Gtk – 4.0

Displays information about a program.

Presents contextual actions.

Activates a widget.

A model for a numeric value.

Collects the arguments that are needed to present a message to the user.

since: 4.10

Combines two shortcut triggers.

Matches an item when at least one of its filters matches.

The GtkAppChooserButton lets the user select an application.

deprecated: 4.10 

GtkAppChooserDialog shows a GtkAppChooserWidget inside a GtkDialog.

deprecated: 4.10 

GtkAppChooserWidget is a widget for selecting applications.

deprecated: 4.10 

A high-level API for writing applications.

A GtkWindow subclass that integrates with GtkApplication.

Preserves the aspect ratio of its child.

GtkAssistant is used to represent a complex as a series of steps.

deprecated: 4.10 

GtkAssistantPage is an auxiliary object used by GtkAssistant.

deprecated: 4.10 

Communicates with platform-specific assistive technologies API.

A layout manager for widgets with a single child.

A list model that wraps GBookmarkFile.

Evaluates a boolean expression to determine whether to include items.

Arranges child widgets into a single row or column.

Arranges children in a single row or column.

Reads XML descriptions of a user interface and instantiates the described objects.

A GtkBuilderScope implementation for the C language.

A GtkListItemFactory that creates widgets by instantiating GtkBuilder UI templates.

Calls a callback function when the button is clicked.

Displays a Gregorian calendar, one month at a time.

Invokes a callback.

A variant of GtkClosureExpression using a C closure.

An abstract class for laying out GtkCellRenderers.

deprecated: 4.10 

A cell area that renders GtkCellRenderers into a row or a column.

deprecated: 4.10 

Stores geometrical information for a series of rows in a GtkCellArea.

deprecated: 4.10 

An object for rendering a single cell.

deprecated: 4.10 

Renders a keyboard accelerator in a cell.

deprecated: 4.10 

Renders a combobox in a cell.

deprecated: 4.10 

Renders a pixbuf in a cell.

deprecated: 4.10 

Renders numbers as progress bars.

deprecated: 4.10 

Renders a spin button in a cell.

deprecated: 4.10 

Renders a spinning animation in a cell.

deprecated: 4.10 

Renders text in a cell.

deprecated: 4.10 

Renders a toggle button in a cell.

deprecated: 4.10 

A widget displaying a single row of a GtkTreeModel.

deprecated: 4.10 

Arranges three children in a row, keeping the middle child centered as well as possible.

Manages up to three children.

Places a label next to an indicator.

An expression using a custom GClosure to compute the value from its parameters.

The GtkColorButton allows to open a color chooser dialog to change the color.

deprecated: 4.10 

A dialog for choosing a color.

deprecated: 4.10 

The GtkColorChooserWidget widget lets the user select a color.

deprecated: 4.10 

Asynchronous API to present a color chooser dialog.

since: 4.10

Opens a color chooser dialog to select a color.

since: 4.10

Presents a large dynamic list of items using multiple columns with headers.

Represents items in a cell in GtkColumnView.

since: 4.12

GtkColumnViewColumn represents the columns being added to a GtkColumnView.

Configures how rows are displayed in a GtkColumnView.

since: 4.12

Sorts GtkColumnView columns.

since: 4.10

A GtkComboBox is a widget that allows the user to choose from a list of valid choices.

deprecated: 4.10 

A GtkComboBoxText is a simple variant of GtkComboBox for text-only use cases.

deprecated: 4.10 

A constant value in a GtkExpression.

Describes a constraint between attributes of two widgets, expressed as a linear equation.

An invisible layout element in a GtkConstraintLayout.

Uses constraints to describe relations between widgets.

GtkLayoutChild subclass for children in a GtkConstraintLayout.

A style provider for CSS.

Determines whether to include items with a callback.

Uses closures for size negotiation.

Sorts items via a callback function.

Dialogs are a convenient way to prompt the user for a small amount of input.

deprecated: 4.10 

A list model that wraps g_file_enumerate_children_async().

A GtkRoot implementation for drag icons.

An event controller to initiate Drag-And-Drop operations.

Allows drawing with cairo.

An event controller tracking the pointer during Drag-and-Drop operations.

Allows the user to choose an item from a list of options.

An event controller to receive Drag-and-Drop operations.

An event controller to receive Drag-and-Drop operations, asynchronously.

Allows users to edit the displayed text by switching to an “edit mode”.

Used by text widgets to let users insert Emoji characters.

A single-line text entry widget.

Holds the text that is displayed in a single-line text entry widget.

GtkEntryCompletion is an auxiliary object to provide completion functionality for GtkEntry.

deprecated: 4.10 

The base class for event controllers.

Tracks keyboard focus.

Provides access to key events.

Provides raw access to the event stream.

Tracks the pointer position.

Handles scroll events.

Matches an item when each of its filters matches.

Allows the user to reveal or conceal a child widget.

Provides a way to describe references to values.

GtkFileChooserDialog is a dialog suitable for use with “File Open” or “File Save” commands.

deprecated: 4.10 

GtkFileChooserNative is an abstraction of a dialog suitable for use with “File Open” or “File Save as” commands.

deprecated: 4.10 

GtkFileChooserWidget is a widget for choosing files.

deprecated: 4.10 

Asynchronous API to present a file chooser dialog.

since: 4.10

Filters files by name or mime type.

