Gtk – 4.0
Description: Reference for Gtk-4.0

### Namespace

# Gtk – 4.0

The GTK toolkit

Version | 4.4.0
Authors | GTK Development Team
License | LGPL-2.1-or-later
Website | https://www.gtk.org
Source | https://gitlab.gnome.org/GNOME/gtk/

#### Build

C headers | `gtk/gtk.h`
pkg-config files | `gtk4`

#### Dependencies

GObject | The base type system library
| Browse documentation
Graphene | A thin layer of mathematical types for 3D libraries
| Browse documentation
Pango | Text shaping and rendering
| Browse documentation
GDK | The GTK windowing system abstraction
| Browse documentation
GSK | The GTK rendering abstraction
| Browse documentation

#### Additional documentation

- Overview
- Getting Started with GTK
- Compiling the GTK Libraries
- Compiling GTK Applications on UNIX
- Running and debugging GTK Applications
- Common Questions
- Contact information and bug reports
- Initialization
- Overview of actions in GTK
- Overview of GTK input and event handling
- Drag-and-Drop in GTK
- Overview of the drawing model
- CSS in GTK
- GTK CSS Properties
- GTK Accessibility
- List Widget Overview
- Text Widget Overview
- Tree and List Widget Overview
- Migrating from GTK 2.x to GTK 4
- Migrating from GTK 3.x to GTK 4
- The Broadway windowing system
- Using GTK on Apple macOS
- Using GTK with Wayland
- Using GTK on Windows
- GTK for the X Window System
- Widget Gallery
- Classes Hierarchy

