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Update setHighDpiScaleFactorRoundingPolicy docs

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The default is now passthrough. And let's not mention the
environment variable overrides, as they are meant for internal
testing.

Pick-to: 6.0
Pick-to: 6.0.0
Change-Id: Ie2409e5411d4bdcdf041834cb5ca9e1215aa173a
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This commit is contained in:
Tor Arne Vestbø 2020-11-27 11:56:10 +01:00
parent 05bb9b1016
commit 58afadc624
2 changed files with 4 additions and 8 deletions
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3
src/corelib/global/qnamespace.qdoc
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@ -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()

9
src/gui/kernel/qguiapplication.cpp
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@ -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)
{