Wt  4.0.2
Public Member Functions | Protected Member Functions | List of all members
Wt::WPushButton Class Reference

A widget that represents a push button. More...

#include <Wt/WPushButton.h>

Inheritance diagram for Wt::WPushButton:
Inheritance graph
[legend]

Public Member Functions

 WPushButton ()
 Creates a push button.
 
 WPushButton (const WString &text)
 Creates a push button with given label text. More...
 
 WPushButton (const WString &text, TextFormat textFormat)
 Creates a push button with given label text.
 
void setDefault (bool enabled)
 Sets the default property. More...
 
bool isDefault () const
 Returns whether the button is a default button. More...
 
void setCheckable (bool checkable)
 Sets whether the button is checkable. More...
 
bool isCheckable () const
 Returns whether a button is checkable. More...
 
void setChecked (bool checked)
 Sets the button state. More...
 
void setChecked ()
 Checks the button. More...
 
void setUnChecked ()
 Unchecks the button. More...
 
bool isChecked () const
 Returns the button state. More...
 
bool setText (const WString &text)
 Sets the button text. More...
 
const WStringtext () const
 Returns the button text. More...
 
bool setTextFormat (TextFormat format)
 Sets the text format. More...
 
TextFormat textFormat () const
 Returns the text format. More...
 
void setIcon (const WLink &link)
 Sets an icon. More...
 
WLink icon () const
 Returns the icon. More...
 
void setLink (const WLink &link)
 Sets a destination link. More...
 
const WLinklink () const
 Returns the destination link. More...
 
virtual WString valueText () const override
 Returns the current value. More...
 
virtual void setValueText (const WString &value) override
 Sets the current value. More...
 
void setMenu (std::unique_ptr< WPopupMenu > menu)
 Links a popup menu to the button. More...
 
WPopupMenumenu () const
 Returns an associated popup menu. More...
 
virtual void refresh () override
 Refresh the widget. More...
 
EventSignalchecked ()
 Signal emitted when the button gets checked. More...
 
EventSignalunChecked ()
 Signal emitted when the button gets unchecked. More...
 
virtual bool setFirstFocus () override
 Set focus on the widget's first descendant. More...
 
- Public Member Functions inherited from Wt::WFormWidget
 WFormWidget ()
 Creates a WFormWidget.
 
 ~WFormWidget ()
 Destructor.
 
WLabellabel () const
 Returns the label associated with this widget. More...
 
virtual void setHidden (bool hidden, const WAnimation &animation=WAnimation()) override
 Sets the hidden state of this widget. More...
 
void setValidator (const std::shared_ptr< WValidator > &validator)
 Sets a validator for this field. More...
 
virtual std::shared_ptr< WValidatorvalidator () const
 Returns the validator.
 
virtual ValidationState validate ()
 Validates the field. More...
 
void setEnabled (bool enabled)
 Sets whether the widget is enabled. More...
 
virtual void setReadOnly (bool readOnly)
 Sets the element read-only. More...
 
bool isReadOnly () const
 Returns whether the form element is read-only. More...
 
virtual void setPlaceholderText (const WString &placeholder)
 Sets the placeholder text. More...
 
const WStringplaceholderText () const
 Returns the placeholder text. More...
 
EventSignalchanged ()
 Signal emitted when the value was changed. More...
 
Signal< WValidator::Result > & validated ()
 Signal emitted when the widget is being validated. More...
 
virtual void setToolTip (const WString &text, TextFormat textFormat=TextFormat::Plain) override
 Sets a tooltip. More...
 
virtual bool canReceiveFocus () const override
 Returns whether the widget can receive focus. More...
 
virtual int tabIndex () const override
 Returns the tab index. More...
 
- Public Member Functions inherited from Wt::WInteractWidget
 WInteractWidget ()
 Create an InteractWidget.
 
EventSignal< WKeyEvent > & keyWentDown ()
 Event signal emitted when a keyboard key is pushed down. More...
 
EventSignal< WKeyEvent > & keyPressed ()
 Event signal emitted when a "character" was entered. More...
 
EventSignal< WKeyEvent > & keyWentUp ()
 Event signal emitted when a keyboard key is released. More...
 
EventSignalenterPressed ()
 Event signal emitted when enter was pressed. More...
 
EventSignalescapePressed ()
 Event signal emitted when escape was pressed. More...
 
