path: root/src/plugins/platforms/windows/qwindowsscreen.cpp
diff options
authorMorten Johan Sørvig <>2016-04-25 11:31:34 +0200
committerMorten Johan Sørvig <>2019-08-23 03:40:35 +0200
commit900f2cb6f7070b4d426f3b83787ac489b8a2e827 (patch)
tree48f5a9fb87a01c3e5be8c9f436d0607602d24956 /src/plugins/platforms/windows/qwindowsscreen.cpp
parentdd9da0441b18d1946a7b3d28e4e8819b1921de6f (diff)
Update Dpi and scale factor computation
Remove pixelScale() in favor of logicalBaseDpi(). Compute scale factor based on logical DPI and logical base DPI, or optionally based on the physical DPI. Add policies for running the scale factor and adjusting the logical DPI reported to the application. The policies are set via environment variables: QT_SCALE_FACTOR_ROUNDING_POLICY=Round|Ceil|Floor|RoundPreferFloor|PassThrough QT_DPI_ADJUSTMENT_POLICY=AdjustDpi|DontAdjustDpi|AdjustUpOnly QT_USE_PHYSICAL_DPI=0|1 Done-with: Friedemann Kleint <> Task-number: QTBUG-53022 Change-Id: I4846f223186df665eb0a9c827eaef0a96d1f458f Reviewed-by: Friedemann Kleint <>
Diffstat (limited to 'src/plugins/platforms/windows/qwindowsscreen.cpp')
1 files changed, 0 insertions, 9 deletions
diff --git a/src/plugins/platforms/windows/qwindowsscreen.cpp b/src/plugins/platforms/windows/qwindowsscreen.cpp
index 282c0b107e..8cd09a34eb 100644
--- a/src/plugins/platforms/windows/qwindowsscreen.cpp
+++ b/src/plugins/platforms/windows/qwindowsscreen.cpp
@@ -256,15 +256,6 @@ QWindow *QWindowsScreen::windowAt(const QPoint &screenPoint, unsigned flags)
return result;
-qreal QWindowsScreen::pixelDensity() const
- // QTBUG-49195: Use logical DPI instead of physical DPI to calculate
- // the pixel density since it is reflects the Windows UI scaling.
- // High DPI auto scaling should be disabled when the user chooses
- // small fonts on a High DPI monitor, resulting in lower logical DPI.
- return qMax(1, qRound(logicalDpi().first / 96));
\brief Determine siblings in a virtual desktop system.