MessageDialog

open class MessageDialog(pointer: <Error class: unknown class><<Error class: unknown class>>) : Dialog

GtkMessageDialog presents a dialog with some message text.

An example GtkMessageDialog

It’s simply a convenience widget; you could construct the equivalent of GtkMessageDialog from GtkDialog without too much effort, but GtkMessageDialog saves typing.

The easiest way to do a modal message dialog is to use the %GTK_DIALOG_MODAL flag, which will call method@Gtk.Window.set_modal internally. The dialog will prevent interaction with the parent window until it's hidden or destroyed. You can use the signal@Gtk.Dialog::response signal to know when the user dismissed the dialog.

An example for using a modal dialog:

GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL;
dialog = gtk_message_dialog_new (parent_window,
flags,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"Error reading “%s”: %s",
filename,
g_strerror (errno));
// Destroy the dialog when the user responds to it
// (e.g. clicks a button)

g_signal_connect (dialog, "response",
G_CALLBACK (gtk_window_destroy),
NULL);

You might do a non-modal GtkMessageDialog simply by omitting the %GTK_DIALOG_MODAL flag:

GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT;
dialog = gtk_message_dialog_new (parent_window,
flags,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"Error reading “%s”: %s",
filename,
g_strerror (errno));

// Destroy the dialog when the user responds to it
// (e.g. clicks a button)
g_signal_connect (dialog, "response",
G_CALLBACK (gtk_window_destroy),
NULL);

GtkMessageDialog as GtkBuildable

The GtkMessageDialog implementation of the GtkBuildable interface exposes the message area as an internal child with the name “message_area”.

Skipped during bindings generation

  • method format_secondary_markup: Varargs parameter is not supported

  • method format_secondary_text: Varargs parameter is not supported

  • method buttons: Property has no getter nor setter

  • method message-type: Property has no getter nor setter

  • method secondary-text: Property has no getter nor setter

  • method secondary-use-markup: Property has no getter nor setter

  • method text: Property has no getter nor setter

  • method use-markup: Property has no getter nor setter

  • constructor new: Varargs parameter is not supported

  • constructor new_with_markup: Varargs parameter is not supported

Constructors

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constructor(pointer: <Error class: unknown class><<Error class: unknown class>>)

Types

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object Companion

Properties

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The accessible role of the given GtkAccessible implementation.

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The GtkApplication associated with the window.

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open var canFocus: Boolean

Whether the widget or any of its descendents can accept the input focus.

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open var canTarget: Boolean

Whether the widget can receive pointer events.

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open var child: Widget?

The child widget.

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A list of css classes applied to this widget.

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open val cssName: String

The name of this widget in the CSS tree.

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open var cursor: <Error class: unknown class>?

The cursor used by @widget.

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open var decorated: Boolean

Whether the window should have a frame (also known as decorations).

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The default widget.

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open var deletable: Boolean

Whether the window frame should have a close button.

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If this window should be destroyed when the parent is destroyed.

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open var focusable: Boolean

Whether this widget itself will accept the input focus.

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Whether the widget should grab focus when it is clicked with the mouse.

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Whether 'focus rectangles' are currently visible in this window.

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open var focusWidget: Widget?

The focus widget.

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open override val gtkAccessiblePointer: <Error class: unknown class><<Error class: unknown class>>
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open override val gtkBuildablePointer: <Error class: unknown class><<Error class: unknown class>>
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open override val gtkConstraintTargetPointer: <Error class: unknown class><<Error class: unknown class>>
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val gtkDialogPointer: <Error class: unknown class><<Error class: unknown class>>
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val gtkMessageDialogPointer: <Error class: unknown class><<Error class: unknown class>>
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open override val gtkNativePointer: <Error class: unknown class><<Error class: unknown class>>
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open override val gtkRootPointer: <Error class: unknown class><<Error class: unknown class>>
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open override val gtkShortcutManagerPointer: <Error class: unknown class><<Error class: unknown class>>
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val gtkWidgetPointer: <Error class: unknown class><<Error class: unknown class>>
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val gtkWindowPointer: <Error class: unknown class><<Error class: unknown class>>
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open var halign: Align

How to distribute horizontal space if widget gets extra space.

