The QPushButton widget provides a command button. More...

#include <qpushbutton.h>

Inheritance diagram for QPushButton:

Collaboration diagram for QPushButton:

Public Member Functions
	QPushButton (QWidget *parent=nullptr)

	QPushButton (const QString &text, QWidget *parent=nullptr)

	QPushButton (const QIcon &icon, const QString &text, QWidget *parent=nullptr)

	~QPushButton ()

QSize	sizeHint () const override

QSize	minimumSizeHint () const override

bool	autoDefault () const

void	setAutoDefault (bool)

bool	isDefault () const

void	setDefault (bool)

void	setFlat (bool)

bool	isFlat () const

Public Member Functions inherited from QAbstractButton
	QAbstractButton (QWidget *parent=nullptr)

	~QAbstractButton ()

void	setText (const QString &text)

QString	text () const

void	setIcon (const QIcon &icon)

QIcon	icon () const

QSize	iconSize () const

void	setShortcut (const QKeySequence &key)

QKeySequence	shortcut () const

void	setCheckable (bool)

bool	isCheckable () const

bool	isChecked () const

void	setDown (bool)

bool	isDown () const

void	setAutoRepeat (bool)

bool	autoRepeat () const

void	setAutoRepeatDelay (int)

int	autoRepeatDelay () const

void	setAutoRepeatInterval (int)

int	autoRepeatInterval () const

void	setAutoExclusive (bool)

bool	autoExclusive () const

Public Member Functions inherited from QWidget
	QWidget (QWidget *parent=nullptr, Qt::WindowFlags f=Qt::WindowFlags())

	~QWidget ()

int	devType () const override

WId	winId () const

void	createWinId ()

WId	internalWinId () const

WId	effectiveWinId () const

QStyle *	style () const

void	setStyle (QStyle *)

bool	isWindow () const

bool	isModal () const

Qt::WindowModality	windowModality () const

void	setWindowModality (Qt::WindowModality windowModality)

bool	isEnabled () const

bool	isEnabledTo (const QWidget *) const

QRect	frameGeometry () const

const QRect &	geometry () const

QRect	normalGeometry () const

int	x () const

int	y () const

QPoint	pos () const

QSize	frameSize () const

QSize	size () const

int	width () const

int	height () const

QRect	rect () const

QRect	childrenRect () const

QRegion	childrenRegion () const

QSize	minimumSize () const

QSize	maximumSize () const

int	minimumWidth () const

int	minimumHeight () const

int	maximumWidth () const

int	maximumHeight () const

void	setMinimumSize (const QSize &)

void	setMinimumSize (int minw, int minh)

void	setMaximumSize (const QSize &)

void	setMaximumSize (int maxw, int maxh)

void	setMinimumWidth (int minw)

void	setMinimumHeight (int minh)

void	setMaximumWidth (int maxw)

void	setMaximumHeight (int maxh)

QSize	sizeIncrement () const

void	setSizeIncrement (const QSize &)

void	setSizeIncrement (int w, int h)

QSize	baseSize () const

void	setBaseSize (const QSize &)

void	setBaseSize (int basew, int baseh)

void	setFixedSize (const QSize &)

void	setFixedSize (int w, int h)

void	setFixedWidth (int w)

void	setFixedHeight (int h)

QPointF	mapToGlobal (const QPointF &) const

QPoint	mapToGlobal (const QPoint &) const

QPointF	mapFromGlobal (const QPointF &) const

QPoint	mapFromGlobal (const QPoint &) const

QPointF	mapToParent (const QPointF &) const

QPoint	mapToParent (const QPoint &) const

QPointF	mapFromParent (const QPointF &) const

QPoint	mapFromParent (const QPoint &) const

QPointF	mapTo (const QWidget *, const QPointF &) const

QPoint	mapTo (const QWidget *, const QPoint &) const

QPointF	mapFrom (const QWidget *, const QPointF &) const

QPoint	mapFrom (const QWidget *, const QPoint &) const

QWidget *	window () const

QWidget *	nativeParentWidget () const

QWidget *	topLevelWidget () const

const QPalette &	palette () const

void	setPalette (const QPalette &)

void	setBackgroundRole (QPalette::ColorRole)