EventSignal< WMouseEvent > & clicked ()
 Event signal emitted when a mouse key was clicked on this widget. More...
 
EventSignal< WMouseEvent > & doubleClicked ()
 Event signal emitted when a mouse key was double clicked on this widget. More...
 
EventSignal< WMouseEvent > & mouseWentDown ()
 Event signal emitted when a mouse key was pushed down on this widget. More...
 
EventSignal< WMouseEvent > & mouseWentUp ()
 Event signal emitted when a mouse key was released on this widget. More...
 
EventSignal< WMouseEvent > & mouseWentOut ()
 Event signal emitted when the mouse went out of this widget. More...
 
EventSignal< WMouseEvent > & mouseWentOver ()
 Event signal emitted when the mouse entered this widget. More...
 
EventSignal< WMouseEvent > & mouseMoved ()
 Event signal emitted when the mouse moved over this widget. More...
 
EventSignal< WMouseEvent > & mouseDragged ()
 Event signal emitted when the mouse is dragged over this widget. More...
 
EventSignal< WMouseEvent > & mouseWheel ()
 Event signal emitted when the mouse scroll wheel was used. More...
 
EventSignal< WTouchEvent > & touchStarted ()
 Event signal emitted when a finger is placed on the screen. More...
 
EventSignal< WTouchEvent > & touchEnded ()
 Event signal emitted when a finger is removed from the screen. More...
 
EventSignal< WTouchEvent > & touchMoved ()
 Event signal emitted when a finger, which is already placed on the screen, is moved across the screen. More...
 
EventSignal< WGestureEvent > & gestureStarted ()
 Event signal emitted when a gesture is started. More...
 
EventSignal< WGestureEvent > & gestureChanged ()
 Event signal emitted when a gesture is changed. More...
 
EventSignal< WGestureEvent > & gestureEnded ()
 Event signal emitted when a gesture is ended. More...
 
void setDraggable (const std::string &mimeType, WWidget *dragWidget=nullptr, bool isDragWidgetOnly=false, WObject *sourceWidget=nullptr)
 Configure dragging for drag and drop. More...
 
void unsetDraggable ()
 Disable drag & drop for this widget. More...
 
void setMouseOverDelay (int delay)
 Sets a delay for the mouse over event. More...
 
int mouseOverDelay () const
 Returns the mouse over signal delay. More...
 
virtual void setPopup (bool popup) override
 Lets the widget overlay over other sibling widgets. More...
 
virtual void load () override
 Loads content just before the widget is used. More...
 
virtual bool isEnabled () const override
 Returns whether the widget is enabled. More...
 
- Public Member Functions inherited from Wt::WWebWidget
 WWebWidget ()
 Construct a WebWidget.
 
virtual std::vector< WWidget * > children () const override
 Returns child widgets. More...
 
SignalchildrenChanged ()
 Signal emitted when children have been added or removed. More...
 
virtual void setPositionScheme (PositionScheme scheme) override
 Sets the CSS position scheme. More...
 
virtual PositionScheme positionScheme () const override
 Returns the CSS position scheme. More...
 
virtual void setOffsets (const WLength &offset, WFlags< Side > sides=AllSides) override
 Sets CSS offsets for a non-statically positioned widget. More...
 
virtual WLength offset (Side s) const override
 Returns a CSS offset. More...
 
virtual void resize (const WLength &width, const WLength &height) override
 Resizes the widget. More...
 
virtual WLength width () const override
 Returns the width. More...
 
virtual WLength height () const override
 Returns the height. More...
 
virtual void setMinimumSize (const WLength &width, const WLength &height) override
 Sets a minimum size. More...
 
virtual WLength minimumWidth () const override
 Returns the minimum width. More...
 
virtual WLength minimumHeight () const override
 Returns the minimum height. More...
 
virtual void setMaximumSize (const WLength &width, const WLength &height) override
 Sets a maximum size. More...
 
virtual WLength maximumWidth () const override
 Returns the maximum width. More...
 
virtual WLength maximumHeight () const override
 Returns the maximum height. More...
 
virtual void setLineHeight (const WLength &height) override
 Sets the CSS line height for contained text.
 
virtual WLength lineHeight () const override
 Returns the CSS line height for contained text. More...
 
virtual void setFloatSide (Side s) override
 Specifies a CSS float side. More...
 
virtual Side floatSide () const override
 Returns the CSS float side. More...
 