#### Classes

AboutDialog | The `GtkAboutDialog` offers a simple way to display information about a program.
ActionBar | `GtkActionBar` is designed to present contextual actions.
ActivateAction | A `GtkShortcutAction` that calls `gtk_widget_activate()`.
Adjustment | `GtkAdjustment` is a model for a numeric value.
AlternativeTrigger | A `GtkShortcutTrigger` that combines two triggers.
AnyFilter | `GtkAnyFilter` matches an item when at least one of its filters matches.
AppChooserButton | The `GtkAppChooserButton` lets the user select an application.
AppChooserDialog | `GtkAppChooserDialog` shows a `GtkAppChooserWidget` inside a `GtkDialog`.
AppChooserWidget | `GtkAppChooserWidget` is a widget for selecting applications.
Application | `GtkApplication` is a high-level API for writing applications.
ApplicationWindow | `GtkApplicationWindow` is a `GtkWindow` subclass that integrates with `GtkApplication`.
AspectFrame | `GtkAspectFrame` preserves the aspect ratio of its child.
Assistant | `GtkAssistant` is used to represent a complex as a series of steps.
AssistantPage | `GtkAssistantPage` is an auxiliary object used by `GtkAssistant.
ATContext | `GtkATContext` is an abstract class provided by GTK to communicate to platform-specific assistive technologies API.
BinLayout | `GtkBinLayout` is a `GtkLayoutManager` subclass useful for create “bins” of widgets.
BookmarkList | `GtkBookmarkList` is a list model that wraps `GBookmarkFile`.
BoolFilter | `GtkBoolFilter` evaluates a boolean `GtkExpression` to determine whether to include items.
Box | The `GtkBox` widget arranges child widgets into a single row or column.
BoxLayout | `GtkBoxLayout` is a layout manager that arranges children in a single row or column.
Builder | A `GtkBuilder` reads XML descriptions of a user interface and instantiates the described objects.
BuilderCScope | A `GtkBuilderScope` implementation for the C language.
BuilderListItemFactory | `GtkBuilderListItemFactory` is a `GtkListItemFactory` that creates widgets by instantiating `GtkBuilder` UI templates.
Button | The `GtkButton` widget is generally used to trigger a callback function that is called when the button is pressed.
Calendar | `GtkCalendar` is a widget that displays a Gregorian calendar, one month at a time.
CallbackAction | A `GtkShortcutAction` that invokes a callback.
CClosureExpression | A variant of `GtkClosureExpression` using a C closure.
CellArea | An abstract class for laying out GtkCellRenderers.
CellAreaBox | A cell area that renders GtkCellRenderers into a row or a column.
CellAreaContext | Stores geometrical information for a series of rows in a GtkCellArea.
CellRenderer | An object for rendering a single cell.
CellRendererAccel | Renders a keyboard accelerator in a cell.
CellRendererCombo | Renders a combobox in a cell.
CellRendererPixbuf | Renders a pixbuf in a cell.
CellRendererProgress | Renders numbers as progress bars.
CellRendererSpin | Renders a spin button in a cell.
CellRendererSpinner | Renders a spinning animation in a cell.
CellRendererText | Renders text in a cell.
CellRendererToggle | Renders a toggle button in a cell.
CellView | A widget displaying a single row of a GtkTreeModel.
CenterBox | `GtkCenterBox` arranges three children in a row, keeping the middle child centered as well as possible.
CenterLayout | `GtkCenterLayout` is a layout manager that manages up to three children.
CheckButton | A `GtkCheckButton` places a label next to an indicator.
ClosureExpression | An expression using a custom `GClosure` to compute the value from its parameters.
ColorButton | The `GtkColorButton` allows to open a color chooser dialog to change the color.
ColorChooserDialog | A dialog for choosing a color.
ColorChooserWidget | The `GtkColorChooserWidget` widget lets the user select a color.
ColumnView | `GtkColumnView` presents a large dynamic list of items using multiple columns with headers.
ColumnViewColumn | `GtkColumnViewColumn` represents the columns being added to `GtkColumnView`.
ComboBox | A `GtkComboBox` is a widget that allows the user to choose from a list of valid choices.
ComboBoxText | A `GtkComboBoxText` is a simple variant of `GtkComboBox` for text-only use cases.
ConstantExpression | A constant value in a `GtkExpression`.
Constraint | `GtkConstraint` describes a constraint between attributes of two widgets, expressed as a linear equation.
ConstraintGuide | A `GtkConstraintGuide` is an invisible layout element in a `GtkConstraintLayout`.
ConstraintLayout | A layout manager using constraints to describe relations between widgets.
ConstraintLayoutChild | `GtkLayoutChild` subclass for children in a `GtkConstraintLayout`.
CssProvider | `GtkCssProvider` is an object implementing the `GtkStyleProvider` interface for CSS.
CustomFilter | `GtkCustomFilter` determines whether to include items with a callback.
CustomLayout | `GtkCustomLayout` uses closures for size negotiation.
CustomSorter | `GtkCustomSorter` is a `GtkSorter` implementation that sorts via a callback function.
Dialog | Dialogs are a convenient way to prompt the user for a small amount of input.
DirectoryList | `GtkDirectoryList` is a list model that wraps `g_file_enumerate_children_async()`.
DragIcon | `GtkDragIcon` is a `GtkRoot` implementation for drag icons.
DragSource | `GtkDragSource` is an event controller to initiate Drag-And-Drop operations.
DrawingArea | `GtkDrawingArea` is a widget that allows drawing with cairo.
DropControllerMotion | `GtkDropControllerMotion` is an event controller tracking the pointer during Drag-and-Drop operations.
DropDown | `GtkDropDown` is a widget that allows the user to choose an item from a list of options.
DropTarget | `GtkDropTarget` is an event controller to receive Drag-and-Drop operations.
DropTargetAsync | `GtkDropTargetAsync` is an event controller to receive Drag-and-Drop operations, asynchronously.
EditableLabel | A `GtkEditableLabel` is a label that allows users to edit the text by switching to an “edit mode”.
EmojiChooser | The `GtkEmojiChooser` is used by text widgets such as `GtkEntry` or `GtkTextView` to let users insert Emoji characters.
Entry | `GtkEntry` is a single line text entry widget.
EntryBuffer | A `GtkEntryBuffer` hold the text displayed in a `GtkText` widget.
EntryCompletion | `GtkEntryCompletion` is an auxiliary object to provide completion functionality for `GtkEntry`.
EventController | `GtkEventController` is the base class for event controllers.
EventControllerFocus | `GtkEventControllerFocus` is an event controller to keep track of keyboard focus.
EventControllerKey | `GtkEventControllerKey` is an event controller that provides access to key events.
EventControllerLegacy | `GtkEventControllerLegacy` is an event controller that provides raw access to the event stream.
EventControllerMotion | `GtkEventControllerMotion` is an event controller tracking the pointer position.
EventControllerScroll | `GtkEventControllerScroll` is an event controller that handles scroll events.
EveryFilter | `GtkEveryFilter` matches an item when each of its filters matches.
Expander | `GtkExpander` allows the user to reveal its child by clicking on an expander triangle.
Expression | `GtkExpression` provides a way to describe references to values.
FileChooserDialog | `GtkFileChooserDialog` is a dialog suitable for use with “File Open” or “File Save” commands.
FileChooserNative | `GtkFileChooserNative` is an abstraction of a dialog suitable for use with “File Open” or “File Save as” commands.
FileChooserWidget | `GtkFileChooserWidget` is a widget for choosing files.
FileFilter | `GtkFileFilter` filters files by name or mime type.
Filter | A `GtkFilter` object describes the filtering to be performed by a `GtkFilterListModel`.
FilterListModel | `GtkFilterListModel` is a list model that filters the elements of the underlying model according to a `GtkFilter`.
Fixed | `GtkFixed` places its child widgets at fixed positions and with fixed sizes.
FixedLayout | `GtkFixedLayout` is a layout manager which can place child widgets at fixed positions.
FixedLayoutChild | `GtkLayoutChild` subclass for children in a `GtkFixedLayout`.
FlattenListModel | `GtkFlattenListModel` is a list model that concatenates other list models.
FlowBox | A `GtkFlowBox` puts child widgets in reflowing grid.
FlowBoxChild | `GtkFlowBoxChild` is the kind of widget that can be added to a `GtkFlowBox`.
FontButton | The `GtkFontButton` allows to open a font chooser dialog to change the font.
FontChooserDialog | The `GtkFontChooserDialog` widget is a dialog for selecting a font.
FontChooserWidget | The `GtkFontChooserWidget` widget lets the user select a font.
Frame | `GtkFrame` is a widget that surrounds its child with a decorative frame and an optional label.
Gesture | `GtkGesture` is the base class for gesture recognition.
GestureClick | `GtkGestureClick` is a `GtkGesture` implementation for clicks.
GestureDrag | `GtkGestureDrag` is a `GtkGesture` implementation for drags.
GestureLongPress | `GtkGestureLongPress` is a `GtkGesture` for long presses.
GesturePan | `GtkGesturePan` is a `GtkGesture` for pan gestures.
GestureRotate | `GtkGestureRotate` is a `GtkGesture` for 2-finger rotations.
GestureSingle | `GtkGestureSingle` is a `GtkGestures` subclass optimized for singe-touch and mouse gestures.
GestureStylus | `GtkGestureStylus` is a `GtkGesture` specific to stylus input.
GestureSwipe | `GtkGestureSwipe` is a `GtkGesture` for swipe gestures.
GestureZoom | `GtkGestureZoom` is a `GtkGesture` for 2-finger pinch/zoom gestures.
GLArea | `GtkGLArea` is a widget that allows drawing with OpenGL.
Grid | `GtkGrid` is a container which arranges its child widgets in rows and columns.
GridLayout | `GtkGridLayout` is a layout manager which arranges child widgets in rows and columns.
GridLayoutChild | `GtkLayoutChild` subclass for children in a `GtkGridLayout`.
GridView | `GtkGridView` presents a large dynamic grid of items.
HeaderBar | `GtkHeaderBar` is a widget for creating custom title bars for windows.
IconPaintable | Contains information found when looking up an icon in `GtkIconTheme`.
IconTheme | `GtkIconTheme` provides a facility for loading themed icons.
IconView | `GtkIconView` is a widget which displays data in a grid of icons.
Image | The `GtkImage` widget displays an image.
IMContext | `GtkIMContext` defines the interface for GTK input methods.
IMContextSimple | `GtkIMContextSimple` is an input method supporting table-based input methods.
IMMulticontext | `GtkIMMulticontext` is an input method context supporting multiple, switchable input methods.
InfoBar | `GtkInfoBar` can be show messages to the user without a dialog.
KeyvalTrigger | A `GtkShortcutTrigger` that triggers when a specific keyval and modifiers are pressed.
