Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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QIOSWindow Class Reference

#include <qioswindow.h>

+ Inheritance diagram for QIOSWindow:
+ Collaboration diagram for QIOSWindow:

Public Member Functions

 QIOSWindow (QWindow *window, WId nativeHandle=0)
 
 ~QIOSWindow ()
 
void setGeometry (const QRect &rect) override
 This function is called by Qt whenever a window is moved or resized using the QWindow API.
 
void setWindowState (Qt::WindowStates state) override
 Requests setting the window state of this surface to type.
 
void setParent (const QPlatformWindow *window) override
 This function is called to enable native child window in QPA.
 
void setVisible (bool visible) override
 Reimplemented in subclasses to show the surface if visible is true, and hide it if visible is false.
 
void setOpacity (qreal level) override
 Reimplement to be able to let Qt set the opacity level of a window.
 
bool isExposed () const override
 Returns if this window is exposed in the windowing system.
 
void propagateSizeHints () override
 Reimplement to propagate the size hints of the QWindow.
 
QMargins safeAreaMargins () const override
 The safe area margins of a window represent the area that is safe to place content within, without intersecting areas of the screen where system UI is placed, or where a screen bezel may cover the content.
 
void raise () override
 Reimplement to be able to let Qt raise windows to the top of the desktop.
 
void lower () override
 Reimplement to be able to let Qt lower windows to the bottom of the desktop.
 
bool shouldAutoActivateWindow () const
 
void requestActivateWindow () override
 Reimplement to let Qt be able to request activation/focus for a window.
 
qreal devicePixelRatio () const override
 Reimplement this function in subclass to return the device pixel ratio for the window.
 
bool setMouseGrabEnabled (bool grab) override
 
bool setKeyboardGrabEnabled (bool grab) override
 
WId winId () const override
 Reimplement in subclasses to return a handle to the native window.
 
void clearAccessibleCache ()
 
QSurfaceFormat format () const override
 Returns the actual surface format of the window.
 
void requestUpdate () override
 Requests an QEvent::UpdateRequest event.
 
void setMask (const QRegion &region) override
 Reimplement to be able to let Qt set the mask of a window.
 
bool isForeignWindow () const override
 
UIView * view () const
 
- Public Member Functions inherited from QObject
Q_INVOKABLE QObject (QObject *parent=nullptr)
 Constructs an object with parent object parent.
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects.
 
virtual bool event (QEvent *event)
 This virtual function receives events to an object and should return true if the event e was recognized and processed.
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 Filters events if this object has been installed as an event filter for the watched object.
 
QString objectName () const
 
Q_WEAK_OVERLOAD void setObjectName (const QString &name)
 Sets the object's name to name.
 
void setObjectName (QAnyStringView name)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
QBindable< QStringbindableObjectName ()
 
bool isWidgetType () const
 Returns true if the object is a widget; otherwise returns false.
 
bool isWindowType () const
 Returns true if the object is a window; otherwise returns false.
 
bool isQuickItemType () const
 Returns true if the object is a QQuickItem; otherwise returns false.
 
bool signalsBlocked () const noexcept
 Returns true if signals are blocked; otherwise returns false.
 
bool blockSignals (bool b) noexcept
 If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
 
QThreadthread () const
 Returns the thread in which the object lives.
 
bool moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
 Changes the thread affinity for this object and its children and returns true on success.
 
int startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
 This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
 
int startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)
 
void killTimer (int id)
 Kills the timer with timer identifier, id.
 
void killTimer (Qt::TimerId id)
 
template<typename T >
findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
 
template<typename T >
QList< T > findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.
 
template<typename T >
findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
template<typename T >
QList< T > findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
const QObjectListchildren () const
 Returns a list of child objects.
 
void setParent (QObject *parent)
 Makes the object a child of parent.
 
void installEventFilter (QObject *filterObj)
 Installs an event filter filterObj on this object.
 
void removeEventFilter (QObject *obj)
 Removes an event filter object obj from this object.
 
QMetaObject::Connection connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
 
bool disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const
 
bool disconnect (const QObject *receiver, const char *member=nullptr) const
 
void dumpObjectTree () const
 Dumps a tree of children to the debug output.
 
void dumpObjectInfo () const
 Dumps information about signal connections, etc.
 
bool setProperty (const char *name, const QVariant &value)
 Sets the value of the object's name property to value.
 
bool setProperty (const char *name, QVariant &&value)
 
QVariant property (const char *name) const
 Returns the value of the object's name property.
 