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Whether the window frame should handle F10 for activating menubars.

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Enables or disables the emission of the ::query-tooltip signal on @widget.

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open var hexpand: Boolean

Whether to expand horizontally.

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Whether to use the hexpand property.

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If this window should be hidden when the users clicks the close button.

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open var iconName: String?

Specifies the name of the themed icon to use as the window icon.

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The GtkLayoutManager instance to use to compute the preferred size of the widget, and allocate its children.

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open var marginBottom: <Error class: unknown class>

Margin on bottom side of widget.

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open var marginEnd: <Error class: unknown class>

Margin on end of widget, horizontally.

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open var marginStart: <Error class: unknown class>

Margin on start of widget, horizontally.

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open var marginTop: <Error class: unknown class>

Margin on top side of widget.

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The GtkBox that corresponds to the message area of this dialog.

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Whether mnemonics are currently visible in this window.

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open var modal: Boolean

If true, the window is modal.

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open var name: String

The name of the widget.

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open var opacity: <Error class: unknown class>

The requested opacity of the widget.

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open var overflow: Overflow

How content outside the widget's content area is treated.

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open val parent: Widget?

The parent widget of this widget.

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Whether the widget will receive the default action when it is focused.

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open var resizable: Boolean

If true, users can resize the window.

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open val root: Root?

The GtkRoot widget of the widget tree containing this widget.

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open val scaleFactor: <Error class: unknown class>

The scale factor of the widget.

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open var title: String?

The title of the window.

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open var titlebar: Widget?

The titlebar widget.

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Sets the text of tooltip to be the given string, which is marked up with Pango markup.

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open var tooltipText: String?

Sets the text of tooltip to be the given string.

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open var transientFor: Window?

The transient parent of the window.

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open var valign: Align

How to distribute vertical space if widget gets extra space.

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open var vexpand: Boolean

Whether to expand vertically.

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Whether to use the vexpand property.

Functions

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open fun actionSetEnabled(actionName: String, enabled: Boolean)

Enable or disable an action installed with gtk_widget_class_install_action().

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open fun activateActionIfExists(name: String, args: <Error class: unknown class>? = null): Boolean

Looks up the action in the action groups associated with

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open fun activateDefault()

Activates the default.activate action from @widget.

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For widgets that can be “activated” (buttons, menu items, etc.), this function activates them.

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open fun addActionWidget(child: Widget, responseId: <Error class: unknown class>)

Adds an activatable widget to the action area of a GtkDialog.

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open fun addButton(buttonText: String, responseId: <Error class: unknown class>): Widget

Adds a button with the given text.

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open fun addController(controller: EventController)

Adds @controller to @widget so that it will receive events.

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open fun addCssClass(cssClass: String)

Adds a style class to @widget.

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open fun addMnemonicLabel(label: Widget)

Adds a widget to the list of mnemonic labels for this widget.

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open fun addTickCallback(callback: TickCallback): <Error class: unknown class>

Queues an animation frame update and adds a callback to be called before each frame.

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open fun allocate(width: <Error class: unknown class>, height: <Error class: unknown class>, baseline: <Error class: unknown class>, transform: <Error class: unknown class>? = null)

This function is only used by GtkWidget subclasses, to assign a size, position and (optionally) baseline to their child widgets.

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open fun announce(message: String, priority: AccessibleAnnouncementPriority)

Requests the user's screen reader to announce the given message.

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open fun childFocus(direction: DirectionType): Boolean

Called by widgets as the user moves around the window using keyboard shortcuts.

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open fun close()

Requests that the window is closed.

