3 files changed, 11 insertions, 0 deletions
diff --git a/src/widgets/styles/qcommonstyle.cpp b/src/widgets/styles/qcommonstyle.cpp
index 4c01807ca7..544cc5ef95 100644
--- a/src/widgets/styles/qcommonstyle.cpp
+++ b/src/widgets/styles/qcommonstyle.cpp
@@ -5306,6 +5306,9 @@ int QCommonStyle::styleHint(StyleHint sh, const QStyleOption *opt, const QWidget
     case SH_SpinBox_ButtonsInsideFrame:
         ret = true;
         break;
+    case SH_SpinBox_StepModifier:
+        ret = Qt::ControlModifier;
+        break;
     default:
         ret = 0;
         break;
diff --git a/src/widgets/styles/qstyle.cpp b/src/widgets/styles/qstyle.cpp
index 73a6554f1a..8006be8c27 100644
--- a/src/widgets/styles/qstyle.cpp
+++ b/src/widgets/styles/qstyle.cpp
@@ -2001,6 +2001,13 @@ void QStyle::drawItemPixmap(QPainter *painter, const QRect &rect, int alignment,
            Determnines if the spin box buttons are inside the line edit frame.
            This enum value has been introduced in Qt 5.11.
 
+    \value SH_SpinBox_StepModifier
+           Determines which Qt::KeyboardModifier increases the step rate of
+           QAbstractSpinBox. Possible values are Qt::NoModifier,
+           Qt::ControlModifier (default) or Qt::ShiftModifier. Qt::NoModifier
+           disables this feature.
+           This enum value has been introduced in Qt 5.12.
+
     \sa styleHint()
 */
 
diff --git a/src/widgets/styles/qstyle.h b/src/widgets/styles/qstyle.h
index cef569d514..9192dae864 100644
--- a/src/widgets/styles/qstyle.h
+++ b/src/widgets/styles/qstyle.h
@@ -741,6 +741,7 @@ public:
         SH_Widget_Animation_Duration,
         SH_ComboBox_AllowWheelScrolling,
         SH_SpinBox_ButtonsInsideFrame,
+        SH_SpinBox_StepModifier,
         // Add new style hint values here
 
         SH_CustomBase = 0xf0000000