virtual void setClearSides (WFlags< Side > sides) override
 Sets the sides that should be cleared of floats. More...
 
virtual WFlags< SideclearSides () const override
 Returns the sides that should remain empty. More...
 
virtual void setMargin (const WLength &margin, WFlags< Side > sides=AllSides) override
 Sets CSS margins around the widget. More...
 
virtual WLength margin (Side side) const override
 Returns a CSS margin set. More...
 
virtual void setHiddenKeepsGeometry (bool enabled) override
 Sets whether the widget keeps its geometry when hidden. More...
 
virtual bool hiddenKeepsGeometry () const override
 Returns whether the widget keeps its geometry when hidden. More...
 
virtual bool isHidden () const override
 Returns whether the widget is set hidden. More...
 
virtual bool isVisible () const override
 Returns whether the widget is visible. More...
 
virtual void setDisabled (bool disabled) override
 Sets whether the widget is disabled. More...
 
virtual bool isDisabled () const override
 Returns whether the widget is set disabled. More...
 
virtual bool isPopup () const override
 Returns whether the widget is overlayed. More...
 
virtual void setInline (bool isInline) override
 Sets whether the widget is displayed inline or as a block. More...
 
virtual bool isInline () const override
 Returns whether the widget is displayed inline or as block. More...
 
virtual void setDecorationStyle (const WCssDecorationStyle &style) override
 Sets a CSS decoration style. More...
 
virtual WCssDecorationStyledecorationStyle () override
 Returns the decoration style of this widget. More...
 
virtual void setStyleClass (const WString &styleClass) override
 Sets (one or more) CSS style classes. More...
 
virtual WString styleClass () const override
 Returns the CSS style class. More...
 
virtual void addStyleClass (const WString &styleClass, bool force=false) override
 Adds a CSS style class. More...
 
virtual void removeStyleClass (const WString &styleClass, bool force=false) override
 Removes a CSS style class. More...
 
virtual bool hasStyleClass (const WString &styleClass) const override
 Returns whether the widget has a style class.
 
virtual void setVerticalAlignment (AlignmentFlag alignment, const WLength &length=WLength()) override
 Sets the vertical alignment. More...
 
virtual AlignmentFlag verticalAlignment () const override
 Returns the vertical alignment. More...
 
virtual WLength verticalAlignmentLength () const override
 Returns the fixed vertical alignment that was set. More...
 
virtual void setDeferredToolTip (bool enable, TextFormat textFormat=TextFormat::Plain) override
 Enable deferred tooltip. More...
 
virtual WString toolTip () const override
 Returns the tooltip.
 
virtual void setAttributeValue (const std::string &name, const WString &value) override
 Sets an attribute value. More...
 
virtual WString attributeValue (const std::string &name) const override
 Returns an attribute value. More...
 
virtual void setJavaScriptMember (const std::string &name, const std::string &value) override
 Sets a JavaScript member. More...
 
virtual std::string javaScriptMember (const std::string &name) const override
 Returns the value of a JavaScript member. More...
 
virtual void callJavaScriptMember (const std::string &name, const std::string &args) override
 Calls a JavaScript member. More...
 
virtual bool loaded () const override
 Returns whether this widget has been loaded. More...
 
virtual void setId (const std::string &id) override
 Sets the CSS Id. More...
 
virtual WWidgetfind (const std::string &name) override
 Finds a descendent widget by name. More...
 
virtual WWidgetfindById (const std::string &id) override
 Finds a descendent widget by id.
 
virtual void setSelectable (bool selectable) override
 Sets as selectable. More...
 
virtual void doJavaScript (const std::string &javascript) override
 Executes the given JavaScript statements when the widget is rendered or updated. More...
 
virtual const std::string id () const override
 Returns the (unique) identifier for this object. More...
 
void setLoadLaterWhenInvisible (bool)
 Change the way the widget is loaded when invisible. More...
 
std::string htmlTagName () const
 returns the current html tag name More...
 
void setHtmlTagName (const std::string &tag)
 set the custom HTML tag name More...
 
virtual void setCanReceiveFocus (bool enabled) override
 Sets whether the widget can receive focus. More...
 
virtual void setFocus (bool focus) override
 Sets focus. More...
 
virtual bool hasFocus () const override
 Returns whether the widget currently has the focus.
 
virtual void setTabIndex (int index) override
 Sets the tab index. More...
 