QPalette::ColorRole	backgroundRole () const

void	setForegroundRole (QPalette::ColorRole)

QPalette::ColorRole	foregroundRole () const

const QFont &	font () const

void	setFont (const QFont &)

QFontMetrics	fontMetrics () const

QFontInfo	fontInfo () const

QCursor	cursor () const

void	setCursor (const QCursor &)

void	unsetCursor ()

void	setMouseTracking (bool enable)

bool	hasMouseTracking () const

bool	underMouse () const

void	setTabletTracking (bool enable)

bool	hasTabletTracking () const

void	setMask (const QBitmap &)

void	setMask (const QRegion &)

QRegion	mask () const

void	clearMask ()

void	render (QPaintDevice *target, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground\|DrawChildren))

void	render (QPainter *painter, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground\|DrawChildren))

Q_INVOKABLE QPixmap	grab (const QRect &rectangle=QRect(QPoint(0, 0), QSize(-1, -1)))

void	grabGesture (Qt::GestureType type, Qt::GestureFlags flags=Qt::GestureFlags())

void	ungrabGesture (Qt::GestureType type)

QString	styleSheet () const

QString	windowTitle () const

void	setWindowIcon (const QIcon &icon)

QIcon	windowIcon () const

void	setWindowIconText (const QString &)

QString	windowIconText () const

void	setWindowRole (const QString &)

QString	windowRole () const

void	setWindowFilePath (const QString &filePath)

QString	windowFilePath () const

void	setWindowOpacity (qreal level)

qreal	windowOpacity () const

bool	isWindowModified () const

QString	accessibleName () const

void	setAccessibleName (const QString &name)

QString	accessibleDescription () const

void	setAccessibleDescription (const QString &description)

void	setLayoutDirection (Qt::LayoutDirection direction)

Qt::LayoutDirection	layoutDirection () const

void	unsetLayoutDirection ()

void	setLocale (const QLocale &locale)

QLocale	locale () const

void	unsetLocale ()

bool	isRightToLeft () const

bool	isLeftToRight () const

bool	isActiveWindow () const

void	activateWindow ()

void	clearFocus ()

void	setFocus (Qt::FocusReason reason)

Qt::FocusPolicy	focusPolicy () const

void	setFocusPolicy (Qt::FocusPolicy policy)

bool	hasFocus () const

void	setFocusProxy (QWidget *)

QWidget *	focusProxy () const

Qt::ContextMenuPolicy	contextMenuPolicy () const

void	setContextMenuPolicy (Qt::ContextMenuPolicy policy)

void	grabMouse ()

void	grabMouse (const QCursor &)

void	releaseMouse ()

void	grabKeyboard ()

void	releaseKeyboard ()

int	grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut)

void	releaseShortcut (int id)

void	setShortcutEnabled (int id, bool enable=true)

void	setShortcutAutoRepeat (int id, bool enable=true)

bool	updatesEnabled () const

void	setUpdatesEnabled (bool enable)

void	update (int x, int y, int w, int h)

void	update (const QRect &)

void	update (const QRegion &)

void	repaint (int x, int y, int w, int h)

void	repaint (const QRect &)

void	repaint (const QRegion &)

void	stackUnder (QWidget *)

void	move (int x, int y)

void	move (const QPoint &)

void	resize (int w, int h)

void	resize (const QSize &)

void	setGeometry (int x, int y, int w, int h)

void	setGeometry (const QRect &)

QByteArray	saveGeometry () const

bool	restoreGeometry (const QByteArray &geometry)

void	adjustSize ()

bool	isVisible () const

bool	isVisibleTo (const QWidget *) const

bool	isHidden () const

bool	isMinimized () const

bool	isMaximized () const

bool	isFullScreen () const

Qt::WindowStates	windowState () const

void	setWindowState (Qt::WindowStates state)

void	overrideWindowState (Qt::WindowStates state)

QSizePolicy	sizePolicy () const

void	setSizePolicy (QSizePolicy)

void	setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical)

virtual int	heightForWidth (int) const

virtual bool	hasHeightForWidth () const

QRegion	visibleRegion () const

void	setContentsMargins (int left, int top, int right, int bottom)

void	setContentsMargins (const QMargins &margins)
	The setContentsMargins function sets the margins around the widget's contents. More...

