From 4a00f53c17989b5eedb59967dd09fa17e229fe39 Mon Sep 17 00:00:00 2001
From: Eike Ziller <eike.ziller@qt.io>
Date: Thu, 2 Jan 2020 14:26:27 +0100
Subject: [PATCH] Work around high DPI issues on Windows

Task-number: QTBUG-80934
Change-Id: I4b7dbe7157145db3a9feee83f32be3babaca5ab9
Reviewed-by: David Schulz <david.schulz@qt.io>
---
 src/app/main.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/app/main.cpp b/src/app/main.cpp
index 4b74be64dce..e0c9cd72bd2 100644
--- a/src/app/main.cpp
+++ b/src/app/main.cpp
@@ -335,6 +335,11 @@ static void setHighDpiEnvironmentVariable()
             && !qEnvironmentVariableIsSet("QT_SCALE_FACTOR")
             && !qEnvironmentVariableIsSet("QT_SCREEN_SCALE_FACTORS")) {
         QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+        // work around QTBUG-80934
+        QGuiApplication::setHighDpiScaleFactorRoundingPolicy(
+            Qt::HighDpiScaleFactorRoundingPolicy::Round);
+#endif
     }
 }