diff options
authorTor Arne Vestbø <>2020-11-27 11:56:10 +0100
committerQt Cherry-pick Bot <>2020-11-30 05:59:51 +0000
commitfc478d1ef7fad638a25a2e4cd1bd73d85859be20 (patch)
parente84e85dd4c59f2c79f81ba4d8d7f04397eb0003c (diff)
Update setHighDpiScaleFactorRoundingPolicy docs
The default is now passthrough. And let's not mention the environment variable overrides, as they are meant for internal testing. Change-Id: Ie2409e5411d4bdcdf041834cb5ca9e1215aa173a Reviewed-by: Morten Johan Sørvig <> (cherry picked from commit 58afadc624cf284cfe93d6a5c85557ed6e4f9765) Reviewed-by: Qt Cherry-pick Bot <>
2 files changed, 4 insertions, 8 deletions
diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc
index fae3afddc1..4aded8643e 100644
--- a/src/corelib/global/qnamespace.qdoc
+++ b/src/corelib/global/qnamespace.qdoc
@@ -3238,8 +3238,7 @@
decide how non-integer scale factors (such as Windows 150%) are handled.
The active policy is set by calling QGuiApplication::setHighDdpiScaleFactorRoundingPolicy() before
- the application object is created, or by setting the QT_SCALE_FACTOR_ROUNDING_POLICY
- environment variable.
+ the application object is created.
\sa QGuiApplication::setHighDpiScaleFactorRoundingPolicy()
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index 05933bac6a..c10b95e206 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -3633,14 +3633,11 @@ Qt::ApplicationState QGuiApplication::applicationState()
("small UI") or as 2x ("large UI"). See the Qt::HighDpiScaleFactorRoundingPolicy
enum for a complete list of all options.
- This function must be called before creating the application object,
- and can be overridden by setting the QT_SCALE_FACTOR_ROUNDING_POLICY
- environment variable. The QGuiApplication::highDpiScaleFactorRoundingPolicy()
+ This function must be called before creating the application object.
+ The QGuiApplication::highDpiScaleFactorRoundingPolicy()
accessor will reflect the environment, if set.
- The default value is Qt::HighDpiScaleFactorRoundingPolicy::Round.
- On Qt for Android the default is Qt::HighDpiScaleFactorRoundingPolicy::PassThrough,
- which preserves historical behavior from earlier Qt versions.
+ The default value is Qt::HighDpiScaleFactorRoundingPolicy::PassThrough.
void QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy policy)