#include <qquickmessagedialog_p.h>

Inheritance diagram for QQuickMessageDialog:

Collaboration diagram for QQuickMessageDialog:

Signals
void	textChanged ()

void	informativeTextChanged ()

void	detailedTextChanged ()

void	buttonsChanged ()

void	buttonClicked (QPlatformDialogHelper::StandardButton button, QPlatformDialogHelper::ButtonRole role)

Signals inherited from QQuickAbstractDialog
void	accepted ()

void	rejected ()

void	parentWindowChanged ()

void	titleChanged ()

void	flagsChanged ()

void	modalityChanged ()

void	visibleChanged ()

void	resultChanged ()

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.

Public Member Functions
	QQuickMessageDialog (QObject *parent=nullptr)
	A message dialog.

QString	text () const
	\qmlproperty string QtQuick.Dialogs::MessageDialog::text

void	setText (const QString &text)

QString	informativeText () const
	\qmlproperty string QtQuick.Dialogs::MessageDialog::informativeText

void	setInformativeText (const QString &text)

QString	detailedText () const
	\qmlproperty string QtQuick.Dialogs::MessageDialog::detailedText

void	setDetailedText (const QString &text)

QPlatformDialogHelper::StandardButtons	buttons () const
	\qmlproperty flags QtQuick.Dialogs::MessageDialog::buttons

void	setButtons (QPlatformDialogHelper::StandardButtons buttons)

Public Member Functions inherited from QQuickAbstractDialog
	QQuickAbstractDialog (QQuickDialogType type, QObject *parent=nullptr)
	The base class of native dialogs.

	~QQuickAbstractDialog ()

QPlatformDialogHelper *	handle () const

QQmlListProperty< QObject >	data ()

QWindow *	parentWindow () const
	\qmlproperty Window QtQuick.Dialogs::Dialog::parentWindow

void	setParentWindow (QWindow *window)

void	resetParentWindow ()

QString	title () const
	\qmlproperty string QtQuick.Dialogs::Dialog::title

void	setTitle (const QString &title)

Qt::WindowFlags	flags () const
	\qmlproperty Qt::WindowFlags QtQuick.Dialogs::Dialog::flags

void	setFlags (Qt::WindowFlags flags)

Qt::WindowModality	modality () const
	\qmlproperty Qt::WindowModality QtQuick.Dialogs::Dialog::modality

void	setModality (Qt::WindowModality modality)

bool	isVisible () const
	\qmlproperty bool QtQuick.Dialogs::Dialog::visible

void	setVisible (bool visible)

int	result () const
	\qmlproperty int QtQuick.Dialogs::Dialog::result

void	setResult (int result)

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< QString >	bindableObjectName ()

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).

QThread *	thread () 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 >
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 >
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 QObjectList &	children () 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< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () 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 QQmlParserStatus
	QQmlParserStatus ()

virtual	~QQmlParserStatus ()

Protected Member Functions
void	onCreate (QPlatformDialogHelper *dialog) override

void	onShow (QPlatformDialogHelper *dialog) override

int	dialogCode () const override

Protected Member Functions inherited from QQuickAbstractDialog
void	classBegin () override
	Invoked after class creation, but before any properties have been set.

void	componentComplete () override
	Invoked after the root component that caused this instantiation has completed construction.

bool	create ()

void	destroy ()

virtual bool	useNativeDialog () const

virtual void	onHide (QPlatformDialogHelper *dialog)

QQuickItem *	findParentItem () const

QWindow *	windowForOpen () const

void	deferredOpen (QWindow *window)

Protected Member Functions inherited from QObject
QObject *	sender () 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)

Properties
QString	text

QString	informativeText

QString	detailedText

QPlatformDialogHelper::StandardButtons	buttons

Properties inherited from QQuickAbstractDialog
QQmlListProperty< QObject >	data
	\qmldefault \qmlproperty list<QtObject> QtQuick.Dialogs::Dialog::data