QList< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () const
 Returns a pointer to the parent object.
 
bool inherits (const char *classname) const
 Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.
 
- Public Member Functions inherited from QPlatformWindow
 QPlatformWindow (QWindow *window)
 Constructs a platform window with the given top level window.
 
 ~QPlatformWindow () override
 Virtual destructor does not delete its top level window.
 
virtual void initialize ()
 Called as part of QWindow::create(), after constructing the window.
 
QWindowwindow () const
 Returns the window which belongs to the QPlatformWindow.
 
QPlatformWindowparent () const
 Returns the parent platform window (or \nullptr if orphan).
 
QPlatformScreenscreen () const override
 Returns the platform screen handle corresponding to this platform window, or null if the window is not associated with a screen.
 
virtual QRect geometry () const
 Returns the current geometry of a window.
 
virtual QRect normalGeometry () const
 Returns the geometry of a window in 'normal' state (neither maximized, fullscreen nor minimized) for saving geometries to application settings.
 
virtual QMargins frameMargins () const
 
virtual void setWindowFlags (Qt::WindowFlags flags)
 Requests setting the window flags of this surface to flags.
 
virtual void setWindowTitle (const QString &title)
 Reimplement to set the window title to title.
 
virtual void setWindowFilePath (const QString &title)
 Reimplement to set the window file path to filePath.
 
virtual void setWindowIcon (const QIcon &icon)
 Reimplement to set the window icon to icon.
 
virtual bool close ()
 Reimplement to let the platform handle non-spontaneous window close.
 
virtual bool isActive () const
 Returns true if the window should appear active from a style perspective.
 
virtual bool isAncestorOf (const QPlatformWindow *child) const
 Returns true if the window is an ancestor of the given child.
 
virtual bool isEmbedded () const
 Returns true if the window is a child of a non-Qt window.
 
virtual QPoint mapToGlobal (const QPoint &pos) const
 Translates the window coordinate pos to global screen coordinates using native methods.
 
QPointF mapToGlobalF (const QPointF &pos) const
 
virtual QPoint mapFromGlobal (const QPoint &pos) const
 Translates the global screen coordinate pos to window coordinates using native methods.
 
QPointF mapFromGlobalF (const QPointF &pos) const
 
virtual void handleContentOrientationChange (Qt::ScreenOrientation orientation)
 Handle changes to the orientation of the platform window's contents.
 
virtual bool setWindowModified (bool modified)
 Reimplement to be able to let Qt indicate that the window has been modified.
 
virtual bool windowEvent (QEvent *event)
 Reimplement this method to be able to do any platform specific event handling.
 
virtual bool startSystemResize (Qt::Edges edges)
 Reimplement this method to start a system resize operation if the system supports it and return true to indicate success.
 
virtual bool startSystemMove ()
 Reimplement this method to start a system move operation if the system supports it and return true to indicate success.
 
virtual void setFrameStrutEventsEnabled (bool enabled)
 Reimplement this method to set whether frame strut events should be sent to enabled.
 
virtual bool frameStrutEventsEnabled () const
 Reimplement this method to return whether frame strut events are enabled.
 
virtual void setAlertState (bool enabled)
 Reimplement this method to set whether the window demands attention (for example, by flashing the taskbar icon) depending on enabled.
 
virtual bool isAlertState () const
 Reimplement this method return whether the window is in an alert state.
 
virtual void invalidateSurface ()
 Invalidates the window's surface by releasing its surface buffers.
 
bool hasPendingUpdateRequest () const
 Returns true if the window has a pending update request.
 
virtual void deliverUpdateRequest ()
 Delivers an QEvent::UpdateRequest event to the window.
 
QSize windowMinimumSize () const
 Returns the QWindow minimum size.
 
QSize windowMaximumSize () const
 Returns the QWindow maximum size.
 
QSize windowBaseSize () const
 Returns the QWindow base size.
 
QSize windowSizeIncrement () const
 Returns the QWindow size increment.
 