QMargins	contentsMargins () const
	The contentsMargins function returns the widget's contents margins. More...

QRect	contentsRect () const

QLayout *	layout () const

void	setLayout (QLayout *)

void	updateGeometry ()

void	setParent (QWidget *parent)

void	setParent (QWidget *parent, Qt::WindowFlags f)

void	scroll (int dx, int dy)

void	scroll (int dx, int dy, const QRect &)

QWidget *	focusWidget () const

QWidget *	nextInFocusChain () const

QWidget *	previousInFocusChain () const
	The previousInFocusChain function returns the previous widget in this widget's focus chain. More...

bool	acceptDrops () const

void	setAcceptDrops (bool on)

void	addAction (QAction *action)

void	addActions (const QList< QAction * > &actions)

void	insertActions (QAction before, const QList< QAction > &actions)

void	insertAction (QAction before, QAction action)

void	removeAction (QAction *action)

QList< QAction * >	actions () const

QAction *	addAction (const QString &text)

QAction *	addAction (const QIcon &icon, const QString &text)

QAction *	addAction (const QString &text, const QObject receiver, const char member, Qt::ConnectionType type=Qt::AutoConnection)

QAction *	addAction (const QIcon &icon, const QString &text, const QObject receiver, const char member, Qt::ConnectionType type=Qt::AutoConnection)

template<typename... Args, typename = compatible_action_slot_args<Args...>>
QAction *	addAction (const QString &text, Args &&...args)

template<typename... Args, typename = compatible_action_slot_args<Args...>>
QAction *	addAction (const QIcon &icon, const QString &text, Args &&...args)

QWidget *	parentWidget () const

void	setWindowFlags (Qt::WindowFlags type)

Qt::WindowFlags	windowFlags () const

void	setWindowFlag (Qt::WindowType, bool on=true)

void	overrideWindowFlags (Qt::WindowFlags type)

Qt::WindowType	windowType () const

QWidget *	childAt (int x, int y) const

QWidget *	childAt (const QPoint &p) const

void	setAttribute (Qt::WidgetAttribute, bool on=true)

bool	testAttribute (Qt::WidgetAttribute) const

QPaintEngine *	paintEngine () const override

void	ensurePolished () const

bool	isAncestorOf (const QWidget *child) const

bool	autoFillBackground () const

void	setAutoFillBackground (bool enabled)

QBackingStore *	backingStore () const

QWindow *	windowHandle () const

QScreen *	screen () const

void	setScreen (QScreen *)

virtual QVariant	inputMethodQuery (Qt::InputMethodQuery) const

Qt::InputMethodHints	inputMethodHints () const

void	setInputMethodHints (Qt::InputMethodHints hints)

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)

virtual	~QObject ()

virtual bool	eventFilter (QObject watched, QEvent event)

QString	objectName () const

void	setObjectName (const QString &name)

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const

bool	isWindowType () const

bool	signalsBlocked () const noexcept

bool	blockSignals (bool b) noexcept

QThread *	thread () const

void	moveToThread (QThread *thread)

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)

template<typename T >
T	findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

template<typename T >
QList< T >	findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

const QObjectList &	children () const

void	setParent (QObject *parent)

void	installEventFilter (QObject *filterObj)

void	removeEventFilter (QObject *obj)

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

void	dumpObjectInfo () const

bool	setProperty (const char *name, const QVariant &value)

