diff --git a/examples/corelib/threads/doc/src/mandelbrot.qdoc b/examples/corelib/threads/doc/src/mandelbrot.qdoc
index 274874632eb..9e3fdc1dfe0 100644
--- a/examples/corelib/threads/doc/src/mandelbrot.qdoc
+++ b/examples/corelib/threads/doc/src/mandelbrot.qdoc
@@ -304,8 +304,8 @@
     \snippet threads/mandelbrot/mandelbrotwidget.cpp 12
 
     The wheel event handler is reimplemented to make the mouse wheel
-    control the zoom level. QWheelEvent::delta() returns the angle of
-    the wheel mouse movement, in eights of a degree. For most mice,
+    control the zoom level. QWheelEvent::angleDelta() returns the angle
+    of the wheel mouse movement, in eighths of a degree. For most mice,
     one wheel step corresponds to 15 degrees. We find out how many
     mouse steps we have and determine the resulting zoom factor.
     For example, if we have two wheel steps in the positive direction
diff --git a/examples/corelib/threads/mandelbrot/mandelbrotwidget.cpp b/examples/corelib/threads/mandelbrot/mandelbrotwidget.cpp
index 71d0abb09f2..822791533b0 100644
--- a/examples/corelib/threads/mandelbrot/mandelbrotwidget.cpp
+++ b/examples/corelib/threads/mandelbrot/mandelbrotwidget.cpp
@@ -176,7 +176,7 @@ void MandelbrotWidget::keyPressEvent(QKeyEvent *event)
 //! [12]
 void MandelbrotWidget::wheelEvent(QWheelEvent *event)
 {
-    int numDegrees = event->delta() / 8;
+    int numDegrees = event->angleDelta().y() / 8;
     double numSteps = numDegrees / 15.0f;
     zoom(pow(ZoomInFactor, numSteps));
 }
diff --git a/examples/widgets/graphicsview/chip/view.cpp b/examples/widgets/graphicsview/chip/view.cpp
index 9676c13ff7b..7d5fd699a41 100644
--- a/examples/widgets/graphicsview/chip/view.cpp
+++ b/examples/widgets/graphicsview/chip/view.cpp
@@ -68,7 +68,7 @@
 void GraphicsView::wheelEvent(QWheelEvent *e)
 {
     if (e->modifiers() & Qt::ControlModifier) {
-        if (e->delta() > 0)
+        if (e->angleDelta().y() > 0)
             view->zoomIn(6);
         else
             view->zoomOut(6);
diff --git a/examples/widgets/graphicsview/elasticnodes/graphwidget.cpp b/examples/widgets/graphicsview/elasticnodes/graphwidget.cpp
index 6b817b2a216..9341d77f8db 100644
--- a/examples/widgets/graphicsview/elasticnodes/graphwidget.cpp
+++ b/examples/widgets/graphicsview/elasticnodes/graphwidget.cpp
@@ -190,7 +190,7 @@ void GraphWidget::timerEvent(QTimerEvent *event)
 //! [5]
 void GraphWidget::wheelEvent(QWheelEvent *event)
 {
-    scaleView(pow((double)2, -event->delta() / 240.0));
+    scaleView(pow((double)2, -event->angleDelta().y() / 240.0));
 }
 //! [5]
 #endif
diff --git a/examples/widgets/painting/affine/xform.cpp b/examples/widgets/painting/affine/xform.cpp
index 482e0f3268f..50acf0f814c 100644
--- a/examples/widgets/painting/affine/xform.cpp
+++ b/examples/widgets/painting/affine/xform.cpp
@@ -260,7 +260,7 @@ void XFormView::timerEvent(QTimerEvent *e)
 #if QT_CONFIG(wheelevent)
 void XFormView::wheelEvent(QWheelEvent *e)
 {
-    m_scale += e->delta() / qreal(600);
+    m_scale += e->angleDelta().y() / qreal(600);
     m_scale = qMax(qreal(0.1), qMin(qreal(4), m_scale));
     emit scaleChanged(int(m_scale*1000));
 }
diff --git a/examples/widgets/widgets/mousebuttons/buttontester.cpp b/examples/widgets/widgets/mousebuttons/buttontester.cpp
index 66532216982..88dbbeda455 100644
--- a/examples/widgets/widgets/mousebuttons/buttontester.cpp
+++ b/examples/widgets/widgets/mousebuttons/buttontester.cpp
@@ -93,15 +93,16 @@ void ButtonTester::mouseDoubleClickEvent(QMouseEvent *e)
 void ButtonTester::wheelEvent (QWheelEvent *e)
 {
     QString result;
-    if (e->delta() > 0) {
-
-        if (e->orientation() == Qt::Vertical) {
+    const bool vertical = qAbs(e->angleDelta().y()) >= qAbs(e->angleDelta().x());
+    const int delta = vertical ? e->angleDelta().y() : e->angleDelta().x();
+    if (delta > 0) {
+        if (vertical) {
             result = "Mouse Wheel Event: UP";
         } else {
             result = "Mouse Wheel Event: LEFT";
         }
-    } else if (e->delta() < 0) {
-        if (e->orientation() == Qt::Vertical) {
+    } else if (delta < 0) {
+        if (vertical) {
             result = "Mouse Wheel Event: DOWN";
         } else {
             result = "Mouse Wheel Event: RIGHT";
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp
index d79066adf28..616cca14222 100644
--- a/src/gui/kernel/qevent.cpp
+++ b/src/gui/kernel/qevent.cpp
@@ -743,12 +743,14 @@ QHoverEvent::~QHoverEvent()
     \l inverted always returns false.
 */
 
+#if QT_DEPRECATED_SINCE(5, 15)
 /*!
     \fn Qt::Orientation QWheelEvent::orientation() const
     \obsolete
 
     Use angleDelta() instead.
 */
+#endif
 
 #if QT_CONFIG(wheelevent)
 #if QT_DEPRECATED_SINCE(5, 15)
@@ -929,6 +931,7 @@ QWheelEvent::~QWheelEvent()
     \endlist
 */
 
+#if QT_DEPRECATED_SINCE(5, 15)
 /*!
     \fn int QWheelEvent::delta() const
     \obsolete
@@ -992,6 +995,7 @@ QWheelEvent::~QWheelEvent()
 
     This function has been deprecated, use globalPosition() instead.
 */
+#endif
 
 /*!
     \fn Qt::ScrollPhase QWheelEvent::phase() const