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open fun computeBounds(target: Widget, outBounds: <Error class: unknown class>): Boolean

Computes the bounds for @widget in the coordinate space of @target.

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open fun computeExpand(orientation: Orientation): Boolean

Computes whether a container should give this widget extra space when possible.

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open fun computePoint(target: Widget, point: <Error class: unknown class>, outPoint: <Error class: unknown class>): Boolean

Translates the given @point in @widget's coordinates to coordinates relative to @target’s coordinate system.

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open fun computeTransform(target: Widget, outTransform: <Error class: unknown class>): Boolean

Computes a matrix suitable to describe a transformation from

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fun connectActivateDefault(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when the user activates the default widget of @window.

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fun connectActivateFocus(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when the user activates the currently focused widget of @window.

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fun connectClose(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when the user uses a keybinding to close the dialog.

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fun connectCloseRequest(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Boolean): <Error class: unknown class>

Emitted when the user clicks on the close button of the window.

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fun connectDestroy(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Signals that all holders of a reference to the widget should release the reference that they hold.

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fun connectDirectionChanged(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (previousDirection: TextDirection) -> Unit): <Error class: unknown class>

Emitted when the text direction of a widget changes.

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fun connectEnableDebugging(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (toggle: Boolean) -> Boolean): <Error class: unknown class>

Emitted when the user enables or disables interactive debugging.

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fun connectHide(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is hidden.

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fun connectKeynavFailed(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (direction: DirectionType) -> Boolean): <Error class: unknown class>

Emitted if keyboard navigation fails.

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fun connectKeysChanged(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

emitted when the set of accelerators or mnemonics that are associated with @window changes.

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fun connectMap(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is going to be mapped.

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fun connectMnemonicActivate(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (groupCycling: Boolean) -> Boolean): <Error class: unknown class>

Emitted when a widget is activated via a mnemonic.

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fun connectMoveFocus(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (direction: DirectionType) -> Unit): <Error class: unknown class>

Emitted when the focus is moved.

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fun connectQueryTooltip(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (<Error class: unknown class>, <Error class: unknown class>, keyboardMode: Boolean, tooltip: Tooltip) -> Boolean): <Error class: unknown class>

Emitted when the widget’s tooltip is about to be shown.

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fun connectRealize(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is associated with a GdkSurface.

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fun connectResponse(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (<Error class: unknown class>) -> Unit): <Error class: unknown class>

Emitted when an action widget is clicked.

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fun connectShow(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is shown.

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fun connectStateFlagsChanged(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (flags: StateFlags) -> Unit): <Error class: unknown class>

Emitted when the widget state changes.

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fun connectUnmap(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is going to be unmapped.

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fun connectUnrealize(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when the GdkSurface associated with @widget is destroyed.

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open fun contains(x: <Error class: unknown class>, y: <Error class: unknown class>): Boolean

Tests if the point at (@x, @y) is contained in @widget.

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open fun createPangoContext(): <Error class: unknown class>

Creates a new PangoContext with the appropriate font map, font options, font description, and base direction for drawing text for this widget.

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open fun createPangoLayout(text: String? = null): <Error class: unknown class>

Creates a new PangoLayout with the appropriate font map, font description, and base direction for drawing text for this widget.

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open fun destroy()

Drop the internal reference GTK holds on toplevel windows.

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open fun disposeTemplate(widgetType: <Error class: unknown class>)

Clears the template children for the given widget.

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open fun dragCheckThreshold(startX: <Error class: unknown class>, startY: <Error class: unknown class>, currentX: <Error class: unknown class>, currentY: <Error class: unknown class>): Boolean

Checks to see if a drag movement has passed the GTK drag threshold.

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open fun errorBell()

Notifies the user about an input-related error on this widget.

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open fun fullscreen()

Asks to place @window in the fullscreen state.

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open fun fullscreenOnMonitor(monitor: <Error class: unknown class>)

Asks to place @window in the fullscreen state on the given @monitor.

