle:horizontal {
background: qlineargradient(x1:0, y1:0, x2:1, y2:1, stop:0 #b4b4b4, stop:1 #8f8f8f);
border: 1px solid #0c457e;
width: 18px;
margin: -2px 0;
border-radius: 3px;
}
@

]]>https://forum.qt.io/post/210058https://forum.qt.io/post/210058Thu, 09 Jan 2014 10:19:08 GMT<![CDATA[Reply to [SOLVED] QSlider handle size after stylesheet on Thu, 09 Jan 2014 07:16:38 GMT]]>[quote author="butterface" date="1389193865"]
The following code seems only to work if nothing changed the handles size
[/quote]
why doesn't this code work for you?
How does the output differ from what you expect?
How does your stylesheet look like?

]]>https://forum.qt.io/post/210023https://forum.qt.io/post/210023Thu, 09 Jan 2014 07:16:38 GMT<![CDATA[Reply to [SOLVED] QSlider handle size after stylesheet on Wed, 08 Jan 2014 20:40:59 GMT]]>Hi,

You could parse the stylesheet for that information

]]>https://forum.qt.io/post/209961https://forum.qt.io/post/209961Wed, 08 Jan 2014 20:40:59 GMT