13 files changed, 30 insertions, 30 deletions
diff --git a/src/gui/accessible/qaccessible.cpp b/src/gui/accessible/qaccessible.cpp
index a3f53e149b..46dec7f28d 100644
--- a/src/gui/accessible/qaccessible.cpp
+++ b/src/gui/accessible/qaccessible.cpp
@@ -654,7 +654,7 @@ void QAccessible::removeActivationObserver(ActivationObserver *observer)
 /*!
     If a QAccessibleInterface implementation exists for the given \a object,
     this function returns a pointer to the implementation; otherwise it
-    returns 0.
+    returns \nullptr.
 
     The function calls all installed factory functions (from most
     recently installed to least recently installed) until one is found
@@ -770,7 +770,7 @@ QAccessible::Id QAccessible::uniqueId(QAccessibleInterface *iface)
 /*!
     Returns the QAccessibleInterface belonging to the \a id.
 
-    Returns 0 if the id is invalid.
+    Returns \nullptr if the id is invalid.
 */
 QAccessibleInterface *QAccessible::accessibleInterface(Id id)
 {
@@ -1119,7 +1119,7 @@ QAccessibleInterface *QAccessibleInterface::focusChild() const
     \fn QAccessibleInterface *QAccessibleInterface::childAt(int x, int y) const
 
     Returns the QAccessibleInterface of a child that contains the screen coordinates (\a x, \a y).
-    If there are no children at this position this function returns 0.
+    If there are no children at this position this function returns \nullptr.
     The returned accessible must be a child, but not necessarily a direct child.
 
     This function is only relyable for visible objects (invisible
@@ -1139,7 +1139,7 @@ QAccessibleInterface *QAccessibleInterface::focusChild() const
 
     Returns the QAccessibleInterface of the parent in the accessible object hierarchy.
 
-    Returns 0 if no parent exists (e.g. for the top level application object).
+    Returns \nullptr if no parent exists (e.g. for the top level application object).
 
     \sa child()
 */
@@ -1150,7 +1150,7 @@ QAccessibleInterface *QAccessibleInterface::focusChild() const
     Returns the accessible child with index \a index.
     0-based index. The number of children of an object can be checked with childCount.
 
-    Returns 0 when asking for an invalid child (e.g. when the child became invalid in the meantime).
+    Returns \nullptr when asking for an invalid child (e.g. when the child became invalid in the meantime).
 
     \sa childCount(), parent()
 */
@@ -1356,7 +1356,7 @@ QAccessibleEvent::~QAccessibleEvent()
     \internal
     Returns the uniqueId of the QAccessibleInterface represented by this event.
 
-    In case the object() function returns 0 this is the only way to access the
+    In case the object() function returns \nullptr, this is the only way to access the
     interface.
 */
 QAccessible::Id QAccessibleEvent::uniqueId() const
@@ -1786,7 +1786,7 @@ QAccessibleInterface *QAccessibleEvent::accessibleInterface() const
     (This means that at least one interface among the ancestors should
     return a valid QWindow pointer).
 
-    The default implementation returns 0.
+    The default implementation returns \nullptr.
   */
 QWindow *QAccessibleInterface::window() const
 {
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index 0105f1decd..6801e2e1ea 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -113,7 +113,7 @@ QImageData::QImageData()
     \internal
 
     Creates a new image data.
-    Returns 0 if invalid parameters are give or anything else failed.
+    Returns \nullptr if invalid parameters are give or anything else failed.
 */
 QImageData * QImageData::create(const QSize &size, QImage::Format format)
 {
diff --git a/src/gui/itemmodels/qstandarditemmodel.cpp b/src/gui/itemmodels/qstandarditemmodel.cpp
index 430ba152a9..7afad95bd9 100644
--- a/src/gui/itemmodels/qstandarditemmodel.cpp
+++ b/src/gui/itemmodels/qstandarditemmodel.cpp
@@ -879,8 +879,8 @@ QStandardItem::~QStandardItem()
 }
 
 /*!
-  Returns the item's parent item, or 0 if the item has no parent.
-  \note For toplevel items parent() returns 0. To receive toplevel
+  Returns the item's parent item, or \nullptr if the item has no parent.
+  \note For toplevel items parent() returns \nullptr. To receive toplevel
   item's parent use QStandardItemModel::invisibleRootItem() instead.
 
   \sa child(), QStandardItemModel::invisibleRootItem()
@@ -1548,7 +1548,7 @@ QModelIndex QStandardItem::index() const
   Returns the QStandardItemModel that this item belongs to.
 
   If the item is not a child of another item that belongs to the model, this
-  function returns 0.
+  function returns \nullptr.
 