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Retrieves the accessible parent for an accessible object.

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Retrieves the accessible role of an accessible object.

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open fun getAllocatedBaseline(): <Error class: unknown class>

Returns the baseline that has currently been allocated to @widget.

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open fun getAllocatedHeight(): <Error class: unknown class>

Returns the height that has currently been allocated to @widget.

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open fun getAllocatedWidth(): <Error class: unknown class>

Returns the width that has currently been allocated to @widget.

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open fun getAncestor(widgetType: <Error class: unknown class>): Widget?

Gets the first ancestor of @widget with type @widget_type.

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Retrieves the accessible implementation for the given GtkAccessible.

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open fun getBaseline(): <Error class: unknown class>

Returns the baseline that has currently been allocated to @widget.

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open fun getBuildableId(): String?

Gets the ID of the @buildable object.

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Gets the value set with gtk_widget_set_child_visible().

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open fun getClipboard(): <Error class: unknown class>

Gets the clipboard object for @widget.

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open fun getColor(color: <Error class: unknown class>)

Gets the current foreground color for the widget’s CSS style.

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open fun getContentArea(): Box

Returns the content area of @dialog.

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Gets the reading direction for a particular widget.

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open fun getDisplay(): <Error class: unknown class>

Get the GdkDisplay for the toplevel window associated with this widget.

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Retrieves the first accessible child of an accessible object.

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open fun getFirstChild(): Widget?

Returns the widget’s first child.

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open fun getFocus(): Widget?

Retrieves the current focused widget within the root.

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open fun getFocusChild(): Widget?

Returns the current focus child of @widget.

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open fun getFontMap(): <Error class: unknown class>?

Gets the font map of @widget.

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open fun getFrameClock(): <Error class: unknown class>?

Obtains the frame clock for a widget.

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open fun getGroup(): WindowGroup

Returns the group for @window.

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Returns the header bar of @dialog.

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open fun getHeight(): <Error class: unknown class>

Returns the content height of the widget.

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open fun getLastChild(): Widget?

Returns the widget’s last child.

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open fun getMapped(): Boolean

Whether the widget is mapped.

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open fun getNative(): Native?

Returns the nearest GtkNative ancestor of @widget.

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Retrieves the next accessible sibling of an accessible object

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open fun getNextSibling(): Widget?

Returns the widget’s next sibling.

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open fun getPangoContext(): <Error class: unknown class>

Gets a PangoContext with the appropriate font map, font description, and base direction for this widget.

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Query a platform state, such as focus.

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open fun getPreferredSize(minimumSize: Requisition?, naturalSize: Requisition?)

Retrieves the minimum and natural size of a widget, taking into account the widget’s preference for height-for-width management.

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open fun getPrevSibling(): Widget?

Returns the widget’s previous sibling.

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open fun getPrimaryClipboard(): <Error class: unknown class>

Gets the primary clipboard of @widget.

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open fun getRealized(): Boolean

Determines whether @widget is realized.

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open fun getRenderer(): <Error class: unknown class>?

Returns the renderer that is used for this GtkNative.

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Gets whether the widget prefers a height-for-width layout or a width-for-height layout.

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open fun getResponseForWidget(widget: Widget): <Error class: unknown class>

Gets the response id of a widget in the action area of a dialog.

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open fun getRootDisplay(): <Error class: unknown class>

Returns the display that this GtkRoot is on.

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open fun getSensitive(): Boolean

Returns the widget’s sensitivity.

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open fun getSettings(): Settings

Gets the settings object holding the settings used for this widget.

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open fun getSize(orientation: Orientation): <Error class: unknown class>

Returns the content width or height of the widget.

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Returns the widget state as a flag set.

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Returns the style context associated to @widget.

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open fun getSurface(): <Error class: unknown class>?

Returns the surface of this GtkNative.

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open fun getTemplateChild(widgetType: <Error class: unknown class>, name: String): <Error class: unknown class>

Fetch an object build from the template XML for @widget_type in this @widget instance.