Label | The `GtkLabel` widget displays a small amount of text.
LayoutChild | `GtkLayoutChild` is the base class for objects that are meant to hold layout properties.
LayoutManager | Layout managers are delegate classes that handle the preferred size and the allocation of a widget.
LevelBar | `GtkLevelBar` is a widget that can be used as a level indicator.
LinkButton | A `GtkLinkButton` is a button with a hyperlink.
ListBase | `GtkListBase` is the abstract base class for GTK’s list widgets.
ListBox | `GtkListBox` is a vertical list.
ListBoxRow | `GtkListBoxRow` is the kind of widget that can be added to a `GtkListBox`.
ListItem | `GtkListItem` is used by list widgets to represent items in a `GListModel`.
ListItemFactory | A `GtkListItemFactory` creates widgets for the items taken from a `GListModel`.
ListStore | A list-like data structure that can be used with the GtkTreeView.
ListView | `GtkListView` presents a large dynamic list of items.
LockButton | `GtkLockButton` is a widget to obtain and revoke authorizations needed to operate the controls.
MapListModel | A `GtkMapListModel` maps the items in a list model to different items.
MediaControls | `GtkMediaControls` is a widget to show controls for a video.
MediaFile | `GtkMediaFile` implements `GtkMediaStream` for files.
MediaStream | `GtkMediaStream` is the integration point for media playback inside GTK.
MenuButton | The `GtkMenuButton` widget is used to display a popup when clicked.
MessageDialog | `GtkMessageDialog` presents a dialog with some message text.
MnemonicAction | A `GtkShortcutAction` that calls `gtk_widget_mnemonic_activate()`.
MnemonicTrigger | A `GtkShortcutTrigger` that triggers when a specific mnemonic is pressed.
MountOperation | `GtkMountOperation` is an implementation of `GMountOperation`.
MultiFilter | `GtkMultiFilter` is the base class for filters that combine multiple filters.
MultiSelection | `GtkMultiSelection` is a `GtkSelectionModel` that allows selecting multiple elements.
MultiSorter | `GtkMultiSorter` combines multiple sorters by trying them in turn.
NamedAction | A `GtkShortcutAction` that activates an action by name.
NativeDialog | Native dialogs are platform dialogs that don’t use `GtkDialog`.
NeverTrigger | A `GtkShortcutTrigger` that never triggers.
NoSelection | `GtkNoSelection` is a `GtkSelectionModel` that does not allow selecting anything.
Notebook | `GtkNotebook` is a container whose children are pages switched between using tabs.
NotebookPage | `GtkNotebookPage` is an auxiliary object used by `GtkNotebook`.
NothingAction | A `GtkShortcutAction` that does nothing.
NumericSorter | `GtkNumericSorter` is a `GtkSorter` that compares numbers.
ObjectExpression | A `GObject` value in a `GtkExpression`.
Overlay | `GtkOverlay` is a container which contains a single main child, on top of which it can place “overlay” widgets.
OverlayLayout | `GtkOverlayLayout` is the layout manager used by `GtkOverlay`.
OverlayLayoutChild | `GtkLayoutChild` subclass for children in a `GtkOverlayLayout`.
PadController | `GtkPadController` is an event controller for the pads found in drawing tablets.
PageSetup | A `GtkPageSetup` object stores the page size, orientation and margins.
PageSetupUnixDialog | `GtkPageSetupUnixDialog` implements a page setup dialog for platforms which don’t provide a native page setup dialog, like Unix.
Paned | `GtkPaned` has two panes, arranged either horizontally or vertically.
ParamSpecExpression | A `GParamSpec` for properties holding a `GtkExpression`.
PasswordEntry | `GtkPasswordEntry` is an entry that has been tailored for entering secrets.
PasswordEntryBuffer | A `GtkEntryBuffer` that locks the underlying memory to prevent it from being swapped to disk.
Picture | The `GtkPicture` widget displays a `GdkPaintable`.
Popover | `GtkPopover` is a bubble-like context popup.
PopoverMenu | `GtkPopoverMenu` is a subclass of `GtkPopover` that implements menu behavior.
PopoverMenuBar | `GtkPopoverMenuBar` presents a horizontal bar of items that pop up popover menus when clicked.
PrintContext | A `GtkPrintContext` encapsulates context information that is required when drawing pages for printing.
Printer | A `GtkPrinter` object represents a printer.
PrintJob | A `GtkPrintJob` object represents a job that is sent to a printer.
PrintOperation | `GtkPrintOperation` is the high-level, portable printing API.
PrintSettings | A `GtkPrintSettings` object represents the settings of a print dialog in a system-independent way.
PrintUnixDialog | `GtkPrintUnixDialog` implements a print dialog for platforms which don’t provide a native print dialog, like Unix.
ProgressBar | `GtkProgressBar` is typically used to display the progress of a long running operation.
PropertyExpression | A `GObject` property value in a `GtkExpression`.
Range | `GtkRange` is the common base class for widgets which visualize an adjustment.
RecentManager | `GtkRecentManager` manages and looks up recently used files.
Revealer | A `GtkRevealer` animates the transition of its child from invisible to visible.
Scale | A `GtkScale` is a slider control used to select a numeric value.
ScaleButton | `GtkScaleButton` provides a button which pops up a scale widget.
Scrollbar | The `GtkScrollbar` widget is a horizontal or vertical scrollbar.
ScrolledWindow | `GtkScrolledWindow` is a container that makes its child scrollable.
SearchBar | `GtkSearchBar` is a container made to have a search entry.
SearchEntry | `GtkSearchEntry` is an entry widget that has been tailored for use as a search entry.
SelectionFilterModel | `GtkSelectionFilterModel` is a list model that presents the selection from a `GtkSelectionModel`.
Separator | `GtkSeparator` is a horizontal or vertical separator widget.
Settings | `GtkSettings` provides a mechanism to share global settings between applications.
Shortcut | A `GtkShortcut` describes a keyboard shortcut.
ShortcutAction | `GtkShortcutAction` encodes an action that can be triggered by a keyboard shortcut.
ShortcutController | `GtkShortcutController` is an event controller that manages shortcuts.
ShortcutLabel | `GtkShortcutLabel` displays a single keyboard shortcut or gesture.
ShortcutsGroup | A `GtkShortcutsGroup` represents a group of related keyboard shortcuts or gestures.
ShortcutsSection | A `GtkShortcutsSection` collects all the keyboard shortcuts and gestures for a major application mode.
ShortcutsShortcut | A `GtkShortcutsShortcut` represents a single keyboard shortcut or gesture with a short text.
ShortcutsWindow | A `GtkShortcutsWindow` shows information about the keyboard shortcuts and gestures of an application.
ShortcutTrigger | `GtkShortcutTrigger` tracks how a `GtkShortcut` should be activated.
SignalAction | A `GtkShortcut`Action that emits a signal.
SignalListItemFactory | `GtkSignalListItemFactory` is a `GtkListItemFactory` that emits signals to to manage listitems.
SingleSelection | `GtkSingleSelection` is a `GtkSelectionModel` that allows selecting a single item.
SizeGroup | `GtkSizeGroup` groups widgets together so they all request the same size.
SliceListModel | `GtkSliceListModel` is a list model that presents a slice of another model.
Snapshot | `GtkSnapshot` assists in creating `GskRenderNodes` for widgets.
Sorter | `GtkSorter` is an object to describe sorting criteria.
SortListModel | A `GListModel` that sorts the elements of an underlying model according to a `GtkSorter`.
SpinButton | A `GtkSpinButton` is an ideal way to allow the user to set the value of some attribute.
Spinner | A `GtkSpinner` widget displays an icon-size spinning animation.
Stack | `GtkStack` is a container which only shows one of its children at a time.
StackPage | `GtkStackPage` is an auxiliary class used by `GtkStack`.
StackSidebar | A `GtkStackSidebar` uses a sidebar to switch between `GtkStack` pages.
StackSwitcher | The `GtkStackSwitcher` shows a row of buttons to switch between `GtkStack` pages.
Statusbar | A `GtkStatusbar` widget is usually placed along the bottom of an application’s main `GtkWindow`.
StringFilter | `GtkStringFilter` determines whether to include items by comparing strings to a fixed search term.
StringList | `GtkStringList` is a list model that wraps an array of strings.
StringObject | `GtkStringObject` is the type of items in a `GtkStringList`.
StringSorter | `GtkStringSorter` is a `GtkSorter` that compares strings.
StyleContext | `GtkStyleContext` stores styling information affecting a widget.
Switch | `GtkSwitch` is a “light switch” that has two states: on or off.
Text | The `GtkText` widget is a single-line text entry widget.
TextBuffer | Stores text and attributes for display in a `GtkTextView`.
TextChildAnchor | A `GtkTextChildAnchor` is a spot in a `GtkTextBuffer` where child widgets can be “anchored”.
TextMark | A `GtkTextMark` is a position in a `GtkTextbuffer` that is preserved across modifications.
TextTag | A tag that can be applied to text contained in a `GtkTextBuffer`.
TextTagTable | The collection of tags in a `GtkTextBuffer`
TextView | A widget that displays the contents of a `GtkTextBuffer`.
ToggleButton | A `GtkToggleButton` is a button which remains “pressed-in” when clicked.
Tooltip | `GtkTooltip` is an object representing a widget tooltip.
TreeExpander | `GtkTreeExpander` is a widget that provides an expander for a list.
TreeListModel | `GtkTreeListModel` is a list model that can create child models on demand.
TreeListRow | `GtkTreeListRow` is used by `GtkTreeListModel` to represent items.
TreeListRowSorter | `GtkTreeListRowSorter` is a special-purpose sorter that will apply a given sorter to the levels in a tree.
TreeModelFilter | A `GtkTreeModel` which hides parts of an underlying tree model.
TreeModelSort | A GtkTreeModel which makes an underlying tree model sortable.
TreeSelection | The selection object for GtkTreeView.
TreeStore | A tree-like data structure that can be used with the GtkTreeView.
TreeView | A widget for displaying both trees and lists.
TreeViewColumn | A visible column in a GtkTreeView widget.
Video | `GtkVideo` is a widget to show a `GtkMediaStream` with media controls.
Viewport | `GtkViewport` implements scrollability for widgets that lack their own scrolling capabilities.
VolumeButton | `GtkVolumeButton` is a `GtkScaleButton` subclass tailored for volume control.
Widget | The base class for all widgets.
WidgetPaintable | `GtkWidgetPaintable` is a `GdkPaintable` that displays the contents of a widget.
Window | A `GtkWindow` is a toplevel window which can contain other widgets.
WindowControls | `GtkWindowControls` shows window frame controls.
WindowGroup | `GtkWindowGroup` makes group of windows behave like separate applications.
WindowHandle | `GtkWindowHandle` is a titlebar area widget.