   \sa index()
 */
@@ -1865,7 +1865,7 @@ void QStandardItem::setChild(int row, int column, QStandardItem *item)
 
 /*!
     Returns the child item at (\a row, \a column) if one has been set; otherwise
-    returns 0.
+    returns \nullptr.
 
     \sa setChild(), takeChild(), parent()
 */
@@ -1881,7 +1881,7 @@ QStandardItem *QStandardItem::child(int row, int column) const
 /*!
     Removes the child item at (\a row, \a column) without deleting it, and returns
     a pointer to the item. If there was no child at the given location, then
-    this function returns 0.
+    this function returns \nullptr.
 
     Note that this function, unlike takeRow() and takeColumn(), does not affect
     the dimensions of the child table.
@@ -2283,7 +2283,7 @@ void QStandardItemModel::clear()
     itemPrototype()), and set it in the parent item's child table, if no item
     already exists at that index.
 
-    If \a index is an invalid index, this function returns 0.
+    If \a index is an invalid index, this function returns \nullptr.
 
     \sa indexFromItem()
 */
@@ -2380,7 +2380,7 @@ void QStandardItemModel::setItem(int row, int column, QStandardItem *item)
     \since 4.2
 
     Returns the item for the given \a row and \a column if one has been set;
-    otherwise returns 0.
+    otherwise returns \nullptr.
 
     \sa setItem(), takeItem(), itemFromIndex()
 */
@@ -2453,7 +2453,7 @@ void QStandardItemModel::setHorizontalHeaderItem(int column, QStandardItem *item
     \since 4.2
 
     Returns the horizontal header item for \a column if one has been set;
-    otherwise returns 0.
+    otherwise returns \nullptr.
 
     \sa setHorizontalHeaderItem(), verticalHeaderItem()
 */
@@ -2509,7 +2509,7 @@ void QStandardItemModel::setVerticalHeaderItem(int row, QStandardItem *item)
     \since 4.2
 
     Returns the vertical header item for row \a row if one has been set;
-    otherwise returns 0.
+    otherwise returns \nullptr.
 
     \sa setVerticalHeaderItem(), horizontalHeaderItem()
 */
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp
index 53d1ac1fc0..7123c4d8ba 100644
--- a/src/gui/kernel/qevent.cpp
+++ b/src/gui/kernel/qevent.cpp
@@ -3072,7 +3072,7 @@ QDropEvent::~QDropEvent()
 /*!
     If the source of the drag operation is a widget in this
     application, this function returns that source; otherwise it
-    returns 0. The source of the operation is the first parameter to
+    returns \nullptr. The source of the operation is the first parameter to
     the QDrag object used instantiate the drag.
 
     This is useful if your widget needs special behavior when dragging
@@ -3514,7 +3514,7 @@ QActionEvent::~QActionEvent()
     \fn QAction *QActionEvent::before() const
 
     If type() is \l ActionAdded, returns the action that should
-    appear before action(). If this function returns 0, the action
+    appear before action(). If this function returns \nullptr, the action
     should be appended to already existing actions on the same
     widget.
 
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index a63e172461..fd01f8bb7b 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -3747,7 +3747,7 @@ Qt::LayoutDirection QGuiApplication::layoutDirection()
 
     Returns the active application override cursor.
 
-    This function returns 0 if no application cursor has been defined (i.e. the
+    This function returns \nullptr if no application cursor has been defined (i.e. the
     internal cursor stack is empty).
 
     \sa setOverrideCursor(), restoreOverrideCursor()
diff --git a/src/gui/kernel/qopenglcontext.cpp b/src/gui/kernel/qopenglcontext.cpp
index c5d5490ea0..be04513de6 100644
--- a/src/gui/kernel/qopenglcontext.cpp
+++ b/src/gui/kernel/qopenglcontext.cpp
@@ -1118,7 +1118,7 @@ void QOpenGLContext::swapBuffers(QSurface *surface)
 /*!
     Resolves the function pointer to an OpenGL extension function, identified by \a procName
 
-    Returns 0 if no such function can be found.
+    Returns \nullptr if no such function can be found.
 */
 QFunctionPointer QOpenGLContext::getProcAddress(const QByteArray &procName) const
 {
diff --git a/src/gui/kernel/qplatformcursor.cpp b/src/gui/kernel/qplatformcursor.cpp
index bab26f6028..76e38ab12d 100644
--- a/src/gui/kernel/qplatformcursor.cpp
+++ b/src/gui/kernel/qplatformcursor.cpp
@@ -84,7 +84,7 @@ QT_BEGIN_NAMESPACE
 
     \a windowCursor is a pointer to the QCursor that should be displayed.
 
-    To unset the cursor of \a window, 0 is passed. This means \a window does not have
+    To unset the cursor of \a window, \nullptr is passed. This means \a window does not have
     a cursor set and the cursor of a the first parent window which has a cursor explicitly
     set or the system default cursor should take effect.
 
diff --git a/src/gui/kernel/qplatformintegration.cpp b/src/gui/kernel/qplatformintegration.cpp
index 6e285a8fa5..7d1fcd4eeb 100644
--- a/src/gui/kernel/qplatformintegration.cpp
+++ b/src/gui/kernel/qplatformintegration.cpp
@@ -350,7 +350,7 @@ void QPlatformIntegration::destroy()
 /*!
   Returns the platforms input context.
 
-  The default implementation returns 0, implying no input method support.
+  The default implementation returns \nullptr, implying no input method support.
 */
 QPlatformInputContext *QPlatformIntegration::inputContext() const
 {
diff --git a/src/gui/kernel/qplatformscreen.cpp b/src/gui/kernel/qplatformscreen.cpp
index 9614be7f3e..b7b312e89e 100644
--- a/src/gui/kernel/qplatformscreen.cpp
+++ b/src/gui/kernel/qplatformscreen.cpp
@@ -370,7 +370,7 @@ QString QPlatformScreen::serialNumber() const
 /*!
     Reimplement this function in subclass to return the cursor of the screen.
 
-    The default implementation returns 0.
+    The default implementation returns \nullptr.
 */
 QPlatformCursor *QPlatformScreen::cursor() const
 {
diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index bc2d6e6a17..61ef029cbd 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -2644,7 +2644,7 @@ QOpenGLContext *QWindowPrivate::shareContext() const
     native window, or to embed a native window inside a QWindow.
 
     If foreign windows are not supported or embedding the native window
-    failed in the platform plugin, this function returns 0.
+    failed in the platform plugin, this function returns \nullptr.
 
     \note The resulting QWindow should not be used to manipulate the underlying
     native window (besides re-parenting), or to observe state changes of the
diff --git a/src/gui/painting/qpaintengine.cpp b/src/gui/painting/qpaintengine.cpp
index 1aee7d5f74..bfe1c9cadf 100644
--- a/src/gui/painting/qpaintengine.cpp
+++ b/src/gui/painting/qpaintengine.cpp
@@ -913,7 +913,7 @@ void QPaintEngine::setPaintDevice(QPaintDevice *device)
 
 /*!
     Returns the device that this engine is painting on, if painting is
-    active; otherwise returns 0.
+    active; otherwise returns \nullptr.
 */
 QPaintDevice *QPaintEngine::paintDevice() const
 {
diff --git a/src/gui/text/qtextcursor.cpp b/src/gui/text/qtextcursor.cpp
index af8fcf369c..7719a2e6da 100644
--- a/src/gui/text/qtextcursor.cpp
+++ b/src/gui/text/qtextcursor.cpp
@@ -2116,7 +2116,7 @@ QTextList *QTextCursor::createList(QTextListFormat::Style style)
 
 /*!
     Returns the current list if the cursor position() is inside a
-    block that is part of a list; otherwise returns 0.
+    block that is part of a list; otherwise returns \nullptr.
 
     \sa insertList(), createList()
  */
@@ -2176,7 +2176,7 @@ QTextTable *QTextCursor::insertTable(int rows, int cols, const QTextTableFormat
 
 /*!
     Returns a pointer to the current table if the cursor position()
-    is inside a block that is part of a table; otherwise returns 0.
+    is inside a block that is part of a table; otherwise returns \nullptr.
 
     \sa insertTable()
 */
@@ -2213,7 +2213,7 @@ QTextFrame *QTextCursor::insertFrame(const QTextFrameFormat &format)
 }
 
 /*!
-    Returns a pointer to the current frame. Returns 0 if the cursor is invalid.
+    Returns a pointer to the current frame. Returns \nullptr if the cursor is invalid.
 
     \sa insertFrame()
 */
diff --git a/src/gui/text/qtextobject.cpp b/src/gui/text/qtextobject.cpp
index e2130a09d9..0ed8be8530 100644
--- a/src/gui/text/qtextobject.cpp
+++ b/src/gui/text/qtextobject.cpp
@@ -1301,7 +1301,7 @@ const QTextDocument *QTextBlock::document() const
 
 /*!
     If the block represents a list item, returns the list that the item belongs
-    to; otherwise returns 0.
+    to; otherwise returns \nullptr.
 */
 QTextList *QTextBlock::textList() const
 {