1 files changed, 13 insertions, 7 deletions
diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index 57fe8fa287e..46a787e7064 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -2231,20 +2231,26 @@ QObject *QWindow::focusObject() const
 /*!
     Shows the window.
 
-    This is equivalent to calling showFullScreen(), showMaximized(), or showNormal(),
+    For child windows, this is equivalent to calling showNormal().
+    Otherwise, it is equivalent to calling showFullScreen(), showMaximized(), or showNormal(),
     depending on the platform's default behavior for the window type and flags.
 
     \sa showFullScreen(), showMaximized(), showNormal(), hide(), QStyleHints::showIsFullScreen(), flags()
 */
 void QWindow::show()
 {
-    Qt::WindowState defaultState = QGuiApplicationPrivate::platformIntegration()->defaultWindowState(d_func()->windowFlags);
-    if (defaultState == Qt::WindowFullScreen)
-        showFullScreen();
-    else if (defaultState == Qt::WindowMaximized)
-        showMaximized();
-    else
+    if (parent()) {
         showNormal();
+    } else {
+        const auto *platformIntegration = QGuiApplicationPrivate::platformIntegration();
+        Qt::WindowState defaultState = platformIntegration->defaultWindowState(d_func()->windowFlags);
+        if (defaultState == Qt::WindowFullScreen)
+            showFullScreen();
+        else if (defaultState == Qt::WindowMaximized)
+            showMaximized();
+        else
+            showNormal();
+    }
 }
 
 /*!