#### Interfaces

Accessible | `GtkAccessible` is an interface for describing UI elements for Assistive Technologies.
Actionable | The `GtkActionable` interface provides a convenient way of asscociating widgets with actions.
AppChooser | `GtkAppChooser` is an interface for widgets which allow the user to choose an application.
Buildable | `GtkBuildable` allows objects to extend and customize their deserialization from ui files.
BuilderScope | `GtkBuilderScope` is an interface to provide language binding support to `GtkBuilder`.
CellEditable | Interface for widgets that can be used for editing cells.
CellLayout | An interface for packing cells.
ColorChooser | `GtkColorChooser` is an interface that is implemented by widgets for choosing colors.
ConstraintTarget | The `GtkConstraintTarget` interface is implemented by objects that can be used as source or target in `GtkConstraint`s.
Editable | `GtkEditable` is an interface for text editing widgets.
FileChooser | `GtkFileChooser` is an interface that can be implemented by file selection widgets.
FontChooser | `GtkFontChooser` is an interface that can be implemented by widgets for choosing fonts.
Native | `GtkNative` is the interface implemented by all widgets that have their own `GdkSurface`.
Orientable | The `GtkOrientable` interface is implemented by all widgets that can be oriented horizontally or vertically.
PrintOperationPreview | `GtkPrintOperationPreview` is the interface that is used to implement print preview.
Root | `GtkRoot` is the interface implemented by all widgets that can act as a toplevel widget.
Scrollable | `GtkScrollable` is an interface for widgets with native scrolling ability.
SelectionModel | `GtkSelectionModel` is an interface that add support for selection to list models.
ShortcutManager | The `GtkShortcutManager` interface is used to implement shortcut scopes.
StyleProvider | `GtkStyleProvider` is an interface for style information used by `GtkStyleContext`.
TreeDragDest | Interface for Drag-and-Drop destinations in `GtkTreeView`.
TreeDragSource | Interface for Drag-and-Drop destinations in `GtkTreeView`.
TreeModel | The tree interface used by GtkTreeView.
TreeSortable | The interface for sortable models used by GtkTreeView.