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open fun getVisible(): Boolean

Determines whether the widget is visible.

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open fun getWidgetForResponse(responseId: <Error class: unknown class>): Widget?

Gets the widget button that uses the given response ID in the action area of a dialog.

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open fun getWidth(): <Error class: unknown class>

Returns the content width of the widget.

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open fun grabFocus(): Boolean

Causes @widget to have the keyboard focus for the GtkWindow it's inside.

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open fun hasCssClass(cssClass: String): Boolean

Returns whether @css_class is currently applied to @widget.

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open fun hasDefault(): Boolean

Determines whether @widget is the current default widget within its toplevel.

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open fun hasFocus(): Boolean

Determines if the widget has the global input focus.

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open fun hasGroup(): Boolean

Returns whether @window has an explicit window group.

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Determines if the widget should show a visible indication that it has the global input focus.

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open fun hide()

Reverses the effects of gtk_widget_show().

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Returns whether the widget is currently being destroyed.

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open fun initTemplate()

Creates and initializes child widgets defined in templates.

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open fun insertActionGroup(name: String, group: <Error class: unknown class>? = null)

Inserts @group into @widget.

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open fun insertAfter(parent: Widget, previousSibling: Widget? = null)

Inserts @widget into the child widget list of @parent.

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open fun insertBefore(parent: Widget, nextSibling: Widget? = null)

Inserts @widget into the child widget list of @parent.

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open fun isActive(): Boolean

Returns whether the window is part of the current active toplevel.

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open fun isAncestor(ancestor: Widget): Boolean

Determines whether @widget is somewhere inside @ancestor, possibly with intermediate containers.

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open fun isDrawable(): Boolean

Determines whether @widget can be drawn to.

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open fun isFocus(): Boolean

Determines if the widget is the focus widget within its toplevel.

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open fun isFullscreen(): Boolean

Retrieves the current fullscreen state of @window.

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open fun isMaximized(): Boolean

Retrieves the current maximized state of @window.

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open fun isSensitive(): Boolean

Returns the widget’s effective sensitivity.

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open fun isSuspended(): Boolean

Retrieves the current suspended state of @window.

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open fun isVisible(): Boolean

Determines whether the widget and all its parents are marked as visible.

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open fun keynavFailed(direction: DirectionType): Boolean

Emits the ::keynav-failed signal on the widget.

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open fun listMnemonicLabels(): <Error class: unknown class>

Returns the widgets for which this widget is the target of a mnemonic.

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open fun map()

Causes a widget to be mapped if it isn’t already.

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open fun maximize()

Asks to maximize @window, so that it fills the screen.

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open fun minimize()

Asks to minimize the specified @window.

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open fun mnemonicActivate(groupCycling: Boolean): Boolean

Emits the ::mnemonic-activate signal.

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open fun nativeRealize()

Realizes a GtkNative.

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open fun nativeUnrealize()

Unrealizes a GtkNative.

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open fun observeChildren(): <Error class: unknown class>

Returns a GListModel to track the children of @widget.

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open fun observeControllers(): <Error class: unknown class>

Returns a GListModel to track the class@Gtk.EventControllers of @widget.

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open fun pick(x: <Error class: unknown class>, y: <Error class: unknown class>, flags: PickFlags): Widget?

Finds the descendant of @widget closest to the point (@x, @y).

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open fun present()

Presents a window to the user.

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open fun presentWithTime(timestamp: <Error class: unknown class>)

Presents a window to the user in response to an user interaction.

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open fun queueAllocate()

Flags the widget for a rerun of the vfunc@Gtk.Widget.size_allocate function.

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open fun queueDraw()

Schedules this widget to be redrawn in the paint phase of the current or the next frame.

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open fun queueResize()

Flags a widget to have its size renegotiated.

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open fun realize()

Creates the GDK resources associated with a widget.