EventSignalblurred ()
 Signal emitted when the widget lost focus. More...
 
EventSignalfocussed ()
 Signal emitted when the widget recieved focus. More...
 
virtual bool scrollVisibilityEnabled () const finaloverride
 Returns whether scroll visibility detection is enabled for this widget. More...
 
virtual void setScrollVisibilityEnabled (bool enabled) finaloverride
 Sets whether scroll visibility detection is enabled for this widget. More...
 
virtual int scrollVisibilityMargin () const finaloverride
 Returns the margin around the viewport within which the widget is considered visible. More...
 
virtual void setScrollVisibilityMargin (int margin) finaloverride
 Sets the margin around the viewport within which the widget is considered visible. More...
 
virtual Signal< bool > & scrollVisibilityChanged () finaloverride
 Signal triggered when the scroll visibility of this widget changes. More...
 
virtual bool isScrollVisible () const finaloverride
 Returns whether this widget is currently considered scroll visible. More...
 
virtual void setThemeStyleEnabled (bool enabled) finaloverride
 Sets whether theme styling for a widget is enabled or disabled. More...
 
virtual bool isThemeStyleEnabled () const finaloverride
 Returns whether this widget is currently styled by the chosen theme. More...
 
virtual void setObjectName (const std::string &name) override
 Sets an object name. More...
 
- Public Member Functions inherited from Wt::WWidget
virtual ~WWidget ()
 Destructor. More...
 
WWidgetparent () const
 Returns the parent widget.
 
virtual std::unique_ptr< WWidgetremoveWidget (WWidget *widget)
 Removes a child widget.
 
std::unique_ptr< WWidgetremoveFromParent ()
 Removes the widget from its parent. More...
 
void setWidth (const WLength &width)
 Sets the width. More...
 
void setHeight (const WLength &height)
 Sets the height. More...
 
virtual void positionAt (const WWidget *widget, Orientation orientation=Orientation::Vertical)
 Positions a widget next to another widget. More...
 
virtual void toggleStyleClass (const WString &styleClass, bool add, bool force=false)
 Toggles a CSS style class.
 
std::string jsRef () const
 Returns a JavaScript expression to the corresponding DOM node. More...
 
void setFocus ()
 Sets focus. More...
 
virtual void acceptDrops (const std::string &mimeType, const WString &hoverStyleClass=WString())
 Sets a mime type to be accepted for dropping. More...
 
virtual void stopAcceptDrops (const std::string &mimeType)
 Indicates that a mime type is no longer accepted for dropping. More...
 
virtual void htmlText (std::ostream &out)
 Streams the (X)HTML representation. More...
 
bool isRendered () const
 Returns whether the widget is rendered. More...
 
void hide ()
 Hides the widget. More...
 
void animateHide (const WAnimation &animation)
 Hides the widget using an animation. More...
 
void show ()
 Shows the widget. More...
 
void animateShow (const WAnimation &animation)
 Shows the widget using an animation. More...
 
void enable ()
 Enables the widget. More...
 
void disable ()
 Disable thes widget. More...
 
bool layoutSizeAware () const
 Returns whether the widget is layout size aware. More...
 
- Public Member Functions inherited from Wt::WObject
void addChild (std::unique_ptr< WObject > child)
 Add a child WObject whose lifetime is determined by this WObject.
 
template<typename Child >
Child * addChild (std::unique_ptr< Child > child)
 Add a child WObject, returning a raw pointer. More...
 
std::unique_ptr< WObjectremoveChild (WObject *child)
 Remove a child WObject, so its lifetime is no longer determined by this WObject.
 
virtual std::string objectName () const
 Returns the object name. More...
 
void resetLearnedSlots ()
 Resets learned stateless slot implementations. More...
 
template<class T >
void resetLearnedSlot (void(T::*method)())
 Resets a learned stateless slot implementation. More...
 
template<class T >
WStatelessSlot * implementStateless (void(T::*method)())
 Declares a slot to be stateless and learn client-side behaviour on first invocation. More...
 
template<class T >
WStatelessSlot * implementStateless (void(T::*method)(), void(T::*undoMethod)())
 Declares a slot to be stateless and learn client-side behaviour in advance. More...
 
void isNotStateless ()
 Marks the current function as not stateless. More...
 
template<class T >
WStatelessSlot * implementJavaScript (void(T::*method)(), const std::string &jsCode)
 Provides a JavaScript implementation for a method. More...
 