#### Structs

Bitset | A `GtkBitset` represents a set of unsigned integers.
BitsetIter | An opaque, stack-allocated struct for iterating over the elements of a `GtkBitset`.
Border | A struct that specifies a border around a rectangular area.
BuildableParseContext | An opaque context struct for `GtkBuildableParser`.
BuildableParser | A sub-parser for `GtkBuildable` implementations.
CssLocation | Represents a location in a file or other source of data parsed by the CSS engine.
CssSection | Defines a part of a CSS document.
CssStyleChange |
ExpressionWatch | An opaque structure representing a watched `GtkExpression`.
PadActionEntry | Struct defining a pad action entry.
PageRange | A range of pages to print.
PaperSize | `GtkPaperSize` handles paper sizes.
PrintBackend |
RecentData | Meta-data to be passed to `gtk_recent_manager_add_full()` when registering a recently used resource.
RecentInfo | `GtkRecentInfo` contains the metadata associated with an item in the recently used files list.
RequestedSize | Represents a request of a screen object in a given orientation. These are primarily used in container implementations when allocating a natural size for children calling. See `gtk_distribute_natural_allocation()`.
Requisition | A `GtkRequisition` represents the desired size of a widget. See [GtkWidget’s geometry management section][geometry-management] for more information.
TextIter | An iterator for the contents of a `GtkTextBuffer`.
TreeIter | 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.
TreePath | An opaque structure representing a path to a row in a model.
TreeRowReference | 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()`.

#### Aliases

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

#### Enumerations

AccessibleAutocomplete | The possible values for the `GTK_ACCESSIBLE_PROPERTY_AUTOCOMPLETE` accessible property.
AccessibleInvalidState | The possible values for the `GTK_ACCESSIBLE_STATE_INVALID` accessible state.
AccessibleProperty | The possible accessible properties of a `GtkAccessible`.
AccessibleRelation | The possible accessible relations of a `GtkAccessible`.
AccessibleRole | The accessible role for a `GtkAccessible` implementation.
AccessibleSort | The possible values for the `GTK_ACCESSIBLE_PROPERTY_SORT` accessible property.
AccessibleState | The possible accessible states of a `GtkAccessible`.
AccessibleTristate | The possible values for the `GTK_ACCESSIBLE_STATE_PRESSED` accessible state.
Align | Controls how a widget deals with extra space in a single dimension.
ArrowType | Used to indicate the direction in which an arrow should point.
AssistantPageType | Determines the page role inside a `GtkAssistant`.
BaselinePosition | Baseline position in a row of widgets.
BorderStyle | Describes how the border of a UI element should be rendered.
ButtonsType | Prebuilt sets of buttons for `GtkDialog`.
CellRendererAccelMode | Determines if the edited accelerators are GTK accelerators. If they are, consumed modifiers are suppressed, only accelerators accepted by GTK are allowed, and the accelerators are rendered in the same way as they are in menus.
CellRendererMode | Identifies how the user can interact with a particular cell.
ConstraintAttribute | The widget attributes that can be used when creating a `GtkConstraint`.
ConstraintRelation | The relation between two terms of a constraint.
ConstraintStrength | The strength of a constraint, expressed as a symbolic constant.
CornerType | Specifies which corner a child widget should be placed in when packed into a `GtkScrolledWindow.`
CssParserWarning | Warnings that can occur while parsing CSS.
DeleteType | Passed to various keybinding signals for deleting text.
DirectionType | Focus movement types.
EditableProperties |
EntryIconPosition | Specifies the side of the entry at which an icon is placed.
EventSequenceState | Describes the state of a `GdkEventSequence` in a `GtkGesture`.
FileChooserAction | Describes whether a `GtkFileChooser` is being used to open existing files or to save to a possibly new file.
FilterChange | Describes changes in a filter in more detail and allows objects using the filter to optimize refiltering items.
FilterMatch | Describes the known strictness of a filter.
IconSize | Built-in icon sizes.
IconViewDropPosition | An enum for determining where a dropped item goes.
ImageType | Describes the image data representation used by a `GtkImage`.
InputPurpose | Describes primary purpose of the input widget.
Justification | Used for justifying the text inside a `GtkLabel` widget.
LevelBarMode | Describes how `GtkLevelBar` contents should be rendered.
License | The type of license for an application.
MessageType | The type of message being displayed in a `GtkMessageDialog`.
MovementStep | Passed as argument to various keybinding signals for moving the cursor position.
NotebookTab | The parameter used in the action signals of `GtkNotebook`.
NumberUpLayout | Used to determine the layout of pages on a sheet when printing multiple pages per sheet.
Ordering | Describes the way two values can be compared.
Orientation | Represents the orientation of widgets and other objects.
Overflow | Defines how content overflowing a given area should be handled.
PackType | Represents the packing location of a children in its parent.
PadActionType | The type of a pad action.
PageOrientation | See also `gtk_print_settings_set_orientation()`.
PageSet | See also `gtk_print_job_set_page_set()`.
PanDirection | Describes the panning direction of a `GtkGesturePan`
PolicyType | Determines how the size should be computed to achieve the one of the visibility mode for the scrollbars.
PositionType | Describes which edge of a widget a certain feature is positioned at.
PrintDuplex | See also `gtk_print_settings_set_duplex()`.
PrintOperationAction | Determines what action the print operation should perform.
PrintOperationResult | The result of a print operation.
PrintPages | See also `gtk_print_job_set_pages()`
PrintQuality | See also `gtk_print_settings_set_quality()`.
PrintStatus | The status gives a rough indication of the completion of a running print operation.
PropagationLimit | Describes limits of a `GtkEventController` for handling events targeting other widgets.
PropagationPhase | Describes the stage at which events are fed into a `GtkEventController`.
ResponseType | Predefined values for use as response ids in `gtk_dialog_add_button()`.
RevealerTransitionType | These enumeration values describe the possible transitions when the child of a `GtkRevealer` widget is shown or hidden.
ScrollablePolicy | Defines the policy to be used in a scrollable widget when updating the scrolled window adjustments in a given orientation.
ScrollStep | Passed as argument to various keybinding signals.
ScrollType | Scrolling types.
SelectionMode | Used to control what selections users are allowed to make.
SensitivityType | Determines how GTK handles the sensitivity of various controls, such as combo box buttons.
ShortcutScope | Describes where `GtkShortcut`s added to a `GtkShortcutController` get handled.
ShortcutType | GtkShortcutType specifies the kind of shortcut that is being described.
SizeGroupMode | The mode of the size group determines the directions in which the size group affects the requested sizes of its component widgets.
SizeRequestMode | Specifies a preference for height-for-width or width-for-height geometry management.
SorterChange | Describes changes in a sorter in more detail and allows users to optimize resorting.
SorterOrder | Describes the type of order that a `GtkSorter` may produce.
SortType | Determines the direction of a sort.
SpinButtonUpdatePolicy | Determines whether the spin button displays values outside the adjustment bounds.
SpinType | The values of the GtkSpinType enumeration are used to specify the change to make in `gtk_spin_button_spin()`.
StackTransitionType | Possible transitions between pages in a `GtkStack` widget.
StringFilterMatchMode | Specifies how search strings are matched inside text.
SystemSetting | Values that can be passed to the `Gtk.WidgetClass.system_setting_changed` vfunc.
TextDirection | Reading directions for text.
TextExtendSelection | Granularity types that extend the text selection. Use the `GtkTextView::extend-selection` signal to customize the selection.
TextViewLayer | Used to reference the layers of `GtkTextView` for the purpose of customized drawing with the ::snapshot_layer vfunc.
TextWindowType | Used to reference the parts of `GtkTextView`.
TreeViewColumnSizing | 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.
TreeViewDropPosition | An enum for determining where a dropped row goes.
TreeViewGridLines | Used to indicate which grid lines to draw in a tree view.
Unit | See also `gtk_print_settings_set_paper_width()`.
WrapMode | Describes a type of line wrapping.