QVariant	property (const char *name) const

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const

bool	inherits (const char *classname) const

Public Member Functions inherited from QPaintDevice
virtual	~QPaintDevice ()

bool	paintingActive () const

int	width () const

int	height () const

int	widthMM () const

int	heightMM () const

int	logicalDpiX () const

int	logicalDpiY () const

int	physicalDpiX () const

int	physicalDpiY () const

qreal	devicePixelRatio () const

qreal	devicePixelRatioF () const

int	colorCount () const

int	depth () const

Protected Member Functions
bool	event (QEvent *e) override

void	paintEvent (QPaintEvent *) override

void	keyPressEvent (QKeyEvent *) override

void	focusInEvent (QFocusEvent *) override

void	focusOutEvent (QFocusEvent *) override

void	mouseMoveEvent (QMouseEvent *) override

virtual void	initStyleOption (QStyleOptionButton *option) const

bool	hitButton (const QPoint &pos) const override

	QPushButton (QPushButtonPrivate &dd, QWidget *parent=nullptr)

Protected Member Functions inherited from QAbstractButton
virtual void	checkStateSet ()

virtual void	nextCheckState ()

void	keyReleaseEvent (QKeyEvent *e) override

void	mousePressEvent (QMouseEvent *e) override

void	mouseReleaseEvent (QMouseEvent *e) override

void	changeEvent (QEvent *e) override

void	timerEvent (QTimerEvent *e) override

	QAbstractButton (QAbstractButtonPrivate &dd, QWidget *parent=nullptr)

Protected Member Functions inherited from QWidget
virtual void	mouseDoubleClickEvent (QMouseEvent *event)

virtual void	enterEvent (QEnterEvent *event)

virtual void	leaveEvent (QEvent *event)

virtual void	moveEvent (QMoveEvent *event)

virtual void	resizeEvent (QResizeEvent *event)

virtual void	closeEvent (QCloseEvent *event)

virtual void	contextMenuEvent (QContextMenuEvent *event)

virtual void	actionEvent (QActionEvent *event)

virtual void	showEvent (QShowEvent *event)

virtual void	hideEvent (QHideEvent *event)

virtual bool	nativeEvent (const QByteArray &eventType, void message, qintptr result)

int	metric (PaintDeviceMetric) const override

void	initPainter (QPainter *painter) const override

QPaintDevice *	redirected (QPoint *offset) const override

QPainter *	sharedPainter () const override

virtual void	inputMethodEvent (QInputMethodEvent *)

void	create (WId=0, bool initializeWindow=true, bool destroyOldWindow=true)

void	destroy (bool destroyWindow=true, bool destroySubWindows=true)

virtual bool	focusNextPrevChild (bool next)

bool	focusNextChild ()

bool	focusPreviousChild ()

	QWidget (QWidgetPrivate &d, QWidget *parent, Qt::WindowFlags f)

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

int	senderSignalIndex () const

int	receivers (const char *signal) const

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	childEvent (QChildEvent *event)

virtual void	customEvent (QEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Protected Member Functions inherited from QPaintDevice
	QPaintDevice () noexcept

Properties
bool	autoDefault
	whether the push button is an auto default button More...

bool	default
	whether the push button is the default button More...

bool	flat
	whether the button border is raised More...

Properties inherited from QAbstractButton
QString	text
	the text shown on the button More...

QIcon	icon
	the icon shown on the button More...

QSize	iconSize
	the icon size used for this button. More...

QKeySequence	shortcut
	the mnemonic associated with the button More...

bool	checkable
	whether the button is checkable More...

bool	checked
	whether the button is checked More...

bool	autoRepeat
	whether autoRepeat is enabled More...

bool	autoExclusive
	whether auto-exclusivity is enabled More...

int	autoRepeatDelay
	the initial delay of auto-repetition More...

int	autoRepeatInterval
	the interval of auto-repetition More...

bool	down
	whether the button is pressed down More...

Properties inherited from QWidget
bool	modal
	whether the widget is a modal widget More...

Qt::WindowModality	windowModality
	which windows are blocked by the modal widget More...

bool	enabled
	whether the widget is enabled More...

QRect	geometry
	the geometry of the widget relative to its parent and excluding the window frame More...

QRect	frameGeometry
	geometry of the widget relative to its parent including any window frame More...

QRect	normalGeometry
	the geometry of the widget as it will appear when shown as a normal (not maximized or full screen) top-level widget More...

int	x
	the x coordinate of the widget relative to its parent including any window frame More...

int	y
	the y coordinate of the widget relative to its parent and including any window frame More...

QPoint	pos
	the position of the widget within its parent widget More...