- Public Member Functions inherited from Wt::Core::observable
 observable () noexcept
 Default constructor.
 
virtual ~observable ()
 Destructor. More...
 

Protected Member Functions

virtual void propagateSetEnabled (bool enabled) override
 Propagates that a widget was enabled or disabled through children. More...
 
virtual void enableAjax () override
 Progresses to an Ajax-enabled widget. More...
 
- Protected Member Functions inherited from Wt::WFormWidget
virtual void render (WFlags< RenderFlag > flags) override
 Renders the widget. More...
 
- Protected Member Functions inherited from Wt::WWebWidget
virtual WStatelessSlot * getStateless (Method method) override
 On-demand stateless slot implementation. More...
 
- Protected Member Functions inherited from Wt::WWidget
void setLayoutSizeAware (bool sizeAware)
 Sets the widget to be aware of its size set by a layout manager. More...
 
virtual void layoutSizeChanged (int width, int height)
 Virtual method that indicates a size change. More...
 
 WWidget ()
 Creates a widget.
 
virtual void dropEvent (WDropEvent dropEvent)
 Handles a drop event. More...
 
virtual int boxPadding (Orientation orientation) const
 Returns the widget's built-in padding. More...
 
virtual int boxBorder (Orientation orientation) const
 Returns the widget's built-in border width. More...
 
void scheduleRender (WFlags< RepaintFlag > flags=None)
 Schedules rerendering of the widget. More...
 

Additional Inherited Members

- Public Types inherited from Wt::WObject
typedef void(WObject::* Method) ()
 Typedef for a WObject method without arguments.
 
- Static Public Member Functions inherited from Wt::WWebWidget
static std::string jsStringLiteral (const std::string &v, char delimiter= '\'')
 Turn a CharEncoding::UTF8 encoded string into a JavaScript string literal. More...
 
- Static Public Member Functions inherited from Wt::WWidget
static WString tr (const char *key)
 Short hand for WString::tr() More...
 

Detailed Description

A widget that represents a push button.

To act on a button click, connect a slot to the clicked() signal.

Usage example:

// container is a WContainerWidget*
container->addWidget(std::make_unique<Wt::WPushButton>("Okay"));
ok->clicked().connect(ok, &Wt::WPushButton::disable);
ok->clicked().connect(this, &MyClass::processData);

WPushButton is an inline widget.

CSS

The widget corresponds to the HTML <button> tag (with some exceptions in the bootstrap theme).

Constructor & Destructor Documentation

Wt::WPushButton::WPushButton ( const WString text)

Creates a push button with given label text.

The default text format is TextFormat::Plain.

Member Function Documentation

EventSignal & Wt::WPushButton::checked ( )

Signal emitted when the button gets checked.

This signal is emitted when the user checks the button.

You can use the clicked() signal to react to any change of the button state.

See also
setCheckable()
void Wt::WPushButton::enableAjax ( )
overrideprotectedvirtual

Progresses to an Ajax-enabled widget.

This method is called when the progressive bootstrap method is used, and support for AJAX has been detected. The default behavior will upgrade the widget's event handling to use AJAX instead of full page reloads, and propagate the call to its children.

You may want to reimplement this method if you want to make changes to widget when AJAX is enabled. You should always call the base implementation.

See also
WApplication::enableAjax()

Reimplemented from Wt::WFormWidget.

WLink Wt::WPushButton::icon ( ) const

Returns the icon.

See also
setIcon()
bool Wt::WPushButton::isCheckable ( ) const

Returns whether a button is checkable.

See also
setCheckable()
bool Wt::WPushButton::isChecked ( ) const

Returns the button state.

See also
setChecked()
bool Wt::WPushButton::isDefault ( ) const

Returns whether the button is a default button.

See also
setDefault()
const WLink& Wt::WPushButton::link ( ) const

Returns the destination link.

See also
setLink()
WPopupMenu* Wt::WPushButton::menu ( ) const

Returns an associated popup menu.

See also
setMenu()
void Wt::WPushButton::propagateSetEnabled ( bool  enabled)
overrideprotectedvirtual

Propagates that a widget was enabled or disabled through children.

When enabling or disabling a widget, you usually also want to disable contained children. This method is called by setDisabled() to propagate its state to all children.

You may want to reimplement this method if they wish to render differently when a widget is disabled. The default implementation will propagate the signal to all children.

Reimplemented from Wt::WFormWidget.

void Wt::WPushButton::refresh ( )
overridevirtual

Refresh the widget.

The refresh method is invoked when the locale is changed using WApplication::setLocale() or when the user hit the refresh button.

The widget must actualize its contents in response.

Note
This does *not* rerender the widget! Calling refresh() usually does not have any effect (unless you've reimplemented refresh() to attach to it an effect).

Reimplemented from Wt::WFormWidget.

void Wt::WPushButton::setCheckable ( bool  checkable)

Sets whether the button is checkable.

A checkable button can be checked and unchecked, and clicking will toggle between these two states.

See also
setChecked(bool)
void Wt::WPushButton::setChecked ( bool  checked)

Sets the button state.

This is ignored for a button which is not checkable.

This method does not emit one of the checked() or unChecked() signals.

See also
setCheckable(), setChecked(), setUnChecked()
void Wt::WPushButton::setChecked ( )

Checks the button.

Does not emit the checked() signal.

See also
setChecked(bool)
void Wt::WPushButton::setDefault ( bool  enabled)

Sets the default property.

This has only a functional meaning for a button in a dialog footer, as it becomes associated with pressing 'enter' in the dialog.

A default button may be rendered in a different style, depending on the theme.

bool Wt::WPushButton::setFirstFocus ( )
overridevirtual

Set focus on the widget's first descendant.

Set focus on the widget itself, or on a first descendant which can receive focus.

Returns whether focus could be set.

Reimplemented from Wt::WWebWidget.

void Wt::WPushButton::setIcon ( const WLink link)

Sets an icon.

The icon is placed to the left of the text.

void Wt::WPushButton::setLink ( const WLink link)

Sets a destination link.

This method can be used to make the button behave like a WAnchor (or conversely, an anchor look like a button) and redirect to another URL when clicked.

The link may be to a URL, a resource, or an internal path.

By default, a button does not link to an URL and you should listen to the clicked() signal to react to a click event.

Warning
In Bootstrap theme, you should set a link before it's rendered since it commit's the button to be rendered as an anchor. (see also http://redmine.emweb.be/issues/1802).
void Wt::WPushButton::setMenu ( std::unique_ptr< WPopupMenu menu)

Links a popup menu to the button.

When the button is clicked, the linked popup menu is shown.

bool Wt::WPushButton::setText ( const WString text)

Sets the button text.

The default text format is Wt::TextFormat::Plain.

When the current text format is Wt::TextFormat::XHTML, and text is literal (not created using WString::tr()), it is parsed using an XML parser which discards malicious tags and attributes silently. When the parser encounters an XML parse error, the textFormat is changed to Wt::TextFormat::Plain.

Returns whether the text could be set using the current textFormat. A return value of false indicates that the text format was changed in order to be able to accept the new text.

See also
setTextFormat()
bool Wt::WPushButton::setTextFormat ( TextFormat  format)

Sets the text format.

The textFormat controls how the string should be interpreted: either as plain text, which is displayed literally, or as XHTML-markup.

When changing the textFormat to Wt::TextFormat::XHTML, and the current text is literal (not created using WString::tr()), the current text is parsed using an XML parser which discards malicious tags and attributes silently. When the parser encounters an XML parse error, the textFormat is left unchanged, and this method returns false.

Returns whether the textFormat could be set for the current text.

The default format is Wt::TextFormat::Plain.

void Wt::WPushButton::setUnChecked ( )

Unchecks the button.

Does not emit the unChecked() signal.

See also
setChecked(bool)
void Wt::WPushButton::setValueText ( const WString value)
overridevirtual

Sets the current value.

Has no effect, since a button has not value.

Implements Wt::WFormWidget.

const WString& Wt::WPushButton::text ( ) const

Returns the button text.

See also
setText()
TextFormat Wt::WPushButton::textFormat ( ) const

Returns the text format.

See also
setTextFormat()
EventSignal & Wt::WPushButton::unChecked ( )

Signal emitted when the button gets unchecked.

This signal is emitted when the user unchecks the button.

You can use the clicked() signal to react to any change of the button state.

See also
setCheckable()
WString Wt::WPushButton::valueText ( ) const
overridevirtual

Returns the current value.

Returns an empty string, since a button has no value.

Implements Wt::WFormWidget.


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