QRect windowGeometry () const
 Returns the QWindow geometry.
 
QRect windowFrameGeometry () const
 Returns the QWindow frame geometry.
 
QRectF windowClosestAcceptableGeometry (const QRectF &nativeRect) const
 
- Public Member Functions inherited from QPlatformSurface
virtual ~QPlatformSurface ()
 
QSurfacesurface () const
 

Friends

class QIOSScreen
 

Additional Inherited Members

- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 
- Signals inherited from QObject
void destroyed (QObject *=nullptr)
 This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
 
void objectNameChanged (const QString &objectName, QPrivateSignal)
 This signal is emitted after the object's name has been changed.
 
- Static Public Member Functions inherited from QObject
static QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 \threadsafe
 
static QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 \threadsafe
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static bool disconnect (const QMetaObject::Connection &)
 Disconnect a connection.
 
template<typename Func1 , typename Func2 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot)
 
template<typename Func1 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero)
 
- Static Public Member Functions inherited from QPlatformWindow
static QRect initialGeometry (const QWindow *w, const QRect &initialGeometry, int defaultWidth, int defaultHeight, const QScreen **resultingScreenReturn=nullptr)
 Helper function to get initial geometry on windowing systems which do not do smart positioning and also do not provide a means of centering a transient window w.r.t.
 
static QRectF closestAcceptableGeometry (const QWindow *w, const QRectF &nativeRect)
 Returns the closest acceptable geometry for a given geometry before a resize/move event for platforms that support it, for example to implement heightForWidth().
 
- Static Public Member Functions inherited from QPlatformSurface
static bool isRasterSurface (QSurface *surface)
 
- Protected Member Functions inherited from QObject
QObjectsender () const
 Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.
 
int senderSignalIndex () const
 
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal.
 
bool isSignalConnected (const QMetaMethod &signal) const
 
virtual void timerEvent (QTimerEvent *event)
 This event handler can be reimplemented in a subclass to receive timer events for the object.
 
virtual void childEvent (QChildEvent *event)
 This event handler can be reimplemented in a subclass to receive child events.
 
virtual void customEvent (QEvent *event)
 This event handler can be reimplemented in a subclass to receive custom events.
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
 QObject (QObjectPrivate &dd, QObject *parent=nullptr)
 
- Protected Member Functions inherited from QPlatformWindow
QPlatformScreenscreenForGeometry (const QRect &newGeometry) const
 Helper function for finding the new screen for newGeometry in response to a geometry changed event.
 
- Static Protected Member Functions inherited from QPlatformWindow
static QString formatWindowTitle (const QString &title, const QString &separator)
 Call this method to put together a window title composed of title separator the application display name.
 
static QSize constrainWindowSize (const QSize &size)
 Returns a size with both dimensions bounded to [0, QWINDOWSIZE_MAX].
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 
- Protected Attributes inherited from QPlatformWindow
QScopedPointer< QPlatformWindowPrivated_ptr
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Detailed Description

Definition at line 19 of file qioswindow.h.

Constructor & Destructor Documentation

◆ QIOSWindow()

◆ ~QIOSWindow()

QIOSWindow::~QIOSWindow ( )

Definition at line 85 of file qioswindow.mm.

References clearAccessibleCache(), isForeignWindow(), QPlatformWindow::parent(), quiview_cast(), release(), and set.

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Member Function Documentation

◆ clearAccessibleCache()

void QIOSWindow::clearAccessibleCache ( )

Definition at line 400 of file qioswindow.mm.

References clearAccessibleCache(), isForeignWindow(), and quiview_cast().

Referenced by ~QIOSWindow(), and clearAccessibleCache().

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◆ devicePixelRatio()

qreal QIOSWindow::devicePixelRatio ( ) const
overridevirtual

Reimplement this function in subclass to return the device pixel ratio for the window.

This is the ratio between physical pixels and device-independent pixels.

See also
QPlatformWindow::devicePixelRatio();

Reimplemented from QPlatformWindow.

Definition at line 395 of file qioswindow.mm.

◆ format()

QSurfaceFormat QIOSWindow::format ( ) const
overridevirtual

Returns the actual surface format of the window.

Reimplemented from QPlatformWindow.

Definition at line 108 of file qioswindow.mm.