QSize	frameSize
	the size of the widget including any window frame More...

QSize	size
	the size of the widget excluding any window frame More...

int	width
	the width of the widget excluding any window frame More...

int	height
	the height of the widget excluding any window frame More...

QRect	rect
	the internal geometry of the widget excluding any window frame More...

QRect	childrenRect
	the bounding rectangle of the widget's children More...

QRegion	childrenRegion
	the combined region occupied by the widget's children More...

QSizePolicy	sizePolicy
	the default layout behavior of the widget More...

QSize	minimumSize
	the widget's minimum size More...

QSize	maximumSize
	the widget's maximum size in pixels More...

int	minimumWidth
	the widget's minimum width in pixels More...

int	minimumHeight
	the widget's minimum height in pixels More...

int	maximumWidth
	the widget's maximum width in pixels More...

int	maximumHeight
	the widget's maximum height in pixels More...

QSize	sizeIncrement
	the size increment of the widget More...

QSize	baseSize
	the base size of the widget More...

QPalette	palette
	the widget's palette More...

QFont	font
	the font currently set for the widget More...

QCursor	cursor
	the cursor shape for this widget More...

bool	mouseTracking
	whether mouse tracking is enabled for the widget More...

bool	tabletTracking
	whether tablet tracking is enabled for the widget More...

bool	isActiveWindow
	whether this widget's window is the active window More...

Qt::FocusPolicy	focusPolicy
	the way the widget accepts keyboard focus More...

bool	focus
	whether this widget (or its focus proxy) has the keyboard input focus More...

Qt::ContextMenuPolicy	contextMenuPolicy
	how the widget shows a context menu More...

bool	updatesEnabled
	whether updates are enabled More...

bool	visible
	whether the widget is visible More...

bool	minimized
	whether this widget is minimized (iconified) More...

bool	maximized
	whether this widget is maximized More...

bool	fullScreen
	whether the widget is shown in full screen mode More...

QSize	sizeHint
	the recommended size for the widget More...

QSize	minimumSizeHint
	the recommended minimum size for the widget More...

bool	acceptDrops
	whether drop events are enabled for this widget More...

QString	windowTitle
	the window title (caption) More...

QIcon	windowIcon
	the widget's icon More...

QString	windowIconText
	the text to be displayed on the icon of a minimized window More...

double	windowOpacity
	The level of opacity for the window. More...

bool	windowModified
	whether the document shown in the window has unsaved changes More...

QString	accessibleName
	the widget's name as seen by assistive technologies More...

QString	accessibleDescription
	the widget's description as seen by assistive technologies More...

Qt::LayoutDirection	layoutDirection
	the layout direction for this widget. More...

bool	autoFillBackground
	whether the widget background is filled automatically More...

QString	styleSheet
	the widget's style sheet More...

QLocale	locale
	the widget's locale More...

QString	windowFilePath
	the file path associated with a widget More...

Qt::InputMethodHints	inputMethodHints
	What input method specific hints the widget has. More...

Properties inherited from QObject
QString	objectName
	the name of this object More...

Additional Inherited Members
Public Types inherited from QWidget
enum	RenderFlag { DrawWindowBackground = 0x1 , DrawChildren = 0x2 , IgnoreMask = 0x4 }

Public Types inherited from QPaintDevice
enum	PaintDeviceMetric { PdmWidth = 1 , PdmHeight , PdmWidthMM , PdmHeightMM , PdmNumColors , PdmDepth , PdmDpiX , PdmDpiY , PdmPhysicalDpiX , PdmPhysicalDpiY , PdmDevicePixelRatio , PdmDevicePixelRatioScaled }

Public Slots inherited from QAbstractButton
void	setIconSize (const QSize &size)

void	animateClick ()

void	click ()

void	toggle ()

void	setChecked (bool)

Public Slots inherited from QWidget
void	setEnabled (bool)

void	setDisabled (bool)

void	setWindowModified (bool)

void	setWindowTitle (const QString &)

void	setStyleSheet (const QString &styleSheet)

void	setFocus ()

void	update ()

void	repaint ()

virtual void	setVisible (bool visible)

void	setHidden (bool hidden)

void	show ()

void	hide ()

void	showMinimized ()

void	showMaximized ()

void	showFullScreen ()

void	showNormal ()

bool	close ()

void	raise ()

void	lower ()

