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Merge pull request #21602 from paroj:hidpi

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Alexander Alekhin 2022-02-16 18:37:15 +00:00
commit d3e0193c8a
1 changed files with 3 additions and 0 deletions
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modules/highgui/src/window_QT.cpp
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@ -529,6 +529,9 @@ static int icvInitSystem(int* c, char** v)
//"For any GUI application using Qt, there is precisely one QApplication object"
if (!QApplication::instance())
{
#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling, true);
#endif
new QApplication(*c, v);
setlocale(LC_NUMERIC,"C");