Qt4-preview-feedback Archive, March 2008
QPainter compositionMode doesn't work properly with Qt4.4 on windows
Message 1 in thread
Hi, i'm using the Qt 4.4beta1 pre-compiled package for windows and I
think that there is a bug in QPainter compositionMode, i've noticed
this using the Oxygen style from kde, here is a screenshot:
http://www.uploadgeek.nl/files/ko1gn3m148gjjb4ultk.png as you can see
the bottom of the groupbox should be faded using the gradient but it
doesn't seem to work(it worked with Qt 4.3), also the composition
demo doesn't show the flower in the middle of the screen
http://www.uploadgeek.nl/files/e1gb4ff5es1hemu1qa.png like the qt4.3
version http://doc.trolltech.com/4.3/images/qpainter-compositiondemo.png
but just on windows, it works good on linux
Carlo
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Message 2 in thread
On Mon, Mar 3, 2008 at 2:07 PM, Carlo <brandon.ml@xxxxxxxxx> wrote:
> Hi, i'm using the Qt 4.4beta1 pre-compiled package for windows and I
> think that there is a bug in QPainter compositionMode, i've noticed
> this using the Oxygen style from kde, here is a screenshot:
> http://www.uploadgeek.nl/files/ko1gn3m148gjjb4ultk.png as you can see
> the bottom of the groupbox should be faded using the gradient but it
> doesn't seem to work(it worked with Qt 4.3), also the composition
> demo doesn't show the flower in the middle of the screen
> http://www.uploadgeek.nl/files/e1gb4ff5es1hemu1qa.png like the qt4.3
> version http://doc.trolltech.com/4.3/images/qpainter-compositiondemo.png
> but just on windows, it works good on linux
>
> Carlo
>
this is the debug output
[1516] Warning:QPainter::setCompositionMode: PorterDuff modes not
supported on device
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