Public Slots inherited from QObject
void	deleteLater ()

Signals inherited from QAbstractButton
void	pressed ()

void	released ()

void	clicked (bool checked=false)

void	toggled (bool checked)

Signals inherited from QWidget
void	windowTitleChanged (const QString &title)

void	windowIconChanged (const QIcon &icon)

void	windowIconTextChanged (const QString &iconText)

void	customContextMenuRequested (const QPoint &pos)

Signals inherited from QObject
void	destroyed (QObject *=nullptr)

void	objectNameChanged (const QString &objectName, QPrivateSignal)

Static Public Member Functions inherited from QWidget
static void	setTabOrder (QWidget , QWidget )

static QWidget *	mouseGrabber ()

static QWidget *	keyboardGrabber ()

static QWidget *	find (WId)

static QWidget *	createWindowContainer (QWindow window, QWidget parent=nullptr, Qt::WindowFlags flags=Qt::WindowFlags())

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)

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::FunctionPointer< Func2 >::Object receiver, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

static QMetaObject::Connection ::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot)

static QMetaObject::Connection ::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot)

template<typename Func1 , typename Func2 >
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::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 QPaintDevice
static qreal	devicePixelRatioFScale ()

Protected Slots inherited from QWidget
void	updateMicroFocus (Qt::InputMethodQuery query=Qt::ImQueryAll)

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Protected Attributes inherited from QPaintDevice
ushort	painters

Related Functions inherited from QWidget
	setupUi (QWidget *widget)

Related Functions inherited from QObject
template< class T > T	qobject_cast (const QObject *object)

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

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

	QObjectList

Detailed Description

The QPushButton widget provides a command button.

\inmodule QtWidgets

The push button, or command button, is perhaps the most commonly used widget in any graphical user interface. Push (click) a button to command the computer to perform some action, or to answer a question. Typical buttons are OK, Apply, Cancel, Close, Yes, No and Help.

A command button is rectangular and typically displays a text label describing its action. A shortcut key can be specified by preceding the preferred character with an ampersand in the text. For example:

In this example the shortcut is {Alt+D}. See the \l {QShortcut::mnemonic}{QShortcut} documentation for details (to display an actual ampersand, use '&&').

Push buttons display a textual label, and optionally a small icon. These can be set using the constructors and changed later using setText() and setIcon(). If the button is disabled, the appearance of the text and icon will be manipulated with respect to the GUI style to make the button look "disabled".

A push button emits the signal clicked() when it is activated by the mouse, the Spacebar or by a keyboard shortcut. Connect to this signal to perform the button's action. Push buttons also provide less commonly used signals, for example pressed() and released().

Command buttons in dialogs are by default auto-default buttons, i.e., they become the default push button automatically when they receive the keyboard input focus. A default button is a push button that is activated when the user presses the Enter or Return key in a dialog. You can change this with setAutoDefault(). Note that auto-default buttons reserve a little extra space which is necessary to draw a default-button indicator. If you do not want this space around your buttons, call setAutoDefault(false).

Being so central, the button widget has grown to accommodate a great many variations in the past decade. The Microsoft style guide now shows about ten different states of Windows push buttons and the text implies that there are dozens more when all the combinations of features are taken into consideration.

The most important modes or states are: \list

Available or not (grayed out, disabled).
Standard push button, toggling push button or menu button.
On or off (only for toggling push buttons).
Default or normal. The default button in a dialog can generally be "clicked" using the Enter or Return key.
Auto-repeat or not.
Pressed down or not. \endlist

As a general rule, use a push button when the application or dialog window performs an action when the user clicks on it (such as Apply, Cancel, Close and Help) and when the widget is supposed to have a wide, rectangular shape with a text label. Small, typically square buttons that change the state of the window rather than performing an action (such as the buttons in the top-right corner of the QFileDialog) are not command buttons, but tool buttons. Qt provides a special class (QToolButton) for these buttons.