QWindow *	parentWindow

QString	title

Qt::WindowFlags	flags

Qt::WindowModality	modality

bool	visible

int	result

Properties inherited from QObject
QString	objectName
	the name of this object

Additional Inherited Members
Public Types inherited from QQuickAbstractDialog
enum	StandardCode { Rejected , Accepted }

Public Slots inherited from QQuickAbstractDialog
void	open ()
	\qmlmethod void QtQuick.Dialogs::Dialog::open()

void	close ()
	\qmlmethod void QtQuick.Dialogs::Dialog::close()

virtual void	accept ()
	\qmlmethod void QtQuick.Dialogs::Dialog::accept()

virtual void	reject ()
	\qmlmethod void QtQuick.Dialogs::Dialog::reject()

virtual void	done (int result)
	\qmlmethod void QtQuick.Dialogs::Dialog::done(int result)

Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

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)

Protected Attributes inherited from QQuickAbstractDialog
int	m_result = Rejected

QWindow *	m_parentWindow = nullptr

QString	m_title

Qt::WindowFlags	m_flags = Qt::Dialog

Qt::WindowModality	m_modality = Qt::WindowModal

QQuickDialogType	m_type = QQuickDialogType::FileDialog

QList< QObject * >	m_data

std::unique_ptr< QPlatformDialogHelper >	m_handle

bool	m_visibleRequested = false

bool	m_visible = false

bool	m_complete = false

bool	m_parentWindowExplicitlySet = false

bool	m_firstShow = true

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 22 of file qquickmessagedialog_p.h.

Constructor & Destructor Documentation

◆ QQuickMessageDialog()

QT_BEGIN_NAMESPACE QQuickMessageDialog::QQuickMessageDialog ( QObject * parent = nullptr )

explicit

A message dialog.

\qmltype MessageDialog
\inherits Dialog

! \instantiates QQuickMessageDialog \inqmlmodule QtQuick.Dialogs

Since: 6.3

The MessageDialog type provides a QML API for message dialogs.

A message dialog is used to inform the user, or ask the user a question. A message dialog displays a primary \l text to alert the user to a situation, an \l {informativeText}{informative text} to further explain the alert or to ask the user a question, and an optional \l {detailedText}{detailed text} to provide even more data if the user requests it. A message box can also display a configurable set of \l buttons for accepting a user response.

To show a message dialog, construct an instance of MessageDialog, set the desired properties, and call \l {Dialog::}{open()}.

MessageDialog {
    buttons: MessageDialog.Ok
    text: "The document has been modified."
}

The user must click the \uicontrol OK button to dismiss the message dialog.

A more elaborate approach than just alerting the user to an event is to also ask the user what to do about it. Store the question in the \l {informativeText}{informative text} property, and specify the \l buttons property to the set of buttons you want as the set of user responses. The buttons are specified by combining values using the bitwise OR operator.

MessageDialog {
    text: "The document has been modified."
    informativeText: "Do you want to save your changes?"
    buttons: MessageDialog.Ok | MessageDialog.Cancel
 
    onAccepted: document.save()
}

\section2 Availability

A native platform message dialog is currently available on the following platforms:

\list
\li Android
\li iOS
\li macOS
\endlist

\include includes/fallback.qdocinc

\qmlsignal QtQuick.Dialogs::MessageDialog::buttonClicked(QPlatformDialogHelper::StandardButton button, QPlatformDialogHelper::ButtonRole role)

This signal is emitted when a button with the specified role is clicked.

By giving this signal a handler, you can respond to any custom button being pressed. The button argument tells which button was clicked, while the role argument tells the functional role of that button.

MessageDialog {
    id: dialog
    text: qsTr("The document has been modified.")
    informativeText: qsTr("Do you want to save your changes?")
    buttons: MessageDialog.Ok | MessageDialog.Cancel
    onButtonClicked: function (button, role) {
        switch (button) {
        case MessageDialog.Ok:
            document.save()
            break;
        }
    }
}

See also: buttons

Definition at line 99 of file qquickmessagedialog.cpp.