Asynchronous API to open a file with an application.

since: 4.10

Describes the filtering to be performed by a GtkFilterListModel.

A list model that filters the elements of another model.

Places its child widgets at fixed positions and with fixed sizes.

Places child widgets at fixed positions.

GtkLayoutChild subclass for children in a GtkFixedLayout.

A list model that concatenates other list models.

Puts child widgets in a reflowing grid.

The kind of widget that can be added to a GtkFlowBox.

The GtkFontButton allows to open a font chooser dialog to change the font.

deprecated: 4.10 

The GtkFontChooserDialog widget is a dialog for selecting a font.

deprecated: 4.10 

The GtkFontChooserWidget widget lets the user select a font.

deprecated: 4.10 

Asynchronous API to present a font chooser dialog.

since: 4.10

Opens a font chooser dialog to select a font.

since: 4.10

Surrounds its child with a decorative frame and an optional label.

The base class for gesture recognition.

Recognizes click gestures.

Recognizes drag gestures.

Recognizes long press gestures.

Recognizes pan gestures.

Recognizes 2-finger rotation gestures.

A GtkGesture subclass optimized for singe-touch and mouse gestures.

Recognizes tablet stylus input.

Recognizes swipe gestures.

Recognizes 2-finger pinch/zoom gestures.

Allows drawing with OpenGL.

Bypasses gsk rendering by passing the content of its child directly to the compositor.

since: 4.14

Arranges its child widgets in rows and columns.

Arranges child widgets in rows and columns.

GtkLayoutChild subclass for children in a GtkGridLayout.

Presents a large dynamic grid of items.

Creates a custom titlebar for a window.

Contains information found when looking up an icon in GtkIconTheme.

Loads themed icons.

GtkIconView is a widget which displays data in a grid of icons.

deprecated: 4.10 

Displays an image.

The interface for GTK input methods.

Supports compose sequences, dead keys and numeric Unicode input.

Supports switching between multiple input methods.

GtkInfoBar can be used to show messages to the user without a dialog.

deprecated: 4.10 

Shows text in a predefined area.

since: 4.8

Triggers when a specific keyval and modifiers are pressed.

Displays a small amount of text.

The base class for objects that are meant to hold layout properties.

Handles the preferred size and allocation for children of a widget.

Shows a level indicator.

A button with a hyperlink.

The abstract base class for GTK’s list widgets.

Shows a vertical list.

The kind of widget that can be added to a GtkListBox.

Used by list widgets to represent the headers they display.

since: 4.12

Used by list widgets to represent items in a GListModel.

Creates widgets for the items taken from a GListModel.

A list-like data structure that can be used with the GtkTreeView.

deprecated: 4.10 

Presents a large dynamic list of items.

GtkLockButton is a widget to obtain and revoke authorizations needed to operate the controls.

deprecated: 4.10 

A list model that maps the items in another model to different items.

Shows controls for video playback.

Implements the GtkMediaStream interface for files.

The integration point for media playback inside GTK.

Displays a popup when clicked.

GtkMessageDialog presents a dialog with some message text.

deprecated: 4.10 

Activates a widget with a mnemonic.

Triggers when a specific mnemonic is pressed.

Asks the user for passwords and other information required to mount a volume.

Base class for filters that combine multiple filters.

A selection model that allows selecting multiple elements.

Combines multiple sorters by trying them in turn.

Activates a named action.

Base class for platform dialogs that don’t use GtkDialog.

A GtkShortcutTrigger that never triggers.

A selection model that does not allow selecting anything.

Switches between children using tabs.

An auxiliary object used by GtkNotebook.

Does nothing.

Sorts items numerically.

A GObject value in a GtkExpression.

Places “overlay” widgets on top of a single main child.

The layout manager used by GtkOverlay.

GtkLayoutChild subclass for children in a GtkOverlayLayout.

Handles input from the pads found in drawing tablets.

Stores page size, orientation and margins for printing.

Presents a page setup dialog for platforms which don’t provide a native page setup dialog, like Unix.

Arranges its children in two panes, horizontally or vertically.

A GParamSpec for properties holding a GtkExpression.

A single-line text entry widget for entering passwords and other secrets.

A GtkEntryBuffer that locks the underlying memory to prevent it from being swapped to disk.

since: 4.4

Displays a GdkPaintable.

Presents a bubble-like popup.

A subclass of GtkPopover that implements menu behavior.

Presents a horizontal bar of items that pop up menus when clicked.

Encapsulates context information that is required when drawing pages for printing.

Asynchronous API to present a print dialog to the user.

since: 4.14

Represents a printer.

Represents a job that is sent to a printer.

High-level, portable printing API.

Collects the settings of a print dialog in a system-independent way.

A print dialog for platforms which don’t provide a native print dialog, like Unix.

Displays the progress of a long-running operation.

A GObject property value in a GtkExpression.

Base class for widgets which visualize an adjustment.

Manages and looks up recently used files.