If you need toggle behavior (see setCheckable()) or a button that auto-repeats the activation signal when being pushed down like the arrows in a scroll bar (see setAutoRepeat()), a command button is probably not what you want. When in doubt, use a tool button.

Note: On \macos when a push button's width becomes smaller than 50 or its height becomes smaller than 30, the button's corners are changed from round to square. Use the setMinimumSize() function to prevent this behavior.

A variation of a command button is a menu button. These provide not just one command, but several, since when they are clicked they pop up a menu of options. Use the method setMenu() to associate a popup menu with a push button.

Other classes of buttons are option buttons (see QRadioButton) and check boxes (see QCheckBox).

In Qt, the QAbstractButton base class provides most of the modes and other API, and QPushButton provides GUI logic. See QAbstractButton for more information about the API.

See also: QToolButton, QRadioButton, QCheckBox

Definition at line 55 of file qpushbutton.h.

Constructor & Destructor Documentation

◆ QPushButton() [1/4]

QPushButton::QPushButton ( QWidget * parent = nullptr )

explicit

Constructs a push button with no text and a parent.

Definition at line 239 of file qpushbutton.cpp.

◆ QPushButton() [2/4]

QPushButton::QPushButton	(	const QString &	text,
		QWidget *	parent = `nullptr`
	)

explicit

Constructs a push button with the parent parent and the text text.

Definition at line 251 of file qpushbutton.cpp.

Here is the call graph for this function:

◆ QPushButton() [3/4]

QPushButton::QPushButton	(	const QIcon &	icon,
		const QString &	text,
		QWidget *	parent = `nullptr`
	)

Constructs a push button with an icon and a text, and a parent.

Note that you can also pass a QPixmap object as an icon (thanks to the implicit type conversion provided by C++).

Definition at line 265 of file qpushbutton.cpp.

Here is the call graph for this function:

◆ ~QPushButton()

QPushButton::~QPushButton ( )

Destroys the push button.

Definition at line 284 of file qpushbutton.cpp.

◆ QPushButton() [4/4]

QPushButton::QPushButton	(	QPushButtonPrivate &	dd,
		QWidget *	parent = `nullptr`
	)

protected

Definition at line 274 of file qpushbutton.cpp.

Member Function Documentation

◆ autoDefault()

bool QPushButton::autoDefault ( ) const

Definition at line 352 of file qpushbutton.cpp.

◆ event()

bool QPushButton::event ( QEvent * e )

overrideprotectedvirtual

\reimp

Reimplemented from QAbstractButton.

Definition at line 702 of file qpushbutton.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ focusInEvent()

void QPushButton::focusInEvent ( QFocusEvent * e )

overrideprotectedvirtual

\reimp

Reimplemented from QAbstractButton.

Definition at line 474 of file qpushbutton.cpp.

Here is the call graph for this function:

◆ focusOutEvent()

void QPushButton::focusOutEvent ( QFocusEvent * e )

overrideprotectedvirtual

\reimp

Reimplemented from QAbstractButton.

Definition at line 491 of file qpushbutton.cpp.

Here is the call graph for this function:

◆ hitButton()

bool QPushButton::hitButton ( const QPoint & pos ) const

overrideprotectedvirtual

\reimp

Reimplemented from QAbstractButton.

Reimplemented in TestPushButton, TestButton, and TestPushButton.

Definition at line 535 of file qpushbutton.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ initStyleOption()

void QPushButton::initStyleOption ( QStyleOptionButton * option ) const

protectedvirtual

Initialize option with the values from this QPushButton. This method is useful for subclasses when they need a QStyleOptionButton, but don't want to fill in all the information themselves.

See also: QStyleOption::initFrom()

Reimplemented in QCommandLinkButton.

Definition at line 309 of file qpushbutton.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ isDefault()

bool QPushButton::isDefault ( ) const

Definition at line 381 of file qpushbutton.cpp.

Here is the caller graph for this function:

◆ isFlat()

bool QPushButton::isFlat ( ) const

Definition at line 695 of file qpushbutton.cpp.

◆ keyPressEvent()

void QPushButton::keyPressEvent ( QKeyEvent * e )

overrideprotectedvirtual

\reimp

Reimplemented from QAbstractButton.

Definition at line 455 of file qpushbutton.cpp.

Here is the call graph for this function:

◆ minimumSizeHint()

QSize QPushButton::minimumSizeHint ( ) const

overridevirtual

\reimp

Reimplemented from QWidget.

Definition at line 437 of file qpushbutton.cpp.

Here is the call graph for this function:

◆ mouseMoveEvent()

void QPushButton::mouseMoveEvent ( QMouseEvent * e )

overrideprotectedvirtual

\reimp

Reimplemented from QAbstractButton.

Definition at line 514 of file qpushbutton.cpp.

Here is the call graph for this function:

◆ paintEvent()

void QPushButton::paintEvent ( QPaintEvent * )

overrideprotectedvirtual

\reimp

Implements QAbstractButton.

Definition at line 445 of file qpushbutton.cpp.

Here is the call graph for this function:

◆ setAutoDefault()

void QPushButton::setAutoDefault ( bool enable )

Definition at line 340 of file qpushbutton.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ setDefault()

void QPushButton::setDefault ( bool enable )

Definition at line 360 of file qpushbutton.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ setFlat()

void QPushButton::setFlat ( bool flat )

Definition at line 683 of file qpushbutton.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ sizeHint()

QSize QPushButton::sizeHint ( ) const

overridevirtual

\reimp

Reimplemented from QWidget.

Definition at line 390 of file qpushbutton.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

Property Documentation

◆ autoDefault

QPushButton::autoDefault

readwrite

whether the push button is an auto default button

If this property is set to true then the push button is an auto default button.

In some GUI styles a default button is drawn with an extra frame around it, up to 3 pixels or more. Qt automatically keeps this space free around auto-default buttons, i.e., auto-default buttons may have a slightly larger size hint.

This property's default is true for buttons that have a QDialog parent; otherwise it defaults to false.

See the \l default property for details of how \l default and auto-default interact.

Definition at line 111 of file qpushbutton.h.

◆ default

QPushButton::default

readwrite

whether the push button is the default button

Default and autodefault buttons decide what happens when the user presses enter in a dialog.

A button with this property set to true (i.e., the dialog's default button,) will automatically be pressed when the user presses enter, with one exception: if an autoDefault button currently has focus, the autoDefault button is pressed. When the dialog has \l autoDefault buttons but no default button, pressing enter will press either the \l autoDefault button that currently has focus, or if no button has focus, the next \l autoDefault button in the focus chain.

In a dialog, only one push button at a time can be the default button. This button is then displayed with an additional frame (depending on the GUI style).

The default button behavior is provided only in dialogs. Buttons can always be clicked from the keyboard by pressing Spacebar when the button has focus.

If the default property is set to false on the current default button while the dialog is visible, a new default will automatically be assigned the next time a push button in the dialog receives focus.

This property's default is false.

Definition at line 111 of file qpushbutton.h.

◆ flat

QPushButton::flat

readwrite

whether the button border is raised

This property's default is false. If this property is set, most styles will not paint the button background unless the button is being pressed. setAutoFillBackground() can be used to ensure that the background is filled using the QPalette::Button brush.

Definition at line 111 of file qpushbutton.h.

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

src/widgets/widgets/qpushbutton.h
src/widgets/widgets/qpushbutton.cpp

Public Member Functions

Protected Member Functions

Properties

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QPushButton() [1/4]

◆ QPushButton() [2/4]

◆ QPushButton() [3/4]

◆ ~QPushButton()

◆ QPushButton() [4/4]

Member Function Documentation

◆ autoDefault()

◆ event()

◆ focusInEvent()

◆ focusOutEvent()

◆ hitButton()

◆ initStyleOption()

◆ isDefault()

◆ isFlat()

◆ keyPressEvent()

◆ minimumSizeHint()

◆ mouseMoveEvent()

◆ paintEvent()

◆ setAutoDefault()

◆ setDefault()

◆ setFlat()

◆ sizeHint()

Property Documentation

◆ autoDefault

◆ default

◆ flat