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-rw-r--r--src/widgets/kernel/qwidget.cpp25
1 files changed, 24 insertions, 1 deletions
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 0a7566614b..e286782d6f 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -2445,7 +2445,7 @@ WId QWidget::effectiveWinId() const
\since 5.0
- \sa winId()
+ \sa winId(), screen()
*/
QWindow *QWidget::windowHandle() const
{
@@ -2453,6 +2453,29 @@ QWindow *QWidget::windowHandle() const
return d->windowHandle();
}
+/*!
+ Returns the screen the widget is on.
+
+ \since 5.14
+
+ \sa windowHandle()
+*/
+QScreen *QWidget::screen() const
+{
+ Q_D(const QWidget);
+ if (auto associatedScreen = d->associatedScreen())
+ return associatedScreen;
+ if (auto topLevel = window()) {
+ if (auto topData = qt_widget_private(topLevel)->topData()) {
+ if (auto initialScreen = QGuiApplicationPrivate::screen_list.value(topData->initialScreenIndex))
+ return initialScreen;
+ }
+ if (auto screenByPos = QGuiApplication::screenAt(topLevel->geometry().center()))
+ return screenByPos;
+ }
+ return QGuiApplication::primaryScreen();
+}
+
#ifndef QT_NO_STYLE_STYLESHEET
/*!