Member Function Documentation

◆ buttonClicked

void QQuickMessageDialog::buttonClicked	(	QPlatformDialogHelper::StandardButton	button,
		QPlatformDialogHelper::ButtonRole	role )

signal

◆ buttons()

QPlatformDialogHelper::StandardButtons QQuickMessageDialog::buttons ( ) const

\qmlproperty flags QtQuick.Dialogs::MessageDialog::buttons

This property holds a combination of buttons that are used by the message dialog. The default value is MessageDialog.NoButton.

Possible flags: \value MessageDialog.Ok An "OK" button defined with the AcceptRole. \value MessageDialog.Open An "Open" button defined with the AcceptRole. \value MessageDialog.Save A "Save" button defined with the AcceptRole. \value MessageDialog.Cancel A "Cancel" button defined with the RejectRole. \value MessageDialog.Close A "Close" button defined with the RejectRole. \value MessageDialog.Discard A "Discard" or "Don't Save" button, depending on the platform, defined with the DestructiveRole. \value MessageDialog.Apply An "Apply" button defined with the ApplyRole. \value MessageDialog.Reset A "Reset" button defined with the ResetRole. \value MessageDialog.RestoreDefaults A "Restore Defaults" button defined with the ResetRole. \value MessageDialog.Help A "Help" button defined with the HelpRole. \value MessageDialog.SaveAll A "Save All" button defined with the AcceptRole. \value MessageDialog.Yes A "Yes" button defined with the YesRole. \value MessageDialog.YesToAll A "Yes to All" button defined with the YesRole. \value MessageDialog.No A "No" button defined with the NoRole. \value MessageDialog.NoToAll A "No to All" button defined with the NoRole. \value MessageDialog.Abort An "Abort" button defined with the RejectRole. \value MessageDialog.Retry A "Retry" button defined with the AcceptRole. \value MessageDialog.Ignore An "Ignore" button defined with the AcceptRole. \value MessageDialog.NoButton The dialog has no buttons.

See also: buttonClicked()

Definition at line 203 of file qquickmessagedialog.cpp.

References QMessageDialogOptions::standardButtons().

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◆ buttonsChanged

void QQuickMessageDialog::buttonsChanged ( )

signal

Referenced by setButtons().

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◆ detailedText()

QString QQuickMessageDialog::detailedText ( ) const

\qmlproperty string QtQuick.Dialogs::MessageDialog::detailedText

This property holds the text to be displayed in the details area.

See also: text, informativeText

Definition at line 158 of file qquickmessagedialog.cpp.

References QMessageDialogOptions::detailedText().

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◆ detailedTextChanged

void QQuickMessageDialog::detailedTextChanged ( )

signal

Referenced by setDetailedText().

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◆ dialogCode()

int QQuickMessageDialog::dialogCode ( ) const

overrideprotectedvirtual

Reimplemented from QQuickAbstractDialog.

Definition at line 245 of file qquickmessagedialog.cpp.

References QQuickAbstractDialog::Accepted, QPlatformDialogHelper::AcceptRole, QQuickAbstractDialog::dialogCode(), QPlatformDialogHelper::NoRole, QQuickAbstractDialog::Rejected, QPlatformDialogHelper::RejectRole, and QPlatformDialogHelper::YesRole.

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◆ informativeText()

QString QQuickMessageDialog::informativeText ( ) const

\qmlproperty string QtQuick.Dialogs::MessageDialog::informativeText

This property holds the informative text that provides a fuller description for the message.

Informative text can be used to expand upon the \l text to give more information to the user.

See also: text, detailedText

Definition at line 136 of file qquickmessagedialog.cpp.

References QMessageDialogOptions::informativeText().

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◆ informativeTextChanged

void QQuickMessageDialog::informativeTextChanged ( )

signal

Referenced by setInformativeText().