#### Bitfields

ApplicationInhibitFlags | Types of user actions that may be blocked by `GtkApplication`.
BuilderClosureFlags | The list of flags that can be passed to `gtk_builder_create_closure()`.
CellRendererState | Tells how a cell is to be rendered.
DebugFlags | Flags to use with `gtk_set_debug_flags()`.
DialogFlags | Flags used to influence dialog construction.
EventControllerScrollFlags | Describes the behavior of a `GtkEventControllerScroll`.
FontChooserLevel | Specifies the granularity of font selection that is desired in a `GtkFontChooser`.
IconLookupFlags | Used to specify options for `gtk_icon_theme_lookup_icon()`.
InputHints | Describes hints that might be taken into account by input methods or applications.
PickFlags | Flags that influence the behavior of `gtk_widget_pick()`.
PopoverMenuFlags | Flags that affect how popover menus are created from a menu model.
PrintCapabilities | Specifies which features the print dialog should offer.
ShortcutActionFlags | List of flags that can be passed to action activation.
StateFlags | Describes a widget state.
StyleContextPrintFlags | Flags that modify the behavior of `gtk_style_context_to_string()`.
TextSearchFlags | Flags affecting how a search is done.
TreeModelFlags | These flags indicate various properties of a `GtkTreeModel`.

#### Error Domains

BuilderError | Error codes that identify various errors that can occur while using `GtkBuilder`.
ConstraintVflParserError | Domain for VFL parsing errors.
CssParserError | Errors that can occur while parsing CSS.
FileChooserError | These identify the various errors that can occur while calling `GtkFileChooser` functions.
IconThemeError | Error codes for `GtkIconTheme` operations.
PrintError | Error codes that identify various errors that can occur while using the GTK printing support.
RecentManagerError | Error codes for `GtkRecentManager` operations.

#### Callbacks

AssistantPageFunc | Type of callback used to calculate the next page in a `GtkAssistant`.
CellAllocCallback | 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()`.
CellCallback | The type of the callback functions used for iterating over the cell renderers of a `GtkCellArea`, see `gtk_cell_area_foreach()`.
CellLayoutDataFunc | A function which should set the value of `cell_layout`’s cell renderer(s) as appropriate.
CustomAllocateFunc | A function to be used by `GtkCustomLayout` to allocate a widget.
CustomFilterFunc | User function that is called to determine if the `item` should be matched.
CustomMeasureFunc | A function to be used by `GtkCustomLayout` to measure a widget.
CustomRequestModeFunc | Queries a widget for its preferred size request mode.
DrawingAreaDrawFunc | Whenever `drawing_area` needs to redraw, this function will be called.
EntryCompletionMatchFunc | A function which decides whether the row indicated by `iter` matches a given `key`, and should be displayed as a possible completion for `key`.
ExpressionNotify | Callback called by `gtk_expression_watch()` when the expression value changes.
FlowBoxCreateWidgetFunc | Called for flow boxes that are bound to a `GListModel`.
FlowBoxFilterFunc | A function that will be called whenever a child changes or is added.
FlowBoxForeachFunc | A function used by `gtk_flow_box_selected_foreach()`.
FlowBoxSortFunc | A function to compare two children to determine which should come first.
FontFilterFunc | The type of function that is used for deciding what fonts get shown in a `GtkFontChooser`.
IconViewForeachFunc | A function used by `gtk_icon_view_selected_foreach()` to map all selected rows.
ListBoxCreateWidgetFunc | 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.
ListBoxFilterFunc | Will be called whenever the row changes or is added and lets you control if the row should be visible or not.
ListBoxForeachFunc | A function used by `gtk_list_box_selected_foreach()`.
ListBoxSortFunc | Compare two rows to determine which should be first.
ListBoxUpdateHeaderFunc | Whenever `row` changes or which row is before `row` changes this is called, which lets you update the header on `row`.
MapListModelMapFunc | User function that is called to map an `item` of the original model to an item expected by the map model.
MenuButtonCreatePopupFunc | User-provided callback function to create a popup for a `GtkMenuButton` on demand.
PageSetupDoneFunc | The type of function that is passed to `gtk_print_run_page_setup_dialog_async()`.
PrinterFunc | The type of function passed to `gtk_enumerate_printers()`.
PrintJobCompleteFunc | The type of callback that is passed to `gtk_print_job_send()`.
PrintSettingsFunc |
ScaleFormatValueFunc |
ShortcutFunc | Prototype for shortcuts based on user callbacks.
TextCharPredicate | The predicate function used by `gtk_text_iter_forward_find_char()` and `gtk_text_iter_backward_find_char()`.
TextTagTableForeach | A function used with `gtk_text_tag_table_foreach()`, to iterate over every `GtkTextTag` inside a `GtkTextTagTable`.
TickCallback | Callback type for adding a function to update animations. See `gtk_widget_add_tick_callback()`.
TreeCellDataFunc | A function to set the properties of a cell instead of just using the straight mapping between the cell and the model.
TreeIterCompareFunc | 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.
TreeListModelCreateModelFunc | Prototype of the function called to create new child models when `gtk_tree_list_row_set_expanded()` is called.
TreeModelFilterModifyFunc | 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`.
TreeModelFilterVisibleFunc | A function which decides whether the row indicated by `iter` is visible.
TreeModelForeachFunc | Type of the callback passed to `gtk_tree_model_foreach()` to iterate over the rows in a tree model.
TreeSelectionForeachFunc | 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.
TreeSelectionFunc | 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.
TreeViewColumnDropFunc | 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.
TreeViewMappingFunc | Function used for `gtk_tree_view_map_expanded_rows()`.
TreeViewRowSeparatorFunc | 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.
TreeViewSearchEqualFunc | 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.
WidgetActionActivateFunc | The type of the callback functions used for activating actions installed with `gtk_widget_class_install_action()`.