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open fun removeController(controller: EventController)

Removes @controller from @widget, so that it doesn't process events anymore.

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open fun removeCssClass(cssClass: String)

Removes a style from @widget.

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open fun removeMnemonicLabel(label: Widget)

Removes a widget from the list of mnemonic labels for this widget.

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open fun removeTickCallback(id: <Error class: unknown class>)

Removes a tick callback previously registered with gtk_widget_add_tick_callback().

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open fun resetProperty(property: AccessibleProperty)

Resets the accessible @property to its default value.

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open fun resetRelation(relation: AccessibleRelation)

Resets the accessible @relation to its default value.

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open fun resetState(state: AccessibleState)

Resets the accessible @state to its default value.

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open fun response(responseId: <Error class: unknown class>)

Emits the ::response signal with the given response ID.

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open fun setAccessibleParent(parent: Accessible? = null, nextSibling: Accessible? = null)

Sets the parent and sibling of an accessible object.

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open fun setChildVisible(childVisible: Boolean)

Sets whether @widget should be mapped along with its parent.

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open fun setCursorFromName(name: String? = null)

Sets a named cursor to be shown when pointer devices point towards @widget.

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open fun setDefaultResponse(responseId: <Error class: unknown class>)

Sets the default widget for the dialog based on the response ID.

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open fun setDefaultSize(width: <Error class: unknown class>, height: <Error class: unknown class>)

Sets the default size of a window.

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Sets the reading direction on a particular widget.

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open fun setDisplay(display: <Error class: unknown class>)

Sets the GdkDisplay where the @window is displayed.

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open fun setFocus(focus: Widget? = null)

If @focus is not the current focus widget, and is focusable, sets it as the focus widget for the root.

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open fun setFocusChild(child: Widget? = null)

Set @child as the current focus child of @widget.

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open fun setFontMap(fontMap: <Error class: unknown class>? = null)

Sets the font map to use for Pango rendering.

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Set all margins to the same value.

fun Widget.setMargins(horizontal: Int = 0, vertical: Int = 0)

Set start and end margin to horizontal and top and bottom margin to vertical

fun Widget.setMargins(start: Int = 0, top: Int = 0, end: Int = 0, bottom: Int = 0)

Set margins.

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open fun setMarkup(str: String)

Sets the text of the message dialog.

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open fun setParent(parent: Widget)

Sets @parent as the parent widget of @widget.

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open fun setResponseSensitive(responseId: <Error class: unknown class>, setting: Boolean)

A convenient way to sensitize/desensitize dialog buttons.

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open fun setSensitive(sensitive: Boolean)

Sets the sensitivity of a widget.

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open fun setSizeRequest(width: <Error class: unknown class>, height: <Error class: unknown class>)

Sets the minimum size of a widget.

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open fun setStartupId(startupId: String)

Sets the startup notification ID.

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open fun setStateFlags(flags: StateFlags, clear: Boolean)

Turns on flag values in the current widget state.

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open fun setVisible(visible: Boolean)

Sets the visibility state of @widget.

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open fun shouldLayout(): Boolean

Returns whether @widget should contribute to the measuring and allocation of its parent.

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open fun show()

Flags a widget to be displayed.

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Triggers a tooltip query on the display where the toplevel of @widget is located.

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open fun unfullscreen()

Asks to remove the fullscreen state for @window, and return to its previous state.

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open fun unmap()

Causes a widget to be unmapped if it’s currently mapped.

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open fun unmaximize()

Asks to unmaximize @window.

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open fun unminimize()

Asks to unminimize the specified @window.

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open fun unparent()

Dissociate @widget from its parent.

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open fun unrealize()

Causes a widget to be unrealized (frees all GDK resources associated with the widget).

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open fun unsetStateFlags(flags: StateFlags)

Turns off flag values for the current widget state.

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open fun updateNextAccessibleSibling(newSibling: Accessible? = null)

Updates the next accessible sibling of @self.