References QPlatformWindow::window().

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◆ isExposed()

bool QIOSWindow::isExposed ( ) const
overridevirtual

Returns if this window is exposed in the windowing system.

An exposeEvent() is sent every time this value changes.

Reimplemented from QPlatformWindow.

Definition at line 236 of file qioswindow.mm.

References Qt::ApplicationSuspended, QRect::isEmpty(), qApp, and QPlatformWindow::window().

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◆ isForeignWindow()

bool QIOSWindow::isForeignWindow ( ) const
overridevirtual

Reimplemented from QPlatformWindow.

Definition at line 469 of file qioswindow.mm.

Referenced by QIOSWindow(), ~QIOSWindow(), clearAccessibleCache(), and setParent().

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◆ lower()

void QIOSWindow::lower ( )
inlineoverridevirtual

Reimplement to be able to let Qt lower windows to the bottom of the desktop.

Reimplemented from QPlatformWindow.

Definition at line 40 of file qioswindow.h.

◆ propagateSizeHints()

void QIOSWindow::propagateSizeHints ( )
inlineoverridevirtual

Reimplement to propagate the size hints of the QWindow.

The size hints include QWindow::minimumSize(), QWindow::maximumSize(), QWindow::sizeIncrement(), and QWindow::baseSize().

Reimplemented from QPlatformWindow.

Definition at line 35 of file qioswindow.h.

◆ raise()

void QIOSWindow::raise ( )
inlineoverridevirtual

Reimplement to be able to let Qt raise windows to the top of the desktop.

Reimplemented from QPlatformWindow.

Definition at line 39 of file qioswindow.h.

Referenced by requestActivateWindow(), and setVisible().

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◆ requestActivateWindow()

void QIOSWindow::requestActivateWindow ( )
overridevirtual

Reimplement to let Qt be able to request activation/focus for a window.

Some window systems will probably not have callbacks for this functionality, and then calling QWindowSystemInterface::handleFocusWindowChanged(QWindow *w) would be sufficient.

If the window system has some event handling/callbacks then call QWindowSystemInterface::handleFocusWindowChanged(QWindow *w) when the window system gives the notification.

Default implementation calls QWindowSystem::handleFocusWindowChanged(QWindow *w)

Reimplemented from QPlatformWindow.

Definition at line 313 of file qioswindow.mm.

References raise(), and QPlatformWindow::window().

Referenced by setVisible().

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◆ requestUpdate()

void QIOSWindow::requestUpdate ( )
overridevirtual

Requests an QEvent::UpdateRequest event.

The event will be delivered to the QWindow.

QPlatformWindow subclasses can re-implement this function to provide display refresh synchronized updates. The event should be delivered using QPlatformWindow::deliverUpdateRequest() to not get out of sync with the internal state of QWindow.

The default implementation posts an UpdateRequest event to the window after an interval that is at most 5 ms. If the window's associated screen reports a \l{QPlatformScreen::refreshRate()}{refresh rate} higher than 60 Hz, the interval is scaled down to a valid smaller than 5. The additional time is there to give the event loop a bit of idle time to gather system events.

Reimplemented from QPlatformWindow.

Definition at line 408 of file qioswindow.mm.

References QPlatformWindow::screen().

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◆ safeAreaMargins()

QMargins QIOSWindow::safeAreaMargins ( ) const
overridevirtual

The safe area margins of a window represent the area that is safe to place content within, without intersecting areas of the screen where system UI is placed, or where a screen bezel may cover the content.

Reimplemented from QPlatformWindow.

Definition at line 229 of file qioswindow.mm.

◆ setGeometry()

void QIOSWindow::setGeometry ( const QRect & rect)
overridevirtual

This function is called by Qt whenever a window is moved or resized using the QWindow API.

Unless you also override QPlatformWindow::geometry(), you need to call the baseclass implementation of this function in any override of QPlatformWindow::setGeometry(), as QWindow::geometry() is expected to report back the set geometry until a confirmation (or rejection) of the new geometry comes back from the window manager and is reported via QWindowSystemInterface::handleGeometryChange().

Window move/resizes can also be triggered spontaneously by the window manager, or as a response to an earlier requested move/resize via the Qt APIs. There is no need to call this function from the window manager callback, instead call QWindowSystemInterface::handleGeometryChange().