Animates the transition of its child from invisible to visible.

Allows to select a numeric value with a slider control.

Provides a button which pops up a scale widget.

Shows a horizontal or vertical scrollbar.

Makes its child scrollable.

Reveals a search entry when search is started.

A single-line text entry widget for use as a search entry.

A list model that presents the selection from a GtkSelectionModel.

Draws a horizontal or vertical line to separate other widgets.

Provides a mechanism to share global settings between applications.

Describes a keyboard shortcut.

Encodes an action that can be triggered by a keyboard shortcut.

Manages keyboard shortcuts and their activation.

GtkShortcutLabel displays a single keyboard shortcut or gesture.

deprecated: 4.18 

A GtkShortcutsGroup represents a group of related keyboard shortcuts or gestures.

deprecated: 4.18 

A GtkShortcutsSection collects all the keyboard shortcuts and gestures for a major application mode.

deprecated: 4.18 

A GtkShortcutsShortcut represents a single keyboard shortcut or gesture with a short text.

deprecated: 4.18 

A GtkShortcutsWindow shows information about the keyboard shortcuts and gestures of an application.

deprecated: 4.18 

Tracks how a GtkShortcut can be activated.

Emits a signal on a widget.

A GtkListItemFactory that emits signals to manage listitems.

A selection model that allows selecting a single item.

Groups widgets together so they all request the same size.

A list model that presents a slice of another model.

Assists in creating GskRenderNodes for widgets.

Describes sorting criteria for a GtkSortListModel.

A list model that sorts the elements of another model.

Allows to enter or change numeric values.

Displays an icon-size spinning animation.

Shows one of its children at a time.

An auxiliary class used by GtkStack.

Uses a sidebar to switch between GtkStack pages.

Shows a row of buttons to switch between GtkStack pages.

A GtkStatusbar widget is usually placed along the bottom of an application’s main GtkWindow.

deprecated: 4.10 

Determines whether to include items by comparing strings to a fixed search term.

A list model that wraps an array of strings.

The type of items in a GtkStringList.

Sorts items by comparing strings.

GtkStyleContext stores styling information affecting a widget.

deprecated: 4.10 

Shows a “light switch” that has two states: on or off.

A single-line text entry.

Stores text and attributes for display in a GtkTextView.

Marks a spot in a GtkTextBuffer where child widgets can be “anchored”.

Marks a position in a GtkTextbuffer that is preserved across modifications.

Can be applied to text contained in a GtkTextBuffer.

Collects the tags in a GtkTextBuffer.

Displays the contents of a GtkTextBuffer.

Shows a button which remains “pressed-in” when clicked.

Represents a widget tooltip.

Provides an expander for a tree-like list.

A list model that can create child models on demand.

The type of item used by GtkTreeListModel.

Applies a gives sorter to the levels in a tree.

A GtkTreeModel which hides parts of an underlying tree model.

deprecated: 4.10 

A GtkTreeModel which makes an underlying tree model sortable.

deprecated: 4.10 

The selection object for GtkTreeView.

deprecated: 4.10 

A tree-like data structure that can be used with the GtkTreeView.

deprecated: 4.10 

A widget for displaying both trees and lists.

deprecated: 4.10 

A visible column in a GtkTreeView widget.

deprecated: 4.10 

Asynchronous API to open a uri with an application.

since: 4.10

Shows a GtkMediaStream with media controls.

Implements scrollability for widgets that don’t support scrolling on their own.

GtkVolumeButton is a GtkScaleButton subclass tailored for volume control.

deprecated: 4.10 

The base class for all widgets.

A GdkPaintable that displays the contents of a widget.

A toplevel window which can contain other widgets.

Shows window frame controls.

Creates groups of windows that behave like separate applications.

Implements titlebar functionality for a window.

An interface for describing UI elements for Assistive Technologies.

An interface for accessible objects containing a numeric value.

since: 4.10

An interface for accessible objects containing formatted text.

since: 4.14

Provides a way to associate widgets with actions.

GtkAppChooser is an interface for widgets which allow the user to choose an application.

deprecated: 4.10 

Allows objects to extend and customize deserialization from ui files.

Provides language binding support to GtkBuilder.

Interface for widgets that can be used for editing cells.

deprecated: 4.10 

An interface for packing cells.

deprecated: 4.10 

GtkColorChooser is an interface that is implemented by widgets for choosing colors.

deprecated: 4.10 

Makes it possible to use an object as source or target in a GtkConstraint.

Interface for single-line text editing widgets.

GtkFileChooser is an interface that can be implemented by file selection widgets.

deprecated: 4.10 

GtkFontChooser is an interface that can be implemented by widgets for choosing fonts.

deprecated: 4.10 

An interface for widgets that have their own GdkSurface.

An interface for widgets that can be oriented horizontally or vertically.

The interface that is used to implement print preview.

An interface for widgets that can act as the root of a widget hierarchy.

An interface for widgets with native scrolling ability.

An interface that adds support for sections to list models.

since: 4.12

An interface that adds support for selection to list models.

An interface that is used to implement shortcut scopes.

An interface for style information used by GtkStyleContext.

An interface that supports symbolic colors in paintables.

since: 4.6

Interface for Drag-and-Drop destinations in GtkTreeView.

deprecated: 4.10 

Interface for Drag-and-Drop destinations in GtkTreeView.

deprecated: 4.10 

The tree interface used by GtkTreeView.

deprecated: 4.10 

The interface for sortable models used by GtkTreeView.

deprecated: 4.10 

Wraps a list of references to GtkAccessible objects.

since: 4.14

A range inside the text of an accessible object.

since: 4.14

A set of unsigned integers.

Iterates over the elements of a GtkBitset.

Specifies a border around a rectangular area.

Provides context for parsing GtkBuilder UI files.

A sub-parser for GtkBuildable implementations.

Points at a location inside a CSS stream.

Defines a part of a CSS document.

A CSS style change.

An opaque structure representing a watched GtkExpression.

Struct defining a pad action entry.

A range of pages to print.

GtkPaperSize handles paper sizes.

A print backend.

An auxiliary object for printing that allows decoupling the setup from the printing.

since: 4.14

Meta-data to be passed to gtk_recent_manager_add_full() when registering a recently used resource.

Contains the metadata associated with an item in the recently used files list.

Represents a request of a screen object in a given orientation.

Represents the desired size of a widget.

Provides detailed information on how a scroll operation should be performed.

since: 4.12

Iterates over the contents of a GtkTextBuffer.

The GtkTreeIter is the primary structure for accessing a GtkTreeModel. Models are expected to put a unique integer in the stamp member, and put model-specific data in the three user_data members.

deprecated: 4.10 

An opaque structure representing a path to a row in a model.

deprecated: 4.10 

A GtkTreeRowReference tracks model changes so that it always refers to the same row (a GtkTreePath refers to a position, not a fixed row). Create a new GtkTreeRowReference with gtk_tree_row_reference_new().

deprecated: 4.10 

The rectangle representing the area allocated for a widget by its parent.

The priority of an accessibility announcement.

since: 4.14

The possible values for the GTK_ACCESSIBLE_PROPERTY_AUTOCOMPLETE accessible property.

The possible values for the GTK_ACCESSIBLE_STATE_INVALID accessible state.

The various platform states which can be queried using gtk_accessible_get_platform_state().

since: 4.10

The possible accessible properties of a GtkAccessible.

The possible accessible relations of a GtkAccessible.

The accessible role for a GtkAccessible implementation.

The possible values for the GTK_ACCESSIBLE_PROPERTY_SORT accessible property.

The possible accessible states of a GtkAccessible.

The type of contents change operation.

since: 4.14

The granularity for queries about the text contents of a GtkAccessibleText implementation.

since: 4.14

The possible values for the GTK_ACCESSIBLE_STATE_PRESSED accessible state.

Controls how a widget deals with extra space in a single dimension.

Indicates the direction in which an arrow should point.

Determines the role of a page inside a GtkAssistant.

deprecated: 4.10 

Baseline position in a row of widgets.

Describes how the border of a UI element should be rendered.

Prebuilt sets of buttons for GtkDialog.

The available modes for GtkCellRendererAccel:accel-mode.

Identifies how the user can interact with a particular cell.

Describes how a GtkStringSorter turns strings into sort keys to compare them.

since: 4.10

The widget attributes that can be used when creating a GtkConstraint.

The relation between two terms of a constraint.

The strength of a constraint, expressed as a symbolic constant.

Controls how a content should be made to fit inside an allocation.

since: 4.8

Specifies which corner a child widget should be placed in when packed into a GtkScrolledWindow..

Warnings that can occur while parsing CSS.

Passed to various keybinding signals for deleting text.

Focus movement types.

The identifiers for GtkEditable properties.

Specifies the side of the entry at which an icon is placed.

Describes the state of a GdkEventSequence in a GtkGesture.

Describes whether a GtkFileChooser is being used to open existing files or to save to a possibly new file.

Describes changes in a filter in more detail and allows objects using the filter to optimize refiltering items.

Describes the known strictness of a filter.

The level of granularity for the font selection.

since: 4.10

Values for the GtkSettings:gtk-font-rendering setting that influence how GTK renders fonts.

since: 4.16

Represents the state of graphics offloading.

since: 4.14

Built-in icon sizes.

An enum for determining where a dropped item goes.

Describes the image data representation used by a GtkImage.

Describes primary purpose of the input widget.

The different methods to handle text in GtkInscription when it doesn’t fit the available space.

since: 4.8

Used for justifying the text inside a GtkLabel widget.

Describes how GtkLevelBar contents should be rendered.

The type of license for an application.

Used to configure the focus behavior in the GTK_DIR_TAB_FORWARD and GTK_DIR_TAB_BACKWARD direction, like the Tab key in a GtkListView.

since: 4.12

The type of message being displayed in a GtkMessageDialog.

Passed as argument to various keybinding signals for moving the cursor position.

Options for selecting a different wrap mode for natural size requests.

since: 4.6

The parameter used in the action signals of GtkNotebook.

Used to determine the layout of pages on a sheet when printing multiple pages per sheet.

Describes the way two values can be compared.

Represents the orientation of widgets and other objects.

Defines how content overflowing a given area should be handled.

Represents the packing location of a children in its parent.

The type of a pad action.

See also gtk_print_settings_set_orientation().

See also gtk_print_job_set_page_set().

Describes the panning direction of a GtkGesturePan.

Determines how the size should be computed to achieve the one of the visibility mode for the scrollbars.

Describes which edge of a widget a certain feature is positioned at.

See also gtk_print_settings_set_duplex().

Determines what action the print operation should perform.

The result of a print operation.

See also gtk_print_job_set_pages().

See also gtk_print_settings_set_quality().

The status gives a rough indication of the completion of a running print operation.

Describes limits of a GtkEventController for handling events targeting other widgets.

Describes the stage at which events are fed into a GtkEventController.

Predefined values for use as response ids in gtk_dialog_add_button().

These enumeration values describe the possible transitions when the child of a GtkRevealer widget is shown or hidden.

Defines the policy to be used in a scrollable widget when updating the scrolled window adjustments in a given orientation.

Passed as argument to various keybinding signals.

Scrolling types.

Used to control what selections users are allowed to make.

Determines how GTK handles the sensitivity of various controls, such as combo box buttons.

Describes where GtkShortcuts added to a GtkShortcutController get handled.

GtkShortcutType specifies the kind of shortcut that is being described.

The mode of the size group determines the directions in which the size group affects the requested sizes of its component widgets.

Specifies a preference for height-for-width or width-for-height geometry management.

Describes changes in a sorter in more detail and allows users to optimize resorting.

Describes the type of order that a GtkSorter may produce.

Determines the direction of a sort.

Determines whether the spin button displays values outside the adjustment bounds.

The values of the GtkSpinType enumeration are used to specify the change to make in gtk_spin_button_spin().

Possible transitions between pages in a GtkStack widget.

Specifies how search strings are matched inside text.

The indexes of colors passed to symbolic color rendering, such as Gtk.SymbolicPaintableInterface.snapshot_symbolic.

since: 4.6

Values that can be passed to the Gtk.WidgetClass.system_setting_changed vfunc.

Reading directions for text.

Granularity types that extend the text selection. Use the GtkTextView::extend-selection signal to customize the selection.

Used to reference the layers of GtkTextView for the purpose of customized drawing with the ::snapshot_layer vfunc.

Used to reference the parts of GtkTextView.

The sizing method the column uses to determine its width. Please note that GTK_TREE_VIEW_COLUMN_AUTOSIZE are inefficient for large views, and can make columns appear choppy.

An enum for determining where a dropped row goes.

Used to indicate which grid lines to draw in a tree view.

See also gtk_print_settings_set_paper_width().

Describes a type of line wrapping.

Types of user actions that may be blocked by GtkApplication.

The list of flags that can be passed to gtk_builder_create_closure().

Tells how a cell is to be rendered.

Flags to use with gtk_set_debug_flags().

Flags used to influence dialog construction.

Describes the behavior of a GtkEventControllerScroll.

Specifies the granularity of font selection that is desired in a GtkFontChooser.

Used to specify options for gtk_icon_theme_lookup_icon().

Describes hints that might be taken into account by input methods or applications.

List of actions to perform when scrolling to items in a list widget.

since: 4.12

Flags that influence the behavior of gtk_widget_pick().

Flags that affect how GtkPopoverMenu widgets built from a GMenuModel are created and displayed.

Specifies which features the print dialog should offer.

Flags that can be passed to action activation.

Describes a widget state.

Flags that modify the behavior of gtk_style_context_to_string().

Values for GtkTextBufferCommitNotify to denote the point of the notification.

since: 4.16

Flags affecting how a search is done.

These flags indicate various properties of a GtkTreeModel.

deprecated: 4.10 

Error codes that identify various errors that can occur while using GtkBuilder.

Domain for VFL parsing errors.

Errors that can occur while parsing CSS.

Error codes in the GTK_DIALOG_ERROR domain that can be returned by async dialog functions.

since: 4.10

These identify the various errors that can occur while calling GtkFileChooser functions.

Error codes for GtkIconTheme operations.

Error codes that identify various errors that can occur while using the GTK printing support.

Error codes for GtkRecentManager operations.

Type of callback used to calculate the next page in a GtkAssistant.

The type of the callback functions used for iterating over the cell renderers and their allocated areas inside a GtkCellArea, see gtk_cell_area_foreach_alloc().

The type of the callback functions used for iterating over the cell renderers of a GtkCellArea, see gtk_cell_area_foreach().

A function which should set the value of cell_layout’s cell renderer(s) as appropriate.

A function to be used by GtkCustomLayout to allocate a widget.

User function that is called to determine if the item should be matched.

A function to be used by GtkCustomLayout to measure a widget.

Queries a widget for its preferred size request mode.

Whenever drawing_area needs to redraw, this function will be called.

A function which decides whether the row indicated by iter matches a given key, and should be displayed as a possible completion for key.

Callback called by gtk_expression_watch() when the expression value changes.

Called for flow boxes that are bound to a GListModel.

A function that will be called whenever a child changes or is added.

A function used by gtk_flow_box_selected_foreach().

A function to compare two children to determine which should come first.

The type of function that is used for deciding what fonts get shown in a GtkFontChooser.

A function used by gtk_icon_view_selected_foreach() to map all selected rows.

Called for list boxes that are bound to a GListModel with gtk_list_box_bind_model() for each item that gets added to the model.

Will be called whenever the row changes or is added and lets you control if the row should be visible or not.

A function used by gtk_list_box_selected_foreach().

Compare two rows to determine which should be first.

Whenever row changes or which row is before row changes this is called, which lets you update the header on row.

User function that is called to map an item of the original model to an item expected by the map model.

User-provided callback function to create a popup for a GtkMenuButton on demand.

The type of function that is passed to gtk_print_run_page_setup_dialog_async().

The type of function passed to gtk_enumerate_printers().

The type of callback that is passed to gtk_print_job_send().

Function called by gtk_print_settings_foreach() on every key/value pair inside a GtkPrintSettings.

Function that formats the value of a scale.

Type for shortcuts based on user callbacks.

A notification callback used by gtk_text_buffer_add_commit_notify().

since: 4.16

The predicate function used by gtk_text_iter_forward_find_char() and gtk_text_iter_backward_find_char().

A function used with gtk_text_tag_table_foreach(), to iterate over every GtkTextTag inside a GtkTextTagTable.

Callback type for adding a function to update animations.

A function to set the properties of a cell instead of just using the straight mapping between the cell and the model.

A GtkTreeIterCompareFunc should return a negative integer, zero, or a positive integer if a sorts before b, a sorts with b, or a sorts after b respectively.

Prototype of the function called to create new child models when gtk_tree_list_row_set_expanded() is called.

A function which calculates display values from raw values in the model. It must fill value with the display value for the column column in the row indicated by iter.

A function which decides whether the row indicated by iter is visible.

Type of the callback passed to gtk_tree_model_foreach() to iterate over the rows in a tree model.

A function used by gtk_tree_selection_selected_foreach() to map all selected rows. It will be called on every selected row in the view.

A function used by gtk_tree_selection_set_select_function() to filter whether or not a row may be selected. It is called whenever a row’s state might change.

Function type for determining whether column can be dropped in a particular spot (as determined by prev_column and next_column). In left to right locales, prev_column is on the left of the potential drop spot, and next_column is on the right. In right to left mode, this is reversed. This function should return TRUE if the spot is a valid drop spot. Please note that returning TRUE does not actually indicate that the column drop was made, but is meant only to indicate a possible drop spot to the user.

Function used for gtk_tree_view_map_expanded_rows().

Function type for determining whether the row pointed to by iter should be rendered as a separator. A common way to implement this is to have a boolean column in the model, whose values the GtkTreeViewRowSeparatorFunc returns.

A function used for checking whether a row in model matches a search key string entered by the user. Note the return value is reversed from what you would normally expect, though it has some similarity to strcmp() returning 0 for equal strings.

The type of the callback functions used for activating actions installed with gtk_widget_class_install_action().

Gets the modifier mask.

Converts an accelerator keyval and modifier mask into a string which can be used to represent the accelerator to the user.

Converts an accelerator keyval and modifier mask into a string that can be displayed to the user.

Converts an accelerator keyval and modifier mask into a string that can be parsed by gtk_accelerator_parse().

Converts an accelerator keyval and modifier mask into a string that can be parsed by gtk_accelerator_parse_with_keycode().

Parses a string representing an accelerator.

Parses a string representing an accelerator.

Determines whether a given keyval and modifier mask constitute a valid keyboard accelerator.

Checks that the GTK library in use is compatible with the given version.

Registers an error quark for CSS parsing errors.

Registers an error quark for CSS parsing warnings.

Prevents GTK from using portals.

unstable since: 4.18

Prevents gtk_init() and gtk_init_check() from calling setlocale().

Distributes extra_space to child sizes by bringing smaller children up to natural size first.

Calls a function for all printers that are known to GTK.

Returns the binary age as passed to libtool.

Returns the GTK debug flags that are currently active.

Returns the PangoLanguage for the default language currently in effect.

Returns the interface age as passed to libtool.

Gets the direction of the current locale.

Returns the major version number of the GTK library.

Returns the micro version number of the GTK library.

Returns the minor version number of the GTK library.

Converts a color from HSV space to RGB.

Initializes GTK.

Initializes GTK.

Returns whether GTK has been initialized.

Creates a new GParamSpec instance for a property holding a GtkExpression.

Runs a page setup dialog, letting the user modify the values from page_setup.

Runs a page setup dialog, letting the user modify the values from page_setup.

Renders an activity indicator (such as in GtkSpinner). The state GTK_STATE_FLAG_CHECKED determines whether there is activity going on.

deprecated: 4.10 

Renders an arrow pointing to angle.

deprecated: 4.10 

Renders the background of an element.

deprecated: 4.10 

Renders a checkmark (as in a GtkCheckButton).

deprecated: 4.10 

Renders an expander (as used in GtkTreeView and GtkExpander) in the area defined by x, y, width, height. The state GTK_STATE_FLAG_CHECKED determines whether the expander is collapsed or expanded.

deprecated: 4.10 

Renders a focus indicator on the rectangle determined by x, y, width, height.

deprecated: 4.10 

Renders a frame around the rectangle defined by x, y, width, height.

deprecated: 4.10 

Renders a handle (as in GtkPaned and GtkWindow’s resize grip), in the rectangle determined by x, y, width, height.

deprecated: 4.10 

Renders the icon in texture at the specified x and y coordinates.

deprecated: 4.10 

Renders layout on the coordinates x, y.

deprecated: 4.10 

Renders a line from (x0, y0) to (x1, y1).

deprecated: 4.10 

Renders an option mark (as in a radio button), the GTK_STATE_FLAG_CHECKED state will determine whether the option is on or off, and GTK_STATE_FLAG_INCONSISTENT whether it should be marked as undefined.

deprecated: 4.10 

Converts a color from RGB space to HSV.

Sets the GTK debug flags.

A convenience function for showing an application’s about dialog.

This function launches the default application for showing a given uri, or shows an error dialog if that fails.

deprecated: 4.10 

This function launches the default application for showing a given uri.

deprecated: 4.10 

Finishes the gtk_show_uri() call and returns the result of the operation.

deprecated: 4.10 

Prints an assertion message for gtk_test_accessible_assert_role().

Checks whether the accessible property of accessible is set to a specific value.

Checks whether the accessible relation of accessible is set to a specific value.

Checks whether the accessible state of accessible is set to a specific value.

Checks whether the GtkAccessible has property set.

Checks whether the GtkAccessible has relation set.

Checks whether the GtkAccessible:accessible-role of the accessible is role.

Checks whether the GtkAccessible has state set.

This function is used to initialize a GTK test program.

Return the type ids that have been registered after calling gtk_test_register_all_types().

Force registration of all core GTK object types.

Enters the main loop and waits for widget to be “drawn”.

Creates a content provider for dragging path from tree_model.

deprecated: 4.10 

Obtains a tree_model and path from value of target type GTK_TYPE_TREE_ROW_DATA.

deprecated: 4.10 

Retrieves the GtkExpression stored inside the given value, and acquires a reference to it.

Retrieves the GtkExpression stored inside the given value.

Stores the given GtkExpression inside value.

Stores the given GtkExpression inside value.

Adds the callback to the scope of builder under its own name.

since: 4.8

This macro should be used to emit a warning about and unexpected type value in a GtkBuildable add_child implementation.

This macro should be used to emit a standard warning about unexpected properties in set_cell_property() and get_cell_property() implementations.

Returns true if the version of the GTK header files is the same as or newer than the passed-in version.

Whether the type debug flag is set.

Checks whether a GtkAccessible implementation has its accessible property set to the expected value, and raises an assertion if the condition is not satisfied.

Checks whether a GtkAccessible implementation has its accessible relation set to the expected value, and raises an assertion if the condition is not satisfied.

Checks whether a GtkAccessible implementation has the given role, and raises an assertion if the condition is failed.

Checks whether a GtkAccessible implementation has its accessible state set to the expected value, and raises an assertion if the condition is not satisfied.

Evaluates to true if value was initialized with GTK_TYPE_EXPRESSION.

Binds a callback function defined in a template to the widget_class.

Binds a child widget defined in a template to the widget_class.

Binds a child widget defined in a template to the widget_class.

Binds a child widget defined in a template to the widget_class.

Binds a child widget defined in a template to the widget_class.

An attribute for the background color, expressed as an RGB value encoded in a string using the format: {r8},{g8},{b8}.

An attribute for the font family name.

An attribute for the foreground color, expressed as an RGB value encoded in a string using the format: {r8},{g8},{b8}.

An attribute for the overline style.

The “none” overline value for GTK_ACCESSIBLE_ATTRIBUTE_OVERLINE.

The “single” overline value for GTK_ACCESSIBLE_ATTRIBUTE_OVERLINE.

An attribute for the font size, expressed in points.

An attribute for the font stretch type.

The “condensed” stretch value for GTK_ACCESSIBLE_ATTRIBUTE_STRETCH.

The “expanded” stretch value for GTK_ACCESSIBLE_ATTRIBUTE_STRETCH.

The “extra condensed” stretch value for GTK_ACCESSIBLE_ATTRIBUTE_STRETCH.

The “extra expanded” stretch value for GTK_ACCESSIBLE_ATTRIBUTE_STRETCH.

The “normal” stretch value for GTK_ACCESSIBLE_ATTRIBUTE_STRETCH.

The “semi condensed” stretch value for GTK_ACCESSIBLE_ATTRIBUTE_STRETCH.

The “semi expanded” stretch value for GTK_ACCESSIBLE_ATTRIBUTE_STRETCH.

The “ultra condensed” stretch value for GTK_ACCESSIBLE_ATTRIBUTE_STRETCH.

The “ultra expanded” stretch value for GTK_ACCESSIBLE_ATTRIBUTE_STRETCH.

An attribute for strikethrough text.

An attribute for the font style.

The “italic” style value for GTK_ACCESSIBLE_ATTRIBUTE_STYLE.

The “normal” style value for GTK_ACCESSIBLE_ATTRIBUTE_STYLE.

The “oblique” style value for GTK_ACCESSIBLE_ATTRIBUTE_STYLE.

An attribute for the underline style.

The “double” underline value for GTK_ACCESSIBLE_ATTRIBUTE_UNDERLINE.

The “error” underline value for GTK_ACCESSIBLE_ATTRIBUTE_UNDERLINE.

The “none” underline value for GTK_ACCESSIBLE_ATTRIBUTE_UNDERLINE.

The “single” underline value for GTK_ACCESSIBLE_ATTRIBUTE_UNDERLINE.

An attribute for the font variant.

The “all petite caps” variant value for GTK_ACCESSIBLE_ATTRIBUTE_VARIANT.

The “all small caps” variant value for GTK_ACCESSIBLE_ATTRIBUTE_VARIANT.

The “petite caps” variant value for GTK_ACCESSIBLE_ATTRIBUTE_VARIANT.

The “small caps” variant value for GTK_ACCESSIBLE_ATTRIBUTE_VARIANT.

The “title caps” variant value for GTK_ACCESSIBLE_ATTRIBUTE_VARIANT.

The “unicase” variant value for GTK_ACCESSIBLE_ATTRIBUTE_VARIANT.

An attribute for the font weight.

An undefined value. The accessible attribute is either unset, or its value is undefined.

Like gtk_get_binary_age(), but from the headers used at application compile time, rather than from the library linked against at application run time.

The default name of the extension point.

Constant to return from a signal handler for the ::input signal in case of conversion failure.

Like gtk_get_interface_age(), but from the headers used at application compile time, rather than from the library linked against at application run time.

The value used to refer to a guaranteed invalid position in a GListModel.

The name used for the stock full offset included by GtkLevelBar.

The name used for the stock high offset included by GtkLevelBar.

The name used for the stock low offset included by GtkLevelBar.

Like gtk_get_major_version(), but from the headers used at application compile time, rather than from the library linked against at application run time.

Evaluates to the maximum length of a compose sequence.

The default extension point name for media file.

Like gtk_get_micro_version(), but from the headers used at application compile time, rather than from the library linked against at application run time.

Like gtk_get_minor_version(), but from the headers used at application compile time, rather than from the library linked against at application run time.

Name for the A3 paper size.

Name for the A4 paper size.

Name for the A5 paper size.

Name for the B5 paper size.

Name for the Executive paper size.

Name for the Legal paper size.

Name for the Letter paper size.

The key used by the “Print to file” printer to store whether to collate the printed pages.

The key used by the “Print to file” printer to store the default source.

The key used by the “Print to file” printer to store the dither used.

The key used by the “Print to file” printer to store whether to print the output in duplex.

The key used by the “Print to file” printer to store the finishings.

The key used by the “Print to file” printer to store the media type.

The key used by the “Print to file” printer to store the number of copies.

The key used by the “Print to file” printer to store the number of pages per sheet.

The key used by the “Print to file” printer to store the number of pages per sheet in number-up mode.

The key used by the “Print to file” printer to store the orientation.

The key used by the “Print to file” printer to store the file name of the output without the path to the directory and the file extension.

The key used by the “Print to file” printer to store the output bin.

The key used by the “Print to file” printer to store the directory to which the output should be written.

The key used by the “Print to file” printer to store the format of the output. The supported values are “PS” and “PDF”.

The key used by the “Print to file” printer to store the URI to which the output should be written. GTK itself supports only “file://” URIs.

The key used by the “Print to file” printer to store the array of page ranges to print.

The key used by the “Print to file” printer to store the set of pages to print.

The key used by the “Print to file” printer to store the page format.

The key used by the “Print to file” printer to store the page height.

The key used by the “Print to file” printer to store the paper width.

The key used by the “Print to file” printer to store which pages to print.

The key used by the “Print to file” printer to store the printer name.

The key used by the “Print to file” printer to store the resolution in lines per inch.

The key used by the “Print to file” printer to store the printing quality.

The key used by the “Print to file” printer to store the resolution in DPI.

The key used by the “Print to file” printer to store the horizontal resolution in DPI.

The key used by the “Print to file” printer to store the vertical resolution in DPI.

The key used by the “Print to file” printer to store whether to reverse the order of the printed pages.

The key used by the “Print to file” printer to store the scale.

The key used by the “Print to file” printer to store whether to print with colors.

The key used by the “Print to file” printer to store 32-bit Windows extra driver.

The key used by the “Print to file” printer to store the 32-bit Windows driver version.

Use this priority for functionality related to size allocation.

A priority that can be used when adding a GtkStyleProvider for application-specific style information.

The priority used for default style information that is used in the absence of themes.

The priority used for style information provided via GtkSettings.

The priority used for style information provided by themes.

The priority used for the style information from $XDG_CONFIG_HOME/gtk-4.0/gtk.css.

The priority at which the text view validates onscreen lines in an idle job in the background.

Uses the default sort function in a GtkTreeSortable.

Disables sorting in a GtkTreeSortable.