#### Functions

accelerator_get_default_mod_mask | Gets the modifier mask.
accelerator_get_label | Converts an accelerator keyval and modifier mask into a string which can be used to represent the accelerator to the user.
accelerator_get_label_with_keycode | Converts an accelerator keyval and modifier mask into a string that can be displayed to the user.
accelerator_name | Converts an accelerator keyval and modifier mask into a string parseable by `gtk_accelerator_parse()`.
accelerator_name_with_keycode | Converts an accelerator keyval and modifier mask into a string parseable by `gtk_accelerator_parse_with_keycode()`.
accelerator_parse | Parses a string representing an accelerator.
accelerator_parse_with_keycode | Parses a string representing an accelerator.
accelerator_valid | Determines whether a given keyval and modifier mask constitute a valid keyboard accelerator.
check_version | Checks that the GTK library in use is compatible with the given version.
css_parser_error_quark |
css_parser_warning_quark |
disable_setlocale | Prevents `gtk_init()` and `gtk_init_check()` from automatically calling `setlocale (LC_ALL, "")`.
distribute_natural_allocation | Distributes `extra_space` to child `sizes` by bringing smaller children up to natural size first.
enumerate_printers | Calls a function for all `GtkPrinter`s.
get_binary_age | Returns the binary age as passed to `libtool`.
get_debug_flags | Returns the GTK debug flags that are currently active.
get_default_language | Returns the `PangoLanguage` for the default language currently in effect.
get_interface_age | Returns the interface age as passed to `libtool`.
get_locale_direction | Get the direction of the current locale. This is the expected reading direction for text and UI.
get_major_version | Returns the major version number of the GTK library.
get_micro_version | Returns the micro version number of the GTK library.
get_minor_version | Returns the minor version number of the GTK library.
hsv_to_rgb | Converts a color from HSV space to RGB.
init | Call this function before using any other GTK functions in your GUI applications. It will initialize everything needed to operate the toolkit and parses some standard command line options.
init_check | This function does the same work as `gtk_init()` with only a single change: It does not terminate the program if the windowing system can’t be initialized. Instead it returns `FALSE` on failure.
is_initialized | Use this function to check if GTK has been initialized with `gtk_init()` or `gtk_init_check()`.
param_spec_expression | Creates a new `GParamSpec` instance for a property holding a `GtkExpression`.
print_run_page_setup_dialog | Runs a page setup dialog, letting the user modify the values from `page_setup`. If the user cancels the dialog, the returned `GtkPageSetup` is identical to the passed in `page_setup`, otherwise it contains the modifications done in the dialog.
print_run_page_setup_dialog_async | Runs a page setup dialog, letting the user modify the values from `page_setup`.
render_activity | Renders an activity indicator (such as in `GtkSpinner`). The state `GTK_STATE_FLAG_CHECKED` determines whether there is activity going on.
render_arrow | Renders an arrow pointing to `angle`.
render_background | Renders the background of an element.
render_check | Renders a checkmark (as in a `GtkCheckButton`).
render_expander | 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.
render_focus | Renders a focus indicator on the rectangle determined by `x`, `y`, `width`, `height`.
render_frame | Renders a frame around the rectangle defined by `x`, `y`, `width`, `height`.
render_handle | Renders a handle (as in `GtkPaned` and `GtkWindow`’s resize grip), in the rectangle determined by `x`, `y`, `width`, `height`.
render_icon | Renders the icon in `texture` at the specified `x` and `y` coordinates.
render_layout | Renders `layout` on the coordinates `x`, `y`.
render_line | Renders a line from (x0, y0) to (x1, y1).
render_option | 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.
rgb_to_hsv | Converts a color from RGB space to HSV.
set_debug_flags | Sets the GTK debug flags.
show_about_dialog | A convenience function for showing an application’s about dialog.
show_uri | This function launches the default application for showing a given uri, or shows an error dialog if that fails.
show_uri_full | This function launches the default application for showing a given uri.
show_uri_full_finish | Finishes the `gtk_show_uri()` call and returns the result of the operation.
test_accessible_assertion_message_role |
test_accessible_check_property | Checks whether the accessible `property` of `accessible` is set to a specific value.
test_accessible_check_relation | Checks whether the accessible `relation` of `accessible` is set to a specific value.
test_accessible_check_state | Checks whether the accessible `state` of `accessible` is set to a specific value.
test_accessible_has_property | Checks whether the `GtkAccessible` has `property` set.
test_accessible_has_relation | Checks whether the `GtkAccessible` has `relation` set.
test_accessible_has_role | Checks whether the `GtkAccessible:accessible-role` of the accessible is `role`.
test_accessible_has_state | Checks whether the `GtkAccessible` has `state` set.
test_init | This function is used to initialize a GTK test program.
test_list_all_types | Return the type ids that have been registered after calling `gtk_test_register_all_types()`.
test_register_all_types | Force registration of all core GTK object types.
test_widget_wait_for_draw | Enters the main loop and waits for `widget` to be “drawn”.
tree_create_row_drag_content | Creates a content provider for dragging `path` from `tree_model`.
tree_get_row_drag_data | Obtains a `tree_model` and `path` from value of target type `GTK_TYPE_TREE_ROW_DATA`.
value_dup_expression | Retrieves the `GtkExpression` stored inside the given `value`, and acquires a reference to it.
value_get_expression | Retrieves the `GtkExpression` stored inside the given `value`.
value_set_expression | Stores the given `GtkExpression` inside `value`.
value_take_expression | Stores the given `GtkExpression` inside `value`.