The position(x, y) part of the rect might be inclusive or exclusive of the window frame as returned by frameMargins(). You can detect this in the plugin by checking qt_window_private(window())->positionPolicy.

Reimplemented from QPlatformWindow.

Definition at line 182 of file qioswindow.mm.

References QWindowSystemInterface::handleWindowStateChanged(), QObject::inherits(), rect, QPlatformWindow::setGeometry(), QPlatformWindow::window(), and Qt::WindowNoState.

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◆ setKeyboardGrabEnabled()

bool QIOSWindow::setKeyboardGrabEnabled ( bool grab)
inlineoverridevirtual

Reimplemented from QPlatformWindow.

Definition at line 48 of file qioswindow.h.

◆ setMask()

void QIOSWindow::setMask ( const QRegion & region)
overridevirtual

Reimplement to be able to let Qt set the mask of a window.

Reimplemented from QPlatformWindow.

Definition at line 413 of file qioswindow.mm.

References QRegion::isEmpty().

Referenced by QIOSWindow().

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◆ setMouseGrabEnabled()

bool QIOSWindow::setMouseGrabEnabled ( bool grab)
inlineoverridevirtual

Reimplemented from QPlatformWindow.

Definition at line 47 of file qioswindow.h.

◆ setOpacity()

void QIOSWindow::setOpacity ( qreal level)
overridevirtual

Reimplement to be able to let Qt set the opacity level of a window.

Reimplemented from QPlatformWindow.

Definition at line 177 of file qioswindow.mm.

References qBound().

Referenced by QIOSWindow().

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◆ setParent()

void QIOSWindow::setParent ( const QPlatformWindow * parent)
overridevirtual

This function is called to enable native child window in QPA.

It is common not to support this feature in Window systems, but can be faked. When this function is called all geometry of this platform window will be relative to the parent.

Reimplemented from QPlatformWindow.

Definition at line 299 of file qioswindow.mm.

References isForeignWindow(), isQtApplication(), quiview_cast(), rootViewForScreen(), QPlatformWindow::window(), and QPlatformWindow::winId().

Referenced by QIOSWindow().

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◆ setVisible()

void QIOSWindow::setVisible ( bool visible)
overridevirtual

Reimplemented in subclasses to show the surface if visible is true, and hide it if visible is false.

The default implementation sends a synchronous expose event.

Reimplemented from QPlatformWindow.

Definition at line 120 of file qioswindow.mm.

References i, isQtApplication(), property, quiview_cast(), raise(), requestActivateWindow(), shouldAutoActivateWindow(), toBool(), view(), and QPlatformWindow::window().

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◆ setWindowState()

void QIOSWindow::setWindowState ( Qt::WindowStates state)
overridevirtual

Requests setting the window state of this surface to type.

Qt::WindowActive can be ignored.

Reimplemented from QPlatformWindow.

Definition at line 242 of file qioswindow.mm.

References QPlatformScreen::geometry(), QPlatformWindow::isActive(), isRunningOnVisionOS(), isVisible(), Qt::MaximizeUsingFullscreenGeometryHint, qt_window_private(), QPlatformWindow::screen(), state, QPlatformWindow::window(), Qt::WindowFullScreen, Qt::WindowMaximized, and Qt::WindowMinimized.

Referenced by QIOSWindow().

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◆ shouldAutoActivateWindow()

bool QIOSWindow::shouldAutoActivateWindow ( ) const

Definition at line 165 of file qioswindow.mm.

References Qt::Popup, Qt::ToolTip, and QPlatformWindow::window().

Referenced by setVisible().

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◆ view()

UIView * QIOSWindow::view ( ) const

Definition at line 474 of file qioswindow.mm.

Referenced by setVisible().

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◆ winId()

WId QIOSWindow::winId ( ) const
inlineoverridevirtual

Reimplement in subclasses to return a handle to the native window.

Reimplemented from QPlatformWindow.

Definition at line 50 of file qioswindow.h.

Referenced by QIOSIntegration::nativeResourceForWindow().

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Friends And Related Symbol Documentation

◆ QIOSScreen

friend class QIOSScreen
friend

Definition at line 80 of file qioswindow.h.


The documentation for this class was generated from the following files: