Gtk::Scale Class Reference
Widgets

A slider widget for selecting a value from a range. More...

`#include <gtkmm/scale.h>`

Inheritance diagram for Gtk::Scale:
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## Public Member Functions

| Scale (Scale&& src) noexcept
Scale& | operator= (Scale&& src) noexcept
| Scale (const Scale&)=delete
Scale& | operator= (const Scale&)=delete
virtual | ~Scale () noexcept
GtkScale* | gobj ()
| Provides access to the underlying C GtkObject. More...
const GtkScale* | gobj () const
| Provides access to the underlying C GtkObject. More...
| Scale ()
| Scale (Orientation orientation)
| Scale (const Glib::RefPtr< Adjustment >& adjustment, Orientation orientation=ORIENTATION_HORIZONTAL)
void | set_digits (int digits)
| Set the number of decimal digits. More...
int | get_digits () const
| Get the number of decimal digits. More...
void | set_draw_value (bool draw_value=true)
| Set whether the current value is displayed as a string next to the slider. More...
bool | get_draw_value () const
| Get whether the current value is displayed as a string next to the slider. More...
void | set_value_pos (PositionType pos)
| Set the position in which the value is displayed. More...
PositionType | get_value_pos () const
| Get the position in which the value is displayed. More...
void | set_has_origin (bool has_origin=true)
| If has_origin is set to `true` (the default), the scale will highlight the part of the scale between the origin (bottom or left side) of the scale and the current value. More...
bool | get_has_origin () const
| Returns whether the scale has an origin. More...
Glib::RefPtr< Pango::Layout > | get_layout ()
| Gets the Pango::Layout used to display the scale. More...
Glib::RefPtr< const Pango::Layout > | get_layout () const
| Gets the Pango::Layout used to display the scale. More...
void | get_layout_offsets (int& x, int& y) const
| Obtains the coordinates where the scale will draw the Pango::Layout representing the text in the scale. More...
void | add_mark (double value, PositionType position, const Glib::ustring& markup)
| Adds a mark at value. More...
void | clear_marks ()
| Removes any marks that have been added with add_mark(). More...
Glib::SignalProxy1< Glib::ustring, double > | signal_format_value ()
Glib::PropertyProxy< int > | property_digits ()
| Number of displayed decimal digits. More...
Glib::PropertyProxy_ReadOnly< int > | property_digits () const
| The number of decimal places that are displayed in the value. More...
Glib::PropertyProxy< bool > | property_draw_value ()
| Whether to draw the value as a string next to slider. More...
Glib::PropertyProxy_ReadOnly< bool > | property_draw_value () const
| Whether the current value is displayed as a string next to the slider. More...
Glib::PropertyProxy< PositionType > | property_value_pos ()
| The position in which the value is displayed. More...
Glib::PropertyProxy_ReadOnly< PositionType > | property_value_pos () const
| The position in which the current value is displayed. More...
Glib::PropertyProxy< bool > | property_has_origin ()
| Whether the scale has an origin. More...
Glib::PropertyProxy_ReadOnly< bool > | property_has_origin () const
| Whether the scale has an origin. More...
Public Member Functions inherited from Gtk::Range
| Range (Range&& src) noexcept
Range& | operator= (Range&& src) noexcept
| Range (const Range&)=delete
Range& | operator= (const Range&)=delete
virtual | ~Range () noexcept
GtkRange* | gobj ()
| Provides access to the underlying C GtkObject. More...
const GtkRange* | gobj () const
| Provides access to the underlying C GtkObject. More...
void | set_adjustment (const Glib::RefPtr< Adjustment >& adjustment)
| Sets the adjustment to be used as the “model” object for this range widget. More...
void | unset_adjustment ()
Glib::RefPtr< Adjustment > | get_adjustment ()
| Get the Gtk::Adjustment which is the “model” object for Gtk::Range. More...
Glib::RefPtr< const Adjustment > | get_adjustment () const
| Get the Gtk::Adjustment which is the “model” object for Gtk::Range. More...
void | set_inverted (bool setting=true)
| Ranges normally move from lower to higher values as the slider moves from top to bottom or left to right. More...
bool | get_inverted () const
| Gets the value set by set_inverted(). More...
void | set_flippable (bool flippable=true)
| If a range is flippable, it will switch its direction if it is horizontal and its direction is Gtk::TEXT_DIR_RTL. More...
bool | get_flippable () const
| Gets the value set by set_flippable(). More...
void | set_slider_size_fixed (bool size_fixed=true)
| Sets whether the range’s slider has a fixed size, or a size that depends on its adjustment’s page size. More...
bool | get_slider_size_fixed () const
| This function is useful mainly for Gtk::Range subclasses. More...
void | set_min_slider_size (bool min_size=true)
| Sets the minimum size of the range’s slider. More...
int | get_min_slider_size () const
| This function is useful mainly for Gtk::Range subclasses. More...
Gdk::Rectangle | get_range_rect () const
| This method returns the area that contains the range's trough and its steppers, in the widget's Gdk::Window coordinates. More...
void | get_slider_range (int& slider_start, int& slider_end) const
| This function returns sliders range along the long dimension, in widget->window coordinates. More...
void | set_lower_stepper_sensitivity (SensitivityType sensitivity)
| Sets the sensitivity policy for the stepper that points to the 'lower' end of the GtkRange’s adjustment. More...
SensitivityType | get_lower_stepper_sensitivity () const
| Gets the sensitivity policy for the stepper that points to the 'lower' end of the GtkRange’s adjustment. More...
void | set_upper_stepper_sensitivity (SensitivityType sensitivity)
| Sets the sensitivity policy for the stepper that points to the 'upper' end of the GtkRange’s adjustment. More...
SensitivityType | get_upper_stepper_sensitivity () const
| Gets the sensitivity policy for the stepper that points to the 'upper' end of the GtkRange’s adjustment. More...
void | set_increments (double step, double page)
| Sets the step and page sizes for the range. More...
void | set_range (double min, double max)
| Sets the allowable values in the Gtk::Range, and clamps the range value to be between min and max. More...
void | set_value (double value)
| Sets the current value of the range; if the value is outside the minimum or maximum range values, it will be clamped to fit inside them. More...
double | get_value () const
| Gets the current value of the range. More...
void | set_show_fill_level (bool show_fill_level=true)
| Sets whether a graphical fill level is show on the trough. More...
bool | get_show_fill_level () const
| Gets whether the range displays the fill level graphically. More...
void | set_restrict_to_fill_level (bool restrict_to_fill_level=true)
| Sets whether the slider is restricted to the fill level. More...
bool | get_restrict_to_fill_level () const
| Gets whether the range is restricted to the fill level. More...
void | set_fill_level (double fill_level)
| Set the new position of the fill level indicator. More...
double | get_fill_level () const
| Gets the current position of the fill level indicator. More...
void | set_round_digits (int round_digits)
| Sets the number of digits to round the value to when it changes. More...
int | get_round_digits () const
| Gets the number of digits to round the value to when it changes. More...
Glib::SignalProxy0< void > | signal_value_changed ()
Glib::SignalProxy1< void, double > | signal_adjust_bounds ()
Glib::SignalProxy1< void, ScrollType > | signal_move_slider ()
Glib::SignalProxy2< bool, ScrollType, double > | signal_change_value ()
Glib::PropertyProxy< Adjustment* > | property_adjustment ()
| The GtkAdjustment that contains the current value of this range object. More...
Glib::PropertyProxy_ReadOnly< Adjustment* > | property_adjustment () const
| The GtkAdjustment that contains the current value of this range object. More...
Glib::PropertyProxy< bool > | property_inverted ()
| Invert direction slider moves to increase range value. More...
Glib::PropertyProxy_ReadOnly< bool > | property_inverted () const
| Invert direction slider moves to increase range value. More...
Glib::PropertyProxy< SensitivityType > | property_lower_stepper_sensitivity ()
| The sensitivity policy for the stepper that points to the adjustment's lower side. More...
Glib::PropertyProxy_ReadOnly< SensitivityType > | property_lower_stepper_sensitivity () const
| The sensitivity policy for the stepper that points to the adjustment's lower side. More...
Glib::PropertyProxy< SensitivityType > | property_upper_stepper_sensitivity ()
| The sensitivity policy for the stepper that points to the adjustment's upper side. More...
Glib::PropertyProxy_ReadOnly< SensitivityType > | property_upper_stepper_sensitivity () const
| The sensitivity policy for the stepper that points to the adjustment's upper side. More...
Glib::PropertyProxy< bool > | property_show_fill_level ()
| The show-fill-level property controls whether fill level indicator graphics are displayed on the trough. More...
Glib::PropertyProxy_ReadOnly< bool > | property_show_fill_level () const
| The show-fill-level property controls whether fill level indicator graphics are displayed on the trough. More...
Glib::PropertyProxy< bool > | property_restrict_to_fill_level ()
| The restrict-to-fill-level property controls whether slider movement is restricted to an upper boundary set by the fill level. More...
Glib::PropertyProxy_ReadOnly< bool > | property_restrict_to_fill_level () const
| The restrict-to-fill-level property controls whether slider movement is restricted to an upper boundary set by the fill level. More...
Glib::PropertyProxy< double > | property_fill_level ()
| The fill level (e.g. prebuffering of a network stream). More...
Glib::PropertyProxy_ReadOnly< double > | property_fill_level () const
| The fill level (e.g. prebuffering of a network stream). More...
Glib::PropertyProxy< int > | property_round_digits ()
| The number of digits to round the value to when it changes, or -1. More...
Glib::PropertyProxy_ReadOnly< int > | property_round_digits () const
| The number of digits to round the value to when it changes, or -1. More...
Public Member Functions inherited from Gtk::Widget
| Widget (Widget&& src) noexcept
Widget& | operator= (Widget&& src) noexcept
| Widget (const Widget&)=delete
Widget& | operator= (const Widget&)=delete
virtual | ~Widget () noexcept
| Destroys the widget. More...
GtkWidget* | gobj ()
| Provides access to the underlying C GtkObject. More...
const GtkWidget* | gobj () const
| Provides access to the underlying C GtkObject. More...
void | show ()
| Flags a widget to be displayed. More...
void | show_now ()
| Shows a widget. More...
void | hide ()
| Reverses the effects of show(), causing the widget to be hidden (invisible to the user). More...
void | show_all ()
| Recursively shows a widget, and any child widgets (if the widget is a container). More...
void | queue_draw ()
| Equivalent to calling queue_draw_area() for the entire area of a widget. More...
void | queue_draw_area (int x, int y, int width, int height)
| Convenience function that calls queue_draw_region() on the region created from the given coordinates. More...
void | queue_draw_region (const ::Cairo::RefPtr< const ::Cairo::Region >& region)
| Invalidates the area of widget defined by region by calling gdk_window_invalidate_region() on the widget’s window and all its child windows. More...
void | queue_resize ()
| This function is only for use in widget implementations. More...
void | size_allocate (const Allocation& allocation)
| This function is only used by Gtk::Container subclasses, to assign a size and position to their child widgets. More...
void | size_allocate (const Allocation& allocation, int baseline)
| This function is only used by Gtk::Container subclasses, to assign a size, position and (optionally) baseline to their child widgets. More...
SizeRequestMode | get_request_mode () const
| Gets whether the widget prefers a height-for-width layout or a width-for-height layout. More...
void | get_preferred_width (int& minimum_width, int& natural_width) const
| Retrieves a widget’s initial minimum and natural width. More...
void | get_preferred_height_for_width (int width, int& minimum_height, int& natural_height) const
| Retrieves a widget’s minimum and natural height if it would be given the specified width. More...
void | get_preferred_height_for_width (int width, int& minimum_height, int& natural_height, int& minimum_baseline, int& natural_baseline) const
| Retrieves a widget’s minimum and natural height and the corresponding baselines if it would be given the specified width, or the default height if width is -1. More...
void | get_preferred_height (int& minimum_height, int& natural_height) const
| Retrieves a widget’s initial minimum and natural height. More...
void | get_preferred_width_for_height (int height, int& minimum_width, int& natural_width) const
| Retrieves a widget’s minimum and natural width if it would be given the specified height. More...
void | get_preferred_size (Requisition& minimum_size, Requisition& natural_size) const
| Retrieves the minimum and natural size of a widget, taking into account the widget’s preference for height-for-width management. More...
void | add_accelerator (const Glib::ustring& accel_signal, const Glib::RefPtr< AccelGroup >& accel_group, guint accel_key, Gdk::ModifierType accel_mods, AccelFlags accel_flags)
| Installs an accelerator for this widget in accel_group that causes accel_signal to be emitted if the accelerator is activated. More...
bool | remove_accelerator (const Glib::RefPtr< AccelGroup >& accel_group, guint accel_key, Gdk::ModifierType accel_mods)
| Removes an accelerator from widget, previously installed with add_accelerator(). More...
void | set_accel_path (const Glib::ustring& accel_path, const Glib::RefPtr< AccelGroup >& accel_group)
| Given an accelerator group, accel_group, and an accelerator path, accel_path, sets up an accelerator in accel_group so whenever the key binding that is defined for accel_path is pressed, widget will be activated. More...
bool | mnemonic_activate (bool group_cycling)
| Emits the Gtk::Widget::signal_mnemonic_activate() signal. More...
bool | event (GdkEvent* gdk_event)
| Rarely-used function. More...
int | send_expose (GdkEvent* gdk_event)
| Very rarely-used function. More...
bool | send_focus_change (GdkEvent* gdk_event)
| Sends the focus change gdk_event to widget. More...
bool | activate ()
| For widgets that can be “activated” (buttons, menu items, etc.) this function activates them. More...
void | reparent (Widget& new_parent)
| Moves a widget from one Gtk::Container to another, handling reference count issues to avoid destroying the widget. More...
bool | intersect (const Gdk::Rectangle& area) const
bool | intersect (const Gdk::Rectangle& area, Gdk::Rectangle& intersection) const
| Computes the intersection of a widget’s area and area, storing the intersection in intersection, and returns `true` if there was an intersection. More...
::Cairo::RefPtr< ::Cairo::Region > | region_intersect (const ::Cairo::RefPtr< ::Cairo::Region >& region) const
| Computes the intersection of a widget’s area and region, returning the intersection. More...
void | freeze_child_notify ()
| Stops emission of Gtk::Widget::signal_child_notify() signals on widget. More...
void | child_notify (const Glib::ustring& child_property)
| Emits a Gtk::Widget::signal_child_notify() signal for the [child property][child-properties] child_property on widget. More...
void | thaw_child_notify ()
| Reverts the effect of a previous call to freeze_child_notify(). More...
void | set_can_focus (bool can_focus=true)
| Specifies whether widget can own the input focus. More...
bool | get_can_focus () const
| Determines whether widget can own the input focus. More...
bool | has_focus () const
| Determines if the widget has the global input focus. More...
bool | is_focus () const
| Determines if the widget is the focus widget within its toplevel. More...
bool | has_visible_focus () const
| Determines if the widget should show a visible indication that it has the global input focus. More...
void | grab_focus ()
| Causes widget to have the keyboard focus for the Gtk::Window it's inside. More...
void | set_can_default (bool can_default=true)
| Specifies whether widget can be a default widget. More...
bool | get_can_default () const
| Determines whether widget can be a default widget. More...
bool | has_default () const
| Determines whether widget is the current default widget within its toplevel. More...
void | grab_default ()
| Causes widget to become the default widget. More...
void | set_receives_default (bool receives_default=true)
| Specifies whether widget will be treated as the default widget within its toplevel when it has the focus, even if another widget is the default. More...
bool | get_receives_default () const
| Determines whether widget is always treated as the default widget within its toplevel when it has the focus, even if another widget is the default. More...
bool | has_grab () const
| Determines whether the widget is currently grabbing events, so it is the only widget receiving input events (keyboard and mouse). More...
bool | device_is_shadowed (const Glib::RefPtr< const Gdk::Device >& device)
| Returns `true` if device has been shadowed by a GTK+ device grab on another widget, so it would stop sending events to widget. More...
void | add_modal_grab ()
| Block events to everything else than this widget and its children. More...
void | remove_modal_grab ()
| Remove the modal grab of the widget in case it was previously grabbed. More...
void | set_name (const Glib::ustring& name)
| Widgets can be named, which allows you to refer to them from a CSS file. More...
void | unset_name ()
Glib::ustring | get_name () const
| Retrieves the name of a widget. More...
void | set_state (StateType state)
| This function is for use in widget implementations. More...
StateType | get_state () const
| Returns the widget’s state. More...
void | set_state_flags (StateFlags flags, bool clear=true)
| This function is for use in widget implementations. More...
void | unset_state_flags (StateFlags flags)
| This function is for use in widget implementations. More...
StateFlags | get_state_flags () const
| Returns the widget state as a flag set. More...
void | set_sensitive (bool sensitive=true)
| Sets the sensitivity of a widget. More...
bool | get_sensitive () const
| Returns the widget’s sensitivity (in the sense of returning the value that has been set using set_sensitive()). More...
bool | is_sensitive () const
| Returns the widget’s effective sensitivity, which means it is sensitive itself and also its parent widget is sensitive. More...
void | set_visible (bool visible=true)
| Sets the visibility state of widget. More...
bool | get_visible () const
| Determines whether the widget is visible. More...
bool | is_visible () const
| Determines whether the widget and all its parents are marked as visible. More...
bool | get_has_window () const
| Determines whether widget has a Gdk::Window of its own. More...
bool | get_is_toplevel () const
| Determines whether widget is a toplevel widget. More...
bool | get_is_drawable () const
| Determines whether widget can be drawn to. More...
bool | get_realized () const
| Determines whether widget is realized. More...
bool | get_mapped () const
| Whether the widget is mapped. More...
void | set_app_paintable (bool app_paintable=true)
| Sets whether the application intends to draw on the widget in an Gtk::Widget::signal_draw() handler. More...
bool | get_app_paintable () const
| Determines whether the application intends to draw on the widget in an Gtk::Widget::signal_draw() handler. More...
void | set_double_buffered (bool double_buffered=true)
| Widgets are double buffered by default; you can use this function to turn off the buffering. More...
bool | get_double_buffered () const
| Determines whether the widget is double buffered. More...
void | set_redraw_on_allocate (bool redraw_on_allocate=true)
| Sets whether the entire widget is queued for drawing when its size allocation changes. More...
void | set_child_visible (bool visible=true)
| Sets whether widget should be mapped along with its when its parent is mapped and widget has been shown with show(). More...
bool | get_child_visible () const
| Gets the value set with set_child_visible(). More...
Glib::RefPtr< Gdk::Window > | get_window ()
| Returns the widget’s window if it is realized, `0` otherwise. More...
Glib::RefPtr< const Gdk::Window > | get_window () const
| Returns the widget’s window if it is realized, `0` otherwise. More...
void | register_window (const Glib::RefPtr< Gdk::Window >& window)
| Registers a Gdk::Window with the widget and sets it up so that the widget receives events for it. More...
void | unregister_window (const Glib::RefPtr< Gdk::Window >& window)
| Unregisters a Gdk::Window from the widget that was previously set up with register_window(). More...
int | get_allocated_width () const
| Returns the width that has currently been allocated to widget. More...
int | get_allocated_height () const
| Returns the height that has currently been allocated to widget. More...
int | get_allocated_baseline () const
| Returns the baseline that has currently been allocated to widget. More...
Allocation | get_allocation () const
| Retrieves the widget's location. More...
void | set_allocation (const Allocation& allocation)
| Sets the widget’s allocation. More...
void | set_clip (const Allocation& clip)
| Sets the widget’s clip. More...
Allocation | get_clip () const
| Retrieves the widget’s clip area. More...
Container* | get_parent ()
| Returns the parent container of widget. More...
const Container* | get_parent () const
| Returns the parent container of widget. More...
Glib::RefPtr< Gdk::Window > | get_parent_window ()
| Gets widget’s parent window. More...
Glib::RefPtr< const Gdk::Window > | get_parent_window () const
| Gets widget’s parent window. More...
void | set_parent_window (const Glib::RefPtr< const Gdk::Window >& parent_window)
| Sets a non default parent window for widget. More...
bool | child_focus (DirectionType direction)
| This function is used by custom widget implementations; if you're writing an app, you’d use grab_focus() to move the focus to a particular widget, and Gtk::Container::set_focus_chain() to change the focus tab order. More...
bool | keynav_failed (DirectionType direction)
| This function should be called whenever keyboard navigation within a single widget hits a boundary. More...
void | error_bell ()
| Notifies the user about an input-related error on this widget. More...
void | set_size_request (int width=-1, int height=-1)
| Sets the minimum size of a widget; that is, the widget’s size request will be at least width by height. More...
void | get_size_request (int& width, int& height) const
| Gets the size request that was explicitly set for the widget using set_size_request(). More...
void | set_events (Gdk::EventMask events)
| Sets the event mask (see Gdk::EventMask) for a widget. More...
void | add_events (Gdk::EventMask events)
| Adds the events in the bitfield events to the event mask for widget. More...
void | set_device_events (const Glib::RefPtr< const Gdk::Device >& device, Gdk::EventMask events)
| Sets the device event mask (see Gdk::EventMask) for a widget. More...
void | add_device_events (const Glib::RefPtr< const Gdk::Device >& device, Gdk::EventMask events)
| Adds the device events in the bitfield events to the event mask for widget. More...
void | set_opacity (double opacity)
| Request the widget to be rendered partially transparent, with opacity 0 being fully transparent and 1 fully opaque. More...
double | get_opacity () const
| Fetches the requested opacity for this widget. More...
void | set_device_enabled (const Glib::RefPtr< Gdk::Device >& device, bool enabled=true)
| Enables or disables a Gdk::Device to interact with widget and all its children. More...
bool | get_device_enabled (const Glib::RefPtr< const Gdk::Device >& device) const
| Returns whether device can interact with widget and its children. More...
Container* | get_toplevel ()
| This function returns the topmost widget in the container hierarchy widget is a part of. More...
const Container* | get_toplevel () const
| This function returns the topmost widget in the container hierarchy widget is a part of. More...
Widget* | get_ancestor (GType widget_type)
| Gets the first ancestor of widget with type widget_type. More...
const Widget* | get_ancestor (GType widget_type) const
| Gets the first ancestor of widget with type widget_type. More...
Glib::RefPtr< Gdk::Visual > | get_visual ()
| Gets the visual that will be used to render widget. More...
Glib::RefPtr< Gdk::Screen > | get_screen ()
| Get the Gdk::Screen from the toplevel window associated with this widget. More...
Glib::RefPtr< const Gdk::Screen > | get_screen () const
| Get the Gdk::Screen from the toplevel window associated with this widget. More...
bool | has_screen () const
| Checks whether there is a Gdk::Screen is associated with this widget. More...
int | get_scale_factor () const
| Retrieves the internal scale factor that maps from window coordinates to the actual device pixels. More...
Glib::RefPtr< Gdk::Display > | get_display ()
| Get the Gdk::Display for the toplevel window associated with this widget. More...
Glib::RefPtr< const Gdk::Display > | get_display () const
| Get the Gdk::Display for the toplevel window associated with this widget. More...
Glib::RefPtr< Gdk::Window > | get_root_window ()
| Get the root window where this widget is located. More...
Glib::RefPtr< const Gdk::Window > | get_root_window () const
| Get the root window where this widget is located. More...
Glib::RefPtr< Settings > | get_settings ()
| Gets the settings object holding the settings used for this widget. More...
Glib::RefPtr< Clipboard > | get_clipboard (const Glib::ustring& selection)
| Returns the clipboard object for the given selection to be used with widget. More...
Glib::RefPtr< const Clipboard > | get_clipboard (const Glib::ustring& selection) const
| Returns the clipboard object for the given selection to be used with widget. More...
bool | get_hexpand () const
| Gets whether the widget would like any available extra horizontal space. More...
void | set_hexpand (bool expand=true)
| Sets whether the widget would like any available extra horizontal space. More...
bool | get_hexpand_set () const
| Gets whether set_hexpand() has been used to explicitly set the expand flag on this widget. More...
void | set_hexpand_set (bool set=true)
| Sets whether the hexpand flag (see get_hexpand()) will be used. More...
bool | get_vexpand () const
| Gets whether the widget would like any available extra vertical space. More...
void | set_vexpand (bool expand=true)
| Sets whether the widget would like any available extra vertical space. More...
bool | get_vexpand_set () const
| Gets whether set_vexpand() has been used to explicitly set the expand flag on this widget. More...
void | set_vexpand_set (bool set=true)
| Sets whether the vexpand flag (see get_vexpand()) will be used. More...
void | queue_compute_expand ()
| Mark widget as needing to recompute its expand flags. More...
bool | compute_expand (Orientation orientation)
| Computes whether a container should give this widget extra space when possible. More...
bool | get_support_multidevice () const
| Returns `true` if widget is multiple pointer aware. More...
void | set_support_multidevice (bool support_multidevice=true)
| Enables or disables multiple pointer awareness. More...
Glib::RefPtr< Atk::Object > | get_accessible ()
| Returns the accessible object that describes the widget to an assistive technology. More...
Glib::RefPtr< const Atk::Object > | get_accessible () const
| Returns the accessible object that describes the widget to an assistive technology. More...
Align | get_halign () const
| Gets the value of the Gtk::Widget::property_halign() property. More...
void | set_halign (Align align)
| Sets the horizontal alignment of widget. More...
Align | get_valign () const
| Gets the value of the Gtk::Widget::property_valign() property. More...
Align | get_valign_with_baseline () const
| Gets the value of the Gtk::Widget::property_valign() property, including Gtk::ALIGN_BASELINE. More...
void | set_valign (Align align)
| Sets the vertical alignment of widget. More...
int | get_margin_left () const
| Gets the value of the Gtk::Widget::property_margin_left() property. More...
void | set_margin_left (int margin)
| Sets the left margin of widget. More...
int | get_margin_right () const
| Gets the value of the Gtk::Widget::property_margin_right() property. More...
void | set_margin_right (int margin)
| Sets the right margin of widget. More...
int | get_margin_start () const
| Gets the value of the Gtk::Widget::property_margin_start() property. More...
void | set_margin_start (int margin)
| Sets the start margin of widget. More...
int | get_margin_end () const
| Gets the value of the Gtk::Widget::property_margin_end() property. More...
void | set_margin_end (int margin)
| Sets the end margin of widget. More...
int | get_margin_top () const
| Gets the value of the Gtk::Widget::property_margin_top() property. More...
void | set_margin_top (int margin)
| Sets the top margin of widget. More...
int | get_margin_bottom () const
| Gets the value of the Gtk::Widget::property_margin_bottom() property. More...
void | set_margin_bottom (int margin)
| Sets the bottom margin of widget. More...
Gdk::EventMask | get_events () const
| Returns the event mask (see Gdk::EventMask) for the widget. More...
Gdk::EventMask | get_device_events (const Glib::RefPtr< const Gdk::Device >& device) const
| Returns the events mask for the widget corresponding to an specific device. More...
void | get_pointer (int& x, int& y) const
| Obtains the location of the mouse pointer in widget coordinates. More...
bool | is_ancestor (Widget& ancestor) const
| Determines whether widget is somewhere inside ancestor, possibly with intermediate containers. More...
bool | translate_coordinates (Widget& dest_widget, int src_x, int src_y, int& dest_x, int& dest_y)
| Translate coordinates relative to src_widget’s allocation to coordinates relative to dest_widget’s allocations. More...
void | override_color (const Gdk::RGBA& color, StateFlags state=STATE_FLAG_NORMAL)
| Sets the color to use for a widget. More...
void | unset_color (StateFlags state=STATE_FLAG_NORMAL)
| Undoes the effect of previous calls to override_color(). More...
void | override_background_color (const Gdk::RGBA& color, StateFlags state=STATE_FLAG_NORMAL)
| Sets the background color to use for a widget. More...
void | unset_background_color (StateFlags state=STATE_FLAG_NORMAL)
| Undoes the effect of previous calls to override_background_color(). More...
void | override_font (const Pango::FontDescription& font_desc)
| Sets the font to use for a widget. More...
void | unset_font ()
| Undoes the effect of previous calls to override_font(). More...
void | override_symbolic_color (const Glib::ustring& name, const Gdk::RGBA& color)
| Sets a symbolic color for a widget. More...
void | unset_symbolic_color (const Glib::ustring& name)
| Undoes the effect of previous calls to override_symbolic_color(). More...
void | override_cursor (const Gdk::RGBA& cursor, const Gdk::RGBA& secondary_cursor)
| Sets the cursor color to use in a widget, overriding the cursor-color and secondary-cursor-color style properties. More...
void | unset_cursor ()
| Undoes the effect of previous calls to override_cursor(). More...
void | reset_style ()
| Updates the style context of widget and all descendants by updating its widget path. More...
template<class PropertyType >
void | get_style_property (const Glib::ustring& the_property_name, PropertyType& value) const
| Gets the value of a style property of widget. More...
Glib::RefPtr< Pango::Context > | create_pango_context ()
| Creates a new Pango::Context with the appropriate font map, font options, font description, and base direction for drawing text for this widget. More...
Glib::RefPtr< Pango::Context > | get_pango_context ()
| Gets a Pango::Context with the appropriate font map, font description, and base direction for this widget. More...
Glib::RefPtr< Pango::Layout > | create_pango_layout (const Glib::ustring& text)
| Creates a new Pango::Layout with the appropriate font map, font description, and base direction for drawing text for this widget. More...
Glib::RefPtr< Gdk::Pixbuf > | render_icon_pixbuf (const StockID& stock_id, IconSize size)
| A convenience function that uses the theme engine and style settings for widget to look up stock_id and render it to a pixbuf. More...
void | set_composite_name (const Glib::ustring& name)
| Sets a widgets composite name. More...
void | unset_composite_name ()
Glib::ustring | get_composite_name () const
| Obtains the composite name of a widget. More...
void | set_direction (TextDirection dir)
| Sets the reading direction on a particular widget. More...
TextDirection | get_direction () const
| Gets the reading direction for a particular widget. More...
void | shape_combine_region (const ::Cairo::RefPtr< const ::Cairo::Region >& region)
| Sets a shape for this widget’s GDK window. More...
void | input_shape_combine_region (const ::Cairo::RefPtr< const ::Cairo::Region >& region)
| Sets an input shape for this widget’s GDK window. More...
WidgetPath | get_path () const
| Returns the Gtk::WidgetPath representing widget, if the widget is not connected to a toplevel widget, a partial path will be created. More...
std::vector< Widget* > | list_mnemonic_labels ()
| Returns a newly allocated list of the widgets, normally labels, for which this widget is the target of a mnemonic (see for example, Gtk::Label::set_mnemonic_widget()). More...
std::vector< const Widget* > | list_mnemonic_labels () const
| Returns a newly allocated list of the widgets, normally labels, for which this widget is the target of a mnemonic (see for example, Gtk::Label::set_mnemonic_widget()). More...
void | add_mnemonic_label (Widget& label)
| Adds a widget to the list of mnemonic labels for this widget. More...
void | remove_mnemonic_label (Widget& label)
| Removes a widget from the list of mnemonic labels for this widget. More...
void | drag_get_data (const Glib::RefPtr< Gdk::DragContext >& context, const Glib::ustring& target, guint32 time)
void | drag_highlight ()
void | drag_unhighlight ()
void | drag_dest_set (DestDefaults flags=DestDefaults(0), Gdk::DragAction actions=Gdk::DragAction(0))
void | drag_dest_set (const std::vector< TargetEntry >& targets, DestDefaults flags=DEST_DEFAULT_ALL, Gdk::DragAction actions=Gdk::ACTION_COPY)
void | drag_dest_set_proxy (const Glib::RefPtr< Gdk::Window >& proxy_window, Gdk::DragProtocol protocol, bool use_coordinates)
void | drag_dest_unset ()
Glib::ustring | drag_dest_find_target (const Glib::RefPtr< Gdk::DragContext >& context, const Glib::RefPtr< TargetList >& target_list) const
| Looks for a match between context->targets and the dest_target_list, returning the first matching target, otherwise returning Gdk::NONE. More...
Glib::ustring | drag_dest_find_target (const Glib::RefPtr< Gdk::DragContext >& context) const
Glib::RefPtr< TargetList > | drag_dest_get_target_list ()
Glib::RefPtr< const TargetList > | drag_dest_get_target_list () const
void | drag_dest_set_target_list (const Glib::RefPtr< TargetList >& target_list)
void | drag_dest_add_text_targets ()
void | drag_dest_add_image_targets ()
void | drag_dest_add_uri_targets ()
void | drag_source_set (const std::vector< TargetEntry >& targets, Gdk::ModifierType start_button_mask=Gdk::MODIFIER_MASK, Gdk::DragAction actions=Gdk::ACTION_COPY)
void | drag_source_unset ()
void | drag_source_set_icon (const Glib::RefPtr< Gdk::Pixbuf >& pixbuf)
void | drag_source_set_icon (const StockID& stock_id)
| Sets the icon that will be used for drags from a particular source to a stock icon. More...
void | drag_source_set_icon (const Glib::ustring& icon_name)
| Sets the icon that will be used for drags from a particular source to a themed icon. More...
void | drag_source_add_text_targets ()
| Add the text targets supported by Gtk::Selection to the target list of the drag source. More...
void | drag_source_add_uri_targets ()
void | drag_source_add_image_targets ()
Glib::RefPtr< Gdk::DragContext > | drag_begin (const Glib::RefPtr< TargetList >& targets, Gdk::DragAction actions, int button, GdkEvent* gdk_event)
Glib::RefPtr< Gdk::DragContext > | drag_begin (const Glib::RefPtr< TargetList >& targets, Gdk::DragAction actions, int button, GdkEvent* gdk_event, int x, int y)
bool | drag_check_threshold (int start_x, int start_y, int current_x, int current_y)
void | drag_set_as_icon (const Glib::RefPtr< Gdk::DragContext >& context, int hot_x, int hot_y)
void | queue_resize_no_redraw ()
| This function works like queue_resize(), except that the widget is not invalidated. More...
bool | get_no_show_all () const
| Returns the current value of the Gtk::Widget::property_no_show_all() property, which determines whether calls to show_all() will affect this widget. More...
void | set_no_show_all (bool no_show_all=true)
| Sets the Gtk::Widget::property_no_show_all() property, which determines whether calls to show_all() will affect this widget. More...
void | set_parent (Widget& parent)
| This function is useful only when implementing subclasses of Gtk::Container. More...
void | unparent ()
| This function is only for use in widget implementations. More...
void | map ()
| This function is only for use in widget implementations. More...
void | unmap ()
| This function is only for use in widget implementations. More...
void | draw_insertion_cursor (const ::Cairo::RefPtr< ::Cairo::Context >& cr, const Gdk::Rectangle& location, bool is_primary, TextDirection direction, bool draw_arrow=true)
| Draws a text caret on cr at location. More...
void | set_tooltip_window (Window& custom_window)
| Replaces the default, usually yellow, window used for displaying tooltips with custom_window. More...
Window* | get_tooltip_window ()
| Returns the Gtk::Window of the current tooltip. More...
void | trigger_tooltip_query ()
| Triggers a tooltip query on the display where the toplevel of widget is located. More...
void | set_tooltip_text (const Glib::ustring& text)
| Sets text as the contents of the tooltip. More...
Glib::ustring | get_tooltip_text () const
| Gets the contents of the tooltip for widget. More...
void | set_tooltip_markup (const Glib::ustring& markup)
| Sets markup as the contents of the tooltip, which is marked up with the Pango text markup language. More...
Glib::ustring | get_tooltip_markup () const
| Gets the contents of the tooltip for widget. More...
void | set_has_tooltip (bool has_tooltip=TRUE)
| Sets the has-tooltip property on widget to has_tooltip. More...
bool | get_has_tooltip () const
| Returns the current value of the has-tooltip property. More...
int | get_width () const
int | get_height () const
bool | is_composited () const
| Whether widget can rely on having its alpha channel drawn correctly. More...
bool | in_destruction () const
| Returns whether the widget is currently being destroyed. More...
Glib::RefPtr< StyleContext > | get_style_context ()
| Returns the style context associated to widget. More...
Glib::RefPtr< Gtk::StyleContext > | get_style_context () const
| Returns the style context associated to widget. More...
Gdk::ModifierType | get_modifier_mask (Gdk::ModifierIntent intent)
| Returns the modifier mask the widget’s windowing system backend uses for a particular purpose. More...
void | insert_action_group (const Glib::ustring& name, const Glib::RefPtr< Gio::ActionGroup >& group)
| Inserts group into widget. More...
void | remove_action_group (const Glib::ustring& name)
| Removes a group from the widget. More...
Glib::RefPtr< Gio::ActionGroup > | get_action_group (const Glib::ustring& prefix)
| Retrieves the ActionGroup that was registered using prefix. More...
Glib::RefPtr< const Gio::ActionGroup > | get_action_group (const Glib::ustring& prefix) const
| Retrieves the ActionGroup that was registered using prefix. More...
std::vector< Glib::ustring > | list_action_prefixes () const
| Retrieves a `0`-terminated array of strings containing the prefixes of ActionGroup's available to widget. More...
Glib::SignalProxy0< void > | signal_show ()
Glib::SignalProxy0< void > | signal_hide ()
Glib::SignalProxy0< void > | signal_map ()
| Emitted on mapping of a widget to the screen. More...
Glib::SignalProxy0< void > | signal_unmap ()
Glib::SignalProxy0< void > | signal_realize ()
| Emitted on realization of a widget. More...
Glib::SignalProxy0< void > | signal_unrealize ()
Glib::SignalProxy1< void, Allocation& > | signal_size_allocate ()
Glib::SignalProxy1< void, Gtk::StateType > | signal_state_changed ()
Glib::SignalProxy1< void, Gtk::StateFlags > | signal_state_flags_changed ()
Glib::SignalProxy1< void, Widget* > | signal_parent_changed ()
| Informs objects that their parent changed. More...
Glib::SignalProxy1< void, Widget* > | signal_hierarchy_changed ()
Glib::SignalProxy0< void > | signal_style_updated ()
Glib::SignalProxy1< void, TextDirection > | signal_direction_changed ()
Glib::SignalProxy1< void, bool > | signal_grab_notify ()
Glib::SignalProxy1< void, GParamSpec* > | signal_child_notify ()
Glib::SignalProxy1< bool, bool > | signal_mnemonic_activate ()
Glib::SignalProxy0< void > | signal_grab_focus ()
Glib::SignalProxy1< bool, DirectionType > | signal_focus ()
Glib::SignalProxy1< bool, GdkEvent* > | signal_event ()
Glib::SignalProxy1< void, GdkEvent* > | signal_event_after ()
Glib::SignalProxy1< bool, GdkEventButton* > | signal_button_press_event ()
| Event triggered by user pressing button. More...
Glib::SignalProxy1< bool, GdkEventButton* > | signal_button_release_event ()
| Event triggered by user releasing button. More...
Glib::SignalProxy1< bool, GdkEventScroll* > | signal_scroll_event ()
Glib::SignalProxy1< bool, GdkEventMotion* > | signal_motion_notify_event ()
| Event triggered by user moving pointer. More...
Glib::SignalProxy1< bool, GdkEventAny* > | signal_delete_event ()
Glib::SignalProxy1< bool, const ::Cairo::RefPtr< ::Cairo::Context >& > | signal_draw ()
Glib::SignalProxy1< bool, GdkEventKey* > | signal_key_press_event ()
| Event triggered by a key press will widget has focus. More...
Glib::SignalProxy1< bool, GdkEventKey* > | signal_key_release_event ()
| Event triggered by a key release will widget has focus. More...
Glib::SignalProxy1< bool, GdkEventCrossing* > | signal_enter_notify_event ()
| Event triggered by pointer entering widget area. More...
Glib::SignalProxy1< bool, GdkEventCrossing* > | signal_leave_notify_event ()
| Event triggered by pointer leaving widget area. More...
Glib::SignalProxy1< bool, GdkEventConfigure* > | signal_configure_event ()
| Event triggered by a window resizing. More...
Glib::SignalProxy1< bool, GdkEventFocus* > | signal_focus_in_event ()
Glib::SignalProxy1< bool, GdkEventFocus* > | signal_focus_out_event ()
Glib::SignalProxy1< bool, GdkEventAny* > | signal_map_event ()
Glib::SignalProxy1< bool, GdkEventAny* > | signal_unmap_event ()
Glib::SignalProxy1< bool, GdkEventProperty* > | signal_property_notify_event ()
Glib::SignalProxy1< bool, GdkEventSelection* > | signal_selection_clear_event ()
Glib::SignalProxy1< bool, GdkEventSelection* > | signal_selection_request_event ()
Glib::SignalProxy1< bool, GdkEventSelection* > | signal_selection_notify_event ()
Glib::SignalProxy1< bool, GdkEventProximity* > | signal_proximity_in_event ()
Glib::SignalProxy1< bool, GdkEventProximity* > | signal_proximity_out_event ()
Glib::SignalProxy1< bool, GdkEventVisibility* > | signal_visibility_notify_event ()
Glib::SignalProxy1< bool, GdkEventWindowState* > | signal_window_state_event ()
Glib::SignalProxy3< void, SelectionData&, guint, guint > | signal_selection_get ()
Glib::SignalProxy2< void, const SelectionData&, guint > | signal_selection_received ()
Glib::SignalProxy1< void, const Glib::RefPtr< Gdk::DragContext >& > | signal_drag_begin ()
Glib::SignalProxy1< void, const Glib::RefPtr< Gdk::DragContext >& > | signal_drag_end ()
Glib::SignalProxy4< void, const Glib::RefPtr< Gdk::DragContext >&, SelectionData&, guint, guint > | signal_drag_data_get ()
Glib::SignalProxy1< void, const Glib::RefPtr< Gdk::DragContext >& > | signal_drag_data_delete ()
Glib::SignalProxy2< bool, const Glib::RefPtr< Gdk::DragContext >&, DragResult > | signal_drag_failed ()
Glib::SignalProxy2< void, const Glib::RefPtr< Gdk::DragContext >&, guint > | signal_drag_leave ()
Glib::SignalProxy4< bool, const Glib::RefPtr< Gdk::DragContext >&, int, int, guint > | signal_drag_motion ()
Glib::SignalProxy4< bool, const Glib::RefPtr< Gdk::DragContext >&, int, int, guint > | signal_drag_drop ()
Glib::SignalProxy6< void, const Glib::RefPtr< Gdk::DragContext >&, int, int, const SelectionData&, guint, guint > | signal_drag_data_received ()
Glib::SignalProxy1< void, const Glib::RefPtr< Gdk::Screen >& > | signal_screen_changed ()
Glib::SignalProxy0< void > | signal_composited_changed ()
Glib::SignalProxy0< bool > | signal_popup_menu ()
Glib::SignalProxy4< bool, int, int, bool, const Glib::RefPtr< Tooltip >& > | signal_query_tooltip ()
Glib::SignalProxy1< bool, GdkEventGrabBroken* > | signal_grab_broken_event ()
Glib::SignalProxy1< bool, GdkEventExpose* > | signal_damage_event ()
Glib::SignalProxy1< bool, GdkEventTouch* > | signal_touch_event ()
Glib::PropertyProxy< Glib::ustring > | property_name ()
| The name of the widget. More...
Glib::PropertyProxy_ReadOnly< Glib::ustring > | property_name () const
| The name of the widget. More...
Glib::PropertyProxy< Container* > | property_parent ()
| The parent widget of this widget. More...
Glib::PropertyProxy_ReadOnly< Container* > | property_parent () const
| The parent widget of this widget. More...
Glib::PropertyProxy< int > | property_width_request ()
| Override for width request of the widget, or -1 if natural request should be used. More...
Glib::PropertyProxy_ReadOnly< int > | property_width_request () const
| Override for width request of the widget, or -1 if natural request should be used. More...
Glib::PropertyProxy< int > | property_height_request ()
| Override for height request of the widget, or -1 if natural request should be used. More...
Glib::PropertyProxy_ReadOnly< int > | property_height_request () const
| Override for height request of the widget, or -1 if natural request should be used. More...
Glib::PropertyProxy< bool > | property_visible ()
| Whether the widget is visible. More...
Glib::PropertyProxy_ReadOnly< bool > | property_visible () const
| Whether the widget is visible. More...
Glib::PropertyProxy< bool > | property_sensitive ()
| Whether the widget responds to input. More...
Glib::PropertyProxy_ReadOnly< bool > | property_sensitive () const
| Whether the widget responds to input. More...
Glib::PropertyProxy< bool > | property_app_paintable ()
| Whether the application will paint directly on the widget. More...
Glib::PropertyProxy_ReadOnly< bool > | property_app_paintable () const
| Whether the application will paint directly on the widget. More...
Glib::PropertyProxy< bool > | property_can_focus ()
| Whether the widget can accept the input focus. More...
Glib::PropertyProxy_ReadOnly< bool > | property_can_focus () const
| Whether the widget can accept the input focus. More...
Glib::PropertyProxy< bool > | property_has_focus ()
| Whether the widget has the input focus. More...
Glib::PropertyProxy_ReadOnly< bool > | property_has_focus () const
| Whether the widget has the input focus. More...
Glib::PropertyProxy< bool > | property_is_focus ()
| Whether the widget is the focus widget within the toplevel. More...
Glib::PropertyProxy_ReadOnly< bool > | property_is_focus () const
| Whether the widget is the focus widget within the toplevel. More...
Glib::PropertyProxy< bool > | property_can_default ()
| Whether the widget can be the default widget. More...
Glib::PropertyProxy_ReadOnly< bool > | property_can_default () const
| Whether the widget can be the default widget. More...
Glib::PropertyProxy< bool > | property_has_default ()
| Whether the widget is the default widget. More...
Glib::PropertyProxy_ReadOnly< bool > | property_has_default () const
| Whether the widget is the default widget. More...
Glib::PropertyProxy< bool > | property_receives_default ()
| If TRUE, the widget will receive the default action when it is focused. More...
Glib::PropertyProxy_ReadOnly< bool > | property_receives_default () const
| If TRUE, the widget will receive the default action when it is focused. More...
Glib::PropertyProxy_ReadOnly< bool > | property_composite_child () const
| Whether the widget is part of a composite widget. More...
Glib::PropertyProxy< Glib::RefPtr< Style > > | property_style ()
| The style of the widget, which contains information about how it will look (colors etc). More...
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Style > > | property_style () const
| The style of the widget, which contains information about how it will look (colors etc). More...
Glib::PropertyProxy< Gdk::EventMask > | property_events ()
| The event mask that decides what kind of GdkEvents this widget gets. More...
Glib::PropertyProxy_ReadOnly< Gdk::EventMask > | property_events () const
| The event mask that decides what kind of GdkEvents this widget gets. More...
Glib::PropertyProxy< bool > | property_has_tooltip ()
| Enables or disables the emission of Gtk::Widget::signal_query_tooltip() on widget. More...
Glib::PropertyProxy_ReadOnly< bool > | property_has_tooltip () const
| Enables or disables the emission of Gtk::Widget::signal_query_tooltip() on widget. More...
Glib::PropertyProxy< Glib::ustring > | property_tooltip_markup ()
| Sets the text of tooltip to be the given string, which is marked up with the [Pango text markup language][PangoMarkupFormat]. More...
Glib::PropertyProxy_ReadOnly< Glib::ustring > | property_tooltip_markup () const
| Sets the text of tooltip to be the given string, which is marked up with the [Pango text markup language][PangoMarkupFormat]. More...
Glib::PropertyProxy< Glib::ustring > | property_tooltip_text ()
| Sets the text of tooltip to be the given string. More...
Glib::PropertyProxy_ReadOnly< Glib::ustring > | property_tooltip_text () const
| Sets the text of tooltip to be the given string. More...
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Gdk::Window > > | property_window () const
| The widget's window if it is realized, `0` otherwise. More...
Glib::PropertyProxy< bool > | property_no_show_all ()
| Whether gtk_widget_show_all() should not affect this widget. More...
Glib::PropertyProxy_ReadOnly< bool > | property_no_show_all () const
| Whether gtk_widget_show_all() should not affect this widget. More...
Glib::PropertyProxy< bool > | property_double_buffered ()
| Whether the widget is double buffered. More...
Glib::PropertyProxy_ReadOnly< bool > | property_double_buffered () const
| Whether the widget is double buffered. More...
Glib::PropertyProxy< Align > | property_halign ()
| How to distribute horizontal space if widget gets extra space, see Gtk::Align. More...
Glib::PropertyProxy_ReadOnly< Align > | property_halign () const
| How to distribute horizontal space if widget gets extra space, see Gtk::Align. More...
Glib::PropertyProxy< Align > | property_valign ()
| How to distribute vertical space if widget gets extra space, see Gtk::Align. More...
Glib::PropertyProxy_ReadOnly< Align > | property_valign () const
| How to distribute vertical space if widget gets extra space, see Gtk::Align. More...
Glib::PropertyProxy< int > | property_margin_left ()
| Margin on left side of widget. More...
Glib::PropertyProxy_ReadOnly< int > | property_margin_left () const
| Margin on left side of widget. More...
Glib::PropertyProxy< int > | property_margin_right ()
| Margin on right side of widget. More...
Glib::PropertyProxy_ReadOnly< int > | property_margin_right () const
| Margin on right side of widget. More...
Glib::PropertyProxy< int > | property_margin_start ()
| Margin on start of widget, horizontally. More...
Glib::PropertyProxy_ReadOnly< int > | property_margin_start () const
| Margin on start of widget, horizontally. More...
Glib::PropertyProxy< int > | property_margin_end ()
| Margin on end of widget, horizontally. More...
Glib::PropertyProxy_ReadOnly< int > | property_margin_end () const
| Margin on end of widget, horizontally. More...
Glib::PropertyProxy< int > | property_margin_top ()
| Margin on top side of widget. More...
Glib::PropertyProxy_ReadOnly< int > | property_margin_top () const
| Margin on top side of widget. More...
Glib::PropertyProxy< int > | property_margin_bottom ()
| Margin on bottom side of widget. More...
Glib::PropertyProxy_ReadOnly< int > | property_margin_bottom () const
| Margin on bottom side of widget. More...
Glib::PropertyProxy< int > | property_margin ()
| Sets all four sides' margin at once. More...
Glib::PropertyProxy_ReadOnly< int > | property_margin () const
| Sets all four sides' margin at once. More...
Glib::PropertyProxy< bool > | property_hexpand ()
| Whether to expand horizontally. More...
Glib::PropertyProxy_ReadOnly< bool > | property_hexpand () const
| Whether to expand horizontally. More...
Glib::PropertyProxy< bool > | property_hexpand_set ()
| Whether to use the Gtk::Widget::property_hexpand() property. More...
Glib::PropertyProxy_ReadOnly< bool > | property_hexpand_set () const
| Whether to use the Gtk::Widget::property_hexpand() property. More...
Glib::PropertyProxy< bool > | property_vexpand ()
| Whether to expand vertically. More...
Glib::PropertyProxy_ReadOnly< bool > | property_vexpand () const
| Whether to expand vertically. More...
Glib::PropertyProxy< bool > | property_vexpand_set ()
| Whether to use the Gtk::Widget::property_vexpand() property. More...
Glib::PropertyProxy_ReadOnly< bool > | property_vexpand_set () const
| Whether to use the Gtk::Widget::property_vexpand() property. More...
Glib::PropertyProxy< bool > | property_expand ()
| Whether to expand in both directions. More...
Glib::PropertyProxy_ReadOnly< bool > | property_expand () const
| Whether to expand in both directions. More...
Glib::PropertyProxy< double > | property_opacity ()
| The requested opacity of the widget. More...
Glib::PropertyProxy_ReadOnly< double > | property_opacity () const
| The requested opacity of the widget. More...
Glib::PropertyProxy_ReadOnly< int > | property_scale_factor () const
| The scale factor of the widget. More...
Public Member Functions inherited from Gtk::Object
| Object (Object&& src) noexcept
Object& | operator= (Object&& src) noexcept
virtual | ~Object () noexcept
GObject* | gobj ()
| Provides access to the underlying C GtkObject. More...
const GObject* | gobj () const
| Provides access to the underlying C GtkObject. More...
Public Member Functions inherited from Glib::Object
| Object (const Object &)=delete
Object & | operator= (const Object &)=delete
| Object (Object &&src) noexcept
Object & | operator= (Object &&src) noexcept
void * | get_data (const QueryQuark &key)
void | set_data (const Quark &key, void *data)
void | set_data (const Quark &key, void *data, DestroyNotify notify)
void | remove_data (const QueryQuark &quark)
void * | steal_data (const QueryQuark &quark)
Glib::RefPtr< Glib::Object > | wrap (GObject *object, bool take_copy=false)
Public Member Functions inherited from Glib::ObjectBase
| ObjectBase (const ObjectBase &)=delete
ObjectBase & | operator= (const ObjectBase &)=delete
void | set_property_value (const Glib::ustring &property_name, const Glib::ValueBase &value)
void | get_property_value (const Glib::ustring &property_name, Glib::ValueBase &value) const
void | set_property (const Glib::ustring &property_name, const PropertyType &value)
void | get_property (const Glib::ustring &property_name, PropertyType &value) const
void | connect_property_changed (const Glib::ustring &property_name, const sigc::slot< void > &slot)
sigc::connection | connect_property_changed_with_return (const Glib::ustring &property_name, const sigc::slot< void > &slot)
void | freeze_notify ()
void | thaw_notify ()
virtual void | reference () const
virtual void | unreference () const
GObject * | gobj ()
const GObject * | gobj () const
GObject * | gobj_copy () const
Public Member Functions inherited from sigc::trackable
| trackable ()
| trackable (const trackable &src)
| trackable (trackable &&src) noexcept
| ~trackable ()
void | add_destroy_notify_callback (void *data, func_destroy_notify func) const
void | notify_callbacks ()
trackable & | operator= (const trackable &src)
trackable & | operator= (trackable &&src) noexcept
void | remove_destroy_notify_callback (void *data) const
Public Member Functions inherited from Gtk::Buildable
| Buildable (Buildable&& src) noexcept
Buildable& | operator= (Buildable&& src) noexcept
virtual | ~Buildable () noexcept
GtkBuildable* | gobj ()
| Provides access to the underlying C GObject. More...
const GtkBuildable* | gobj () const
| Provides access to the underlying C GObject. More...
void | set_name (const Glib::ustring& name)
| Sets the name of the buildable object. More...
Glib::ustring | get_name () const
| Gets the name of the buildable object. More...
Public Member Functions inherited from Glib::Interface
| Interface ()
| Interface (Interface &&src) noexcept
Interface & | operator= (Interface &&src) noexcept
| Interface (const Glib::Interface_Class &interface_class)
| Interface (GObject *castitem)
virtual | ~Interface () noexcept
| Interface (const Interface &)=delete
Interface & | operator= (const Interface &)=delete
GObject * | gobj ()
const GObject * | gobj () const
Public Member Functions inherited from Atk::Implementor
| Implementor (Implementor &&src) noexcept
Implementor & | operator= (Implementor &&src) noexcept
virtual | ~Implementor () noexcept
AtkImplementor * | gobj ()
const AtkImplementor * | gobj () const
Glib::RefPtr< Atk::Implementor > | wrap (AtkImplementor *object, bool take_copy=false)

## Static Public Member Functions

static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...
Static Public Member Functions inherited from Gtk::Range
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...
Static Public Member Functions inherited from Gtk::Widget
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...
static Widget* | get_current_modal_grab ()
| Retrieve the widget which is currently grabbing all events. More...
static void | push_composite_child ()
| Makes all newly-created widgets as composite children until the corresponding pop_composite_child() call. More...
static void | pop_composite_child ()
| Cancels the effect of a previous call to push_composite_child(). More...
static void | set_default_direction (TextDirection dir)
| Sets the default reading direction for widgets where the direction has not been explicitly set by set_direction(). More...
static TextDirection | get_default_direction ()
| Obtains the current default reading direction. More...
static Widget* | drag_get_source_widget (const Glib::RefPtr< Gdk::DragContext >& context)
Static Public Member Functions inherited from Gtk::Buildable
static void | add_interface (GType gtype_implementer)
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...
Static Public Member Functions inherited from Atk::Implementor
static void | add_interface (GType gtype_implementer)
static GType | get_type ()

## Protected Member Functions

virtual Glib::ustring | on_format_value (double value)
| This is a default handler for the signal signal_format_value(). More...
virtual void | draw_value_vfunc ()
virtual int | calc_digits_ (double step) const
Protected Member Functions inherited from Gtk::Range
virtual void | on_value_changed ()
| This is a default handler for the signal signal_value_changed(). More...
virtual void | on_adjust_bounds (double new_value)
| This is a default handler for the signal signal_adjust_bounds(). More...
virtual void | on_move_slider (ScrollType scroll)
| This is a default handler for the signal signal_move_slider(). More...
virtual bool | on_change_value (ScrollType scroll, double new_value)
| This is a default handler for the signal signal_change_value(). More...
| Range ()
virtual void | get_range_border_vfunc (Gtk::Border& border) const
Protected Member Functions inherited from Gtk::Widget
virtual void | on_show ()
| This is a default handler for the signal signal_show(). More...
virtual void | on_hide ()
| This is a default handler for the signal signal_hide(). More...
virtual void | on_map ()
| This is a default handler for the signal signal_map(). More...
virtual void | on_unmap ()
| This is a default handler for the signal signal_unmap(). More...
virtual void | on_realize ()
| This is a default handler for the signal signal_realize(). More...
virtual void | on_unrealize ()
| This is a default handler for the signal signal_unrealize(). More...
virtual void | on_size_allocate (Allocation& allocation)
| This is a default handler for the signal signal_size_allocate(). More...
virtual void | on_state_changed (Gtk::StateType previous_state)
| This is a default handler for the signal signal_state_changed(). More...
virtual void | on_parent_changed (Widget* previous_parent)
| This is a default handler for the signal signal_parent_changed(). More...
virtual void | on_hierarchy_changed (Widget* previous_toplevel)
| This is a default handler for the signal signal_hierarchy_changed(). More...
virtual void | on_style_updated ()
| This is a default handler for the signal signal_style_updated(). More...
virtual void | on_direction_changed (TextDirection direction)
| This is a default handler for the signal signal_direction_changed(). More...
virtual void | on_grab_notify (bool was_grabbed)
| This is a default handler for the signal signal_grab_notify(). More...
virtual void | on_child_notify (GParamSpec* pspec)
| This is a default handler for the signal signal_child_notify(). More...
virtual bool | on_mnemonic_activate (bool group_cycling)
| This is a default handler for the signal signal_mnemonic_activate(). More...
virtual void | on_grab_focus ()
| This is a default handler for the signal signal_grab_focus(). More...
virtual bool | on_focus (DirectionType direction)
| This is a default handler for the signal signal_focus(). More...
virtual bool | on_event (GdkEvent* gdk_event)
| This is a default handler for the signal signal_event(). More...
virtual bool | on_button_press_event (GdkEventButton* button_event)
| This is a default handler for the signal signal_button_press_event(). More...
virtual bool | on_button_release_event (GdkEventButton* release_event)
| This is a default handler for the signal signal_button_release_event(). More...
virtual bool | on_scroll_event (GdkEventScroll* scroll_event)
| This is a default handler for the signal signal_scroll_event(). More...
virtual bool | on_motion_notify_event (GdkEventMotion* motion_event)
| This is a default handler for the signal signal_motion_notify_event(). More...
virtual bool | on_delete_event (GdkEventAny* any_event)
| This is a default handler for the signal signal_delete_event(). More...
virtual bool | on_draw (const ::Cairo::RefPtr< ::Cairo::Context >& cr)
| This is a default handler for the signal signal_draw(). More...
virtual bool | on_key_press_event (GdkEventKey* key_event)
| This is a default handler for the signal signal_key_press_event(). More...
virtual bool | on_key_release_event (GdkEventKey* key_event)
| This is a default handler for the signal signal_key_release_event(). More...
virtual bool | on_enter_notify_event (GdkEventCrossing* crossing_event)
| This is a default handler for the signal signal_enter_notify_event(). More...
virtual bool | on_leave_notify_event (GdkEventCrossing* crossing_event)
| This is a default handler for the signal signal_leave_notify_event(). More...
virtual bool | on_configure_event (GdkEventConfigure* configure_event)
| This is a default handler for the signal signal_configure_event(). More...
virtual bool | on_focus_in_event (GdkEventFocus* focus_event)
| This is a default handler for the signal signal_focus_in_event(). More...
virtual bool | on_focus_out_event (GdkEventFocus* gdk_event)
| This is a default handler for the signal signal_focus_out_event(). More...
virtual bool | on_map_event (GdkEventAny* any_event)
| This is a default handler for the signal signal_map_event(). More...
virtual bool | on_unmap_event (GdkEventAny* any_event)
| This is a default handler for the signal signal_unmap_event(). More...
virtual bool | on_property_notify_event (GdkEventProperty* property_event)
| This is a default handler for the signal signal_property_notify_event(). More...
virtual bool | on_selection_clear_event (GdkEventSelection* selection_event)
| This is a default handler for the signal signal_selection_clear_event(). More...
virtual bool | on_selection_request_event (GdkEventSelection* selection_event)
| This is a default handler for the signal signal_selection_request_event(). More...
virtual bool | on_selection_notify_event (GdkEventSelection* selection_event)
| This is a default handler for the signal signal_selection_notify_event(). More...
virtual bool | on_proximity_in_event (GdkEventProximity* proximity_event)
| This is a default handler for the signal signal_proximity_in_event(). More...
virtual bool | on_proximity_out_event (GdkEventProximity* proximity_event)
| This is a default handler for the signal signal_proximity_out_event(). More...
virtual bool | on_visibility_notify_event (GdkEventVisibility* visibility_event)
| This is a default handler for the signal signal_visibility_notify_event(). More...
virtual bool | on_window_state_event (GdkEventWindowState* window_state_event)
| This is a default handler for the signal signal_window_state_event(). More...
virtual void | on_selection_get (SelectionData& selection_data, guint info, guint time)
| This is a default handler for the signal signal_selection_get(). More...
virtual void | on_selection_received (const SelectionData& selection_data, guint time)
| This is a default handler for the signal signal_selection_received(). More...
virtual void | on_drag_begin (const Glib::RefPtr< Gdk::DragContext >& context)
| This is a default handler for the signal signal_drag_begin(). More...
virtual void | on_drag_end (const Glib::RefPtr< Gdk::DragContext >& context)
| This is a default handler for the signal signal_drag_end(). More...
virtual void | on_drag_data_get (const Glib::RefPtr< Gdk::DragContext >& context, SelectionData& selection_data, guint info, guint time)
| This is a default handler for the signal signal_drag_data_get(). More...
virtual void | on_drag_data_delete (const Glib::RefPtr< Gdk::DragContext >& context)
| This is a default handler for the signal signal_drag_data_delete(). More...
virtual void | on_drag_leave (const Glib::RefPtr< Gdk::DragContext >& context, guint time)
| This is a default handler for the signal signal_drag_leave(). More...
virtual bool | on_drag_motion (const Glib::RefPtr< Gdk::DragContext >& context, int x, int y, guint time)
| This is a default handler for the signal signal_drag_motion(). More...
virtual bool | on_drag_drop (const Glib::RefPtr< Gdk::DragContext >& context, int x, int y, guint time)
| This is a default handler for the signal signal_drag_drop(). More...
virtual void | on_drag_data_received (const Glib::RefPtr< Gdk::DragContext >& context, int x, int y, const SelectionData& selection_data, guint info, guint time)
| This is a default handler for the signal signal_drag_data_received(). More...
virtual void | on_screen_changed (const Glib::RefPtr< Gdk::Screen >& previous_screen)
| This is a default handler for the signal signal_screen_changed(). More...
virtual void | dispatch_child_properties_changed_vfunc (guint p1, GParamSpec** p2)
virtual void | show_all_vfunc ()
virtual Glib::RefPtr< Atk::Object > | get_accessible_vfunc ()
virtual SizeRequestMode | get_request_mode_vfunc () const
virtual void | get_preferred_width_vfunc (int& minimum_width, int& natural_width) const
virtual void | get_preferred_height_for_width_vfunc (int width, int& minimum_height, int& natural_height) const
virtual void | get_preferred_height_vfunc (int& minimum_height, int& natural_height) const
virtual void | get_preferred_width_for_height_vfunc (int height, int& minimum_width, int& natural_width) const
| Widget ()
void | realize ()
| Creates the GDK (windowing system) resources associated with a widget. More...
void | unrealize ()
| This function is only useful in widget implementations. More...
void | draw (const ::Cairo::RefPtr< ::Cairo::Context >& cr)
| Draws widget to cr. More...
void | set_mapped (bool mapped=true)
| Marks the widget as being realized. More...
void | set_realized (bool realized=true)
| Marks the widget as being realized. More...
void | set_has_window (bool has_window=true)
| Specifies whether widget has a Gdk::Window of its own. More...
void | set_window (const Glib::RefPtr< Gdk::Window >& window)
| Sets a widget's window. More...
void | transform_cairo_context_to_window (const ::Cairo::RefPtr< ::Cairo::Context >& cr, const Glib::RefPtr< const Gdk::Window >& window)
| Transforms the given cairo context cr from widget-relative coordinates to window-relative coordinates. More...
Requisition | get_requisition () const
| Retrieves the widget's requisition. More...
void | get_style_property_value (const Glib::ustring& the_property_name, Glib::ValueBase& value) const
| Gets the value of a style property of widget. More...
void | realize_if_needed ()
Protected Member Functions inherited from Glib::Object
| Object ()
| Object (const Glib::ConstructParams &construct_params)
| Object (GObject *castitem)
Protected Member Functions inherited from Glib::ObjectBase
| ObjectBase ()
| ObjectBase (const char *custom_type_name)
| ObjectBase (const std::type_info &custom_type_info)
| ObjectBase (ObjectBase &&src) noexcept
ObjectBase & | operator= (ObjectBase &&src) noexcept
virtual | ~ObjectBase () noexcept=0
void | initialize (GObject *castitem)
void | initialize_move (GObject *castitem, Glib::ObjectBase *previous_wrapper)
Protected Member Functions inherited from Gtk::Buildable
| Buildable ()
| You should derive from this class to use it. More...
Protected Member Functions inherited from Atk::Implementor
| Implementor ()
virtual Glib::RefPtr< Object > | ref_accessibile_vfunc ()

## Related Functions

(Note that these are not member functions.)
Gtk::Scale* | wrap (GtkScale* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...
Related Functions inherited from Gtk::Range
Gtk::Range* | wrap (GtkRange* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...
Related Functions inherited from Gtk::Widget
Gtk::Widget* | wrap (GtkWidget* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...
Related Functions inherited from Gtk::Buildable
Glib::RefPtr< Gtk::Buildable > | wrap (GtkBuildable* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...

## Additional Inherited Members

Public Types inherited from Glib::Object
typedef void(* | DestroyNotify) (gpointer data)
Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify | func_destroy_notify
Static Protected Member Functions inherited from Gtk::Widget
static bool | should_draw_window (const ::Cairo::RefPtr< const ::Cairo::Context >& cr, const Glib::RefPtr< const Gdk::Window >& window)
| This function is supposed to be called in Gtk::Widget::signal_draw() implementations for widgets that support multiple windows. More...

## Detailed Description

A slider widget for selecting a value from a range.

A Gtk::Scale is a slider control used to select a numeric value. To use it, you'll probably want to investigate the methods on its base class, Gtk::Range, in addition to the methods for Gtk::Scale itself. To set the value of a scale, you would normally use set_value(). To detect changes to the value, you would normally use signal_value_changed().

Note that using the same upper and lower bounds for the Scale (through the Range methods) will hide the slider itself. This is useful for applications that want to show an undeterminate value on the scale, without changing the layout of the application (such as movie or music players).

## Constructor & Destructor Documentation

Gtk::Scale::Scale | ( | Scale&& | src | ) |

noexcept

Gtk::Scale::Scale | ( | const Scale& |  | ) |

delete

virtual Gtk::Scale::~Scale | ( |  | ) |

virtual noexcept

Gtk::Scale::Scale | ( |  | ) |

Gtk::Scale::Scale | ( | Orientation | orientation | ) |

explicit

Since gtkmm 3.2:

Gtk::Scale::Scale | ( | const Glib::RefPtr< Adjustment >& | adjustment,
|  | Orientation | orientation = `ORIENTATION_HORIZONTAL`
| ) |  |

explicit

## Member Function Documentation

void Gtk::Scale::add_mark | ( | double | value,
|  | PositionType | position,
|  | const Glib::ustring & | markup
| ) |  |

Adds a mark at value.

A mark is indicated visually by drawing a tick mark next to the scale, and GTK+ makes it easy for the user to position the scale exactly at the marks value.

If markup is not `0`, text is shown next to the tick mark.

To remove marks from a scale, use clear_marks().

Since gtkmm 2.16:

Parameters

  value | The value at which the mark is placed, must be between the lower and upper limits of the scales’ adjustment.
  position | Where to draw the mark. For a horizontal scale, Gtk::POS_TOP and Gtk::POS_LEFT are drawn above the scale, anything else below. For a vertical scale, Gtk::POS_LEFT and Gtk::POS_TOP are drawn to the left of the scale, anything else to the right.
  markup | Text to be shown at the mark, using [Pango markup][PangoMarkupFormat], or `0`.

virtual int Gtk::Scale::calc_digits_ | ( | double | step | ) | const

protected virtual

void Gtk::Scale::clear_marks | ( |  | ) |

Removes any marks that have been added with add_mark().

Since gtkmm 2.16:

virtual void Gtk::Scale::draw_value_vfunc | ( |  | ) |

protected virtual

int Gtk::Scale::get_digits | ( |  | ) | const

Get the number of decimal digits.

bool Gtk::Scale::get_draw_value | ( |  | ) | const

Get whether the current value is displayed as a string next to the slider.

bool Gtk::Scale::get_has_origin | ( |  | ) | const

Returns whether the scale has an origin.

Since gtkmm 3.4:

Returns
  `true` if the scale has an origin.

Glib::RefPtr<Pango::Layout> Gtk::Scale::get_layout | ( |  | ) |

Gets the Pango::Layout used to display the scale.

The returned object is owned by the scale so does not need to be freed by the caller.

Since gtkmm 2.4:

Returns
  The Pango::Layout for this scale, or `0` if the Gtk::Scale::property_draw_value() property is `false`.

Glib::RefPtr<const Pango::Layout> Gtk::Scale::get_layout | ( |  | ) | const

Gets the Pango::Layout used to display the scale.

The returned object is owned by the scale so does not need to be freed by the caller.

Since gtkmm 2.4:

Returns
  The Pango::Layout for this scale, or `0` if the Gtk::Scale::property_draw_value() property is `false`.

void Gtk::Scale::get_layout_offsets | ( | int & | x,
|  | int & | y
| ) |  | const

Obtains the coordinates where the scale will draw the Pango::Layout representing the text in the scale.

Remember when using the Pango::Layout function you need to convert to and from pixels using PANGO_PIXELS() or Pango::SCALE.

If the Gtk::Scale::property_draw_value() property is `false`, the return values are undefined.

Since gtkmm 2.4:

Parameters

  x | Location to store X offset of layout, or `0`.
  y | Location to store Y offset of layout, or `0`.

static GType Gtk::Scale::get_type | ( |  | ) |

static

Get the GType for this class, for use with the underlying GObject type system.

PositionType Gtk::Scale::get_value_pos | ( |  | ) | const

Get the position in which the value is displayed.

GtkScale* Gtk::Scale::gobj | ( |  | ) |

inline

Provides access to the underlying C GtkObject.

const GtkScale* Gtk::Scale::gobj | ( |  | ) | const

inline

Provides access to the underlying C GtkObject.

virtual Glib::ustring Gtk::Scale::on_format_value | ( | double | value | ) |

protected virtual

This is a default handler for the signal signal_format_value().

Scale& Gtk::Scale::operator= | ( | Scale&& | src | ) |

noexcept

Scale& Gtk::Scale::operator= | ( | const Scale& |  | ) |

delete

Glib::PropertyProxy< int > Gtk::Scale::property_digits | ( |  | ) |

Number of displayed decimal digits.

The number of decimal places that are displayed in the value.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< int > Gtk::Scale::property_digits | ( |  | ) | const

The number of decimal places that are displayed in the value.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< bool > Gtk::Scale::property_draw_value | ( |  | ) |

Whether to draw the value as a string next to slider.

Whether the current value is displayed as a string next to the slider.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< bool > Gtk::Scale::property_draw_value | ( |  | ) | const

Whether the current value is displayed as a string next to the slider.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< bool > Gtk::Scale::property_has_origin | ( |  | ) |

Whether the scale has an origin.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< bool > Gtk::Scale::property_has_origin | ( |  | ) | const

Whether the scale has an origin.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< PositionType > Gtk::Scale::property_value_pos | ( |  | ) |

The position in which the value is displayed.

The position in which the current value is displayed.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< PositionType > Gtk::Scale::property_value_pos | ( |  | ) | const

The position in which the current value is displayed.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

void Gtk::Scale::set_digits | ( | int | digits | ) |

Set the number of decimal digits.

This also causes the adjustment to be rounded off so the retrieved value matches the value the user sees. Setting digits to 1 gives for example 1.0, 2 gives 1.00, etc.

void Gtk::Scale::set_draw_value | ( | bool | draw_value = `true` | ) |

Set whether the current value is displayed as a string next to the slider.

void Gtk::Scale::set_has_origin | ( | bool | has_origin = `true` | ) |

If has_origin is set to `true` (the default), the scale will highlight the part of the scale between the origin (bottom or left side) of the scale and the current value.

Since gtkmm 3.4:

Parameters

  has_origin | `true` if the scale has an origin.

void Gtk::Scale::set_value_pos | ( | PositionType | pos | ) |

Set the position in which the value is displayed.

Glib::SignalProxy1< Glib::ustring,double > Gtk::Scale::signal_format_value | ( |  | ) |

Slot Prototype:
  `Glib::ustring on_my_format_value(double value)`

Signal which allows you to change how the scale value is displayed. Connect a signal handler which returns an allocated string representing value. That string will then be used to display the scale's value.

Here's an example signal handler which displays a value 1.0 as with "-->1.0<--".

[C example ellipted]

Parameters

  value | The value to format.

Returns
  Allocated string representing value.

## Friends And Related Function Documentation

Gtk::Scale* wrap | ( | GtkScale * | object,
|  | bool | take_copy = `false`
| ) |  |

related

A Glib::wrap() method for this object.

Parameters

  object | The C instance.
  take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns
  A C++ instance that wraps this C instance.