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◆ onCreate()

void QQuickMessageDialog::onCreate ( QPlatformDialogHelper * dialog )

overrideprotectedvirtual

Called at the end of \l create().

Reimplemented from QQuickAbstractDialog.

Definition at line 226 of file qquickmessagedialog.cpp.

References QPlatformMessageDialogHelper::clicked(), QObject::connect(), and dialog.

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◆ onShow()

void QQuickMessageDialog::onShow ( QPlatformDialogHelper * dialog )

overrideprotectedvirtual

Called by \l open(), after the call to \l create() and before the handle/helper's show function is called.

Reimplemented from QQuickAbstractDialog.

Definition at line 236 of file qquickmessagedialog.cpp.

References dialog, QMessageDialogOptions::setWindowTitle(), and QQuickAbstractDialog::title.

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◆ setButtons()

void QQuickMessageDialog::setButtons ( QPlatformDialogHelper::StandardButtons buttons )

Definition at line 208 of file qquickmessagedialog.cpp.

References buttons, buttonsChanged(), emit, QMessageDialogOptions::setStandardButtons(), and QMessageDialogOptions::standardButtons().

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◆ setDetailedText()

void QQuickMessageDialog::setDetailedText ( const QString & text )

Definition at line 163 of file qquickmessagedialog.cpp.

References QMessageDialogOptions::detailedText(), detailedTextChanged(), emit, QMessageDialogOptions::setDetailedText(), and text.

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◆ setInformativeText()

void QQuickMessageDialog::setInformativeText ( const QString & text )

Definition at line 141 of file qquickmessagedialog.cpp.

References emit, QMessageDialogOptions::informativeText(), informativeTextChanged(), QMessageDialogOptions::setInformativeText(), and text.

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◆ setText()

void QQuickMessageDialog::setText ( const QString & text )

Definition at line 117 of file qquickmessagedialog.cpp.

References emit, QMessageDialogOptions::setText(), QMessageDialogOptions::text(), text, and textChanged().

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◆ text()

QString QQuickMessageDialog::text ( ) const

\qmlproperty string QtQuick.Dialogs::MessageDialog::text

This property holds the text to be displayed on the message dialog.

See also: informativeText, detailedText

Definition at line 112 of file qquickmessagedialog.cpp.

References QMessageDialogOptions::text().

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◆ textChanged

void QQuickMessageDialog::textChanged ( )

signal

Referenced by setText().

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Property Documentation

◆ buttons

QPlatformDialogHelper::StandardButtons QQuickMessageDialog::buttons

readwrite

Definition at line 30 of file qquickmessagedialog_p.h.

Referenced by setButtons().

◆ detailedText

QString QQuickMessageDialog::detailedText

readwrite

Definition at line 29 of file qquickmessagedialog_p.h.

◆ informativeText

QString QQuickMessageDialog::informativeText

readwrite

Definition at line 28 of file qquickmessagedialog_p.h.

◆ text

QString QQuickMessageDialog::text

readwrite

Definition at line 27 of file qquickmessagedialog_p.h.

Referenced by setDetailedText(), setInformativeText(), and setText().

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

qtdeclarative/src/quickdialogs/quickdialogs/qquickmessagedialog_p.h (e47f3f73bb92bcebcc2cb936b5e03e859c91e430)
qtdeclarative/src/quickdialogs/quickdialogs/qquickmessagedialog.cpp (8dd68783642e6ea42e9a7b32e1671424d1d0eeed)

Signals

Public Member Functions

Protected Member Functions

Properties

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QQuickMessageDialog()

Member Function Documentation

◆ buttonClicked

◆ buttons()

◆ buttonsChanged

◆ detailedText()

◆ detailedTextChanged

◆ dialogCode()

◆ informativeText()

◆ informativeTextChanged

◆ onCreate()

◆ onShow()

◆ setButtons()

◆ setDetailedText()

◆ setInformativeText()

◆ setText()

◆ text()

◆ textChanged

Property Documentation

◆ buttons

◆ detailedText

◆ informativeText

◆ text