#### Function Macros

BUILDER_WARN_INVALID_CHILD_TYPE | This macro should be used to emit a warning about and unexpected `type` value in a `GtkBuildable` add_child implementation.
CELL_AREA_WARN_INVALID_CELL_PROPERTY_ID | This macro should be used to emit a standard warning about unexpected properties in `set_cell_property()` and `get_cell_property()` implementations.
CHECK_VERSION | Returns `TRUE` if the version of the GTK header files is the same as or newer than the passed-in version.
DEBUG_CHECK |
NOTE |
test_accessible_assert_role | Checks whether a `GtkAccessible` implementation has the given `role`, and raises an assertion if the condition is failed.
VALUE_HOLDS_EXPRESSION | Evaluates to `TRUE` if `value` was initialized with `GTK_TYPE_EXPRESSION`.
widget_class_bind_template_callback | Binds a callback function defined in a template to the `widget_class`.
widget_class_bind_template_child | Binds a child widget defined in a template to the `widget_class`.
widget_class_bind_template_child_internal | Binds a child widget defined in a template to the `widget_class`, and also makes it available as an internal child in GtkBuilder, under the name `member_name`.
widget_class_bind_template_child_internal_private | Binds a child widget defined in a template to the `widget_class`, and also makes it available as an internal child in GtkBuilder, under the name `member_name`.
widget_class_bind_template_child_private | Binds a child widget defined in a template to the `widget_class`.

#### Constants

ACCESSIBLE_VALUE_UNDEFINED | An undefined value. The accessible attribute is either unset, or its value is undefined.
BINARY_AGE | 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.
IM_MODULE_EXTENSION_POINT_NAME |
INPUT_ERROR | Constant to return from a signal handler for the ::input signal in case of conversion failure.
INTERFACE_AGE | 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.
INVALID_LIST_POSITION | The value used to refer to a guaranteed invalid position in a `GListModel`.
LEVEL_BAR_OFFSET_FULL | The name used for the stock full offset included by `GtkLevelBar`.
LEVEL_BAR_OFFSET_HIGH | The name used for the stock high offset included by `GtkLevelBar`.
LEVEL_BAR_OFFSET_LOW | The name used for the stock low offset included by `GtkLevelBar`.
MAJOR_VERSION | 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.
MAX_COMPOSE_LEN |
MEDIA_FILE_EXTENSION_POINT_NAME |
MICRO_VERSION | 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.
MINOR_VERSION | 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.
PAPER_NAME_A3 | Name for the A3 paper size.
PAPER_NAME_A4 | Name for the A4 paper size.
PAPER_NAME_A5 | Name for the A5 paper size.
PAPER_NAME_B5 | Name for the B5 paper size.
PAPER_NAME_EXECUTIVE | Name for the Executive paper size.
PAPER_NAME_LEGAL | Name for the Legal paper size.
PAPER_NAME_LETTER | Name for the Letter paper size.
PRINT_SETTINGS_COLLATE |
PRINT_SETTINGS_DEFAULT_SOURCE |
PRINT_SETTINGS_DITHER |
PRINT_SETTINGS_DUPLEX |
PRINT_SETTINGS_FINISHINGS |
PRINT_SETTINGS_MEDIA_TYPE |
PRINT_SETTINGS_N_COPIES |
PRINT_SETTINGS_NUMBER_UP |
PRINT_SETTINGS_NUMBER_UP_LAYOUT |
PRINT_SETTINGS_ORIENTATION |
PRINT_SETTINGS_OUTPUT_BASENAME | 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.
PRINT_SETTINGS_OUTPUT_BIN |
PRINT_SETTINGS_OUTPUT_DIR | The key used by the “Print to file” printer to store the directory to which the output should be written.
PRINT_SETTINGS_OUTPUT_FILE_FORMAT | The key used by the “Print to file” printer to store the format of the output. The supported values are “PS” and “PDF”.
PRINT_SETTINGS_OUTPUT_URI | 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.
PRINT_SETTINGS_PAGE_RANGES |
PRINT_SETTINGS_PAGE_SET |
PRINT_SETTINGS_PAPER_FORMAT |
PRINT_SETTINGS_PAPER_HEIGHT |
PRINT_SETTINGS_PAPER_WIDTH |
PRINT_SETTINGS_PRINT_PAGES |
PRINT_SETTINGS_PRINTER |
PRINT_SETTINGS_PRINTER_LPI |
PRINT_SETTINGS_QUALITY |
PRINT_SETTINGS_RESOLUTION |
PRINT_SETTINGS_RESOLUTION_X |
PRINT_SETTINGS_RESOLUTION_Y |
PRINT_SETTINGS_REVERSE |
PRINT_SETTINGS_SCALE |
PRINT_SETTINGS_USE_COLOR |
PRINT_SETTINGS_WIN32_DRIVER_EXTRA |
PRINT_SETTINGS_WIN32_DRIVER_VERSION |
PRIORITY_RESIZE | Use this priority for functionality related to size allocation.
STYLE_PROVIDER_PRIORITY_APPLICATION | A priority that can be used when adding a `GtkStyleProvider` for application-specific style information.
STYLE_PROVIDER_PRIORITY_FALLBACK | The priority used for default style information that is used in the absence of themes.
STYLE_PROVIDER_PRIORITY_SETTINGS | The priority used for style information provided via `GtkSettings`.
STYLE_PROVIDER_PRIORITY_THEME | The priority used for style information provided by themes.
STYLE_PROVIDER_PRIORITY_USER | The priority used for the style information from `$XDG_CONFIG_HOME/gtk-4.0/gtk.css`.
TEXT_VIEW_PRIORITY_VALIDATE | The priority at which the text view validates onscreen lines in an idle job in the background.
TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID | Uses the default sort function in a `GtkTreeSortable`.
TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID | Disables sorting in a `GtkTreeSortable`.