## Documentation

Table of Contents
Class Inheritance Tree
Widget Screenshots
Package groups

## Index

Package: Event_Box

- Goto spec source

# Description

    package Gtk.Event_Box is

This widget is a container that catches events for its child when its child does not have its own window (like a Gtk_Scrolled_Window or a Gtk_Label for instance). Some widgets in GtkAda do not have their own window, and thus can not directly get events from the server. The Gtk_Event_Box widget can be used to force its child to receive events anyway.

For instance, this widget is used internally in a Gtk_Combo_Box so that the application can change the cursor when the mouse is in the popup window. In that case, it contains a frame, that itself contains the scrolled window of the popup.

# Packages

### Implements_Buildable (new Glib.Types.Implements)

    package Implements_Buildable is new Glib.Types.Implements
         (Gtk.Buildable.Gtk_Buildable, Gtk_Event_Box_Record, Gtk_Event_Box);

# Classes

### Gtk_Event_Box_Record

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    type Gtk_Event_Box_Record is new Gtk_Bin_Record with null record;

#### Ancestors:

Gtk.Bin.Gtk_Bin_Record
Gtk.Container.Gtk_Container_Record
Gtk.Widget.Gtk_Widget_Record
Glib.Object.GObject_Record

#### Immediate Children:

Gtkada.MDI.Close_Button.Gtkada_MDI_Close_Button_Record
Gtkada.MDI.MDI_Child_Record

#### Primitive operations:

Get_Above_Child

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Get_Visible_Window

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Glib.Object.Deallocate

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(Inherited)
Glib.Object.Get_Type

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(Inherited)
Glib.Object.Notify

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(Inherited)
Glib.Object.Ref

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(Inherited)
Glib.Object.Ref_Sink

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(Inherited)
Glib.Object.Unref

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(Inherited)
Gtk.Bin.Get_Child

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(Inherited)
Gtk.Container.Add

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(Inherited)
Gtk.Container.Check_Resize

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(Inherited)
Gtk.Container.Child_Get_Property

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(Inherited)
Gtk.Container.Child_Set_Property

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(Inherited)
Gtk.Container.Child_Type

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(Inherited)
Gtk.Container.Forall

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(Inherited)
Gtk.Container.Foreach

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(Inherited)
Gtk.Container.Get_Border_Width

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(Inherited)
Gtk.Container.Get_Children

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(Inherited)
Gtk.Container.Get_Focus_Chain

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(Inherited)
Gtk.Container.Get_Focus_Child

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(Inherited)
Gtk.Container.Get_Focus_Hadjustment

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(Inherited)
Gtk.Container.Get_Focus_Vadjustment

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(Inherited)
Gtk.Container.Get_Resize_Mode

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(Inherited)
Gtk.Container.Propagate_Expose

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(Inherited)
Gtk.Container.Remove

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(Inherited)
Gtk.Container.Resize_Children

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(Inherited)
Gtk.Container.Set_Border_Width

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(Inherited)
Gtk.Container.Set_Focus_Chain

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(Inherited)
Gtk.Container.Set_Focus_Child

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(Inherited)
Gtk.Container.Set_Focus_Hadjustment

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(Inherited)
Gtk.Container.Set_Focus_Vadjustment

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(Inherited)
Gtk.Container.Set_Reallocate_Redraws

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(Inherited)
Gtk.Container.Set_Resize_Mode

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(Inherited)
Gtk.Container.Unset_Focus_Chain

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(Inherited)
Gtk.Widget.Activate

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(Inherited)
Gtk.Widget.Add_Accelerator

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(Inherited)
Gtk.Widget.Add_Events

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(Inherited)
Gtk.Widget.Add_Mnemonic_Label

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(Inherited)
Gtk.Widget.Can_Activate_Accel

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(Inherited)
Gtk.Widget.Child_Notify

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(Inherited)
Gtk.Widget.Class_Path

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(Inherited)
Gtk.Widget.Class_Path_Reversed

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(Inherited)
Gtk.Widget.Create_Pango_Context

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(Inherited)
Gtk.Widget.Create_Pango_Layout

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(Inherited)
Gtk.Widget.Destroy

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(Inherited)
Gtk.Widget.Draw

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(Inherited)
Gtk.Widget.Ensure_Style

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(Inherited)
Gtk.Widget.Error_Bell

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Gtk.Widget.Flag_Is_Set

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(Inherited)
Gtk.Widget.Flags

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(Inherited)
Gtk.Widget.Freeze_Child_Notify

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(Inherited)
Gtk.Widget.Get_Allocation_Height

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(Inherited)
Gtk.Widget.Get_Allocation_Width

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Gtk.Widget.Get_Allocation_X

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(Inherited)
Gtk.Widget.Get_Allocation_Y

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(Inherited)
Gtk.Widget.Get_Ancestor

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(Inherited)
Gtk.Widget.Get_Child_Requisition

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(Inherited)
Gtk.Widget.Get_Child_Visible

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(Inherited)
Gtk.Widget.Get_Colormap

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Gtk.Widget.Get_Composite_Name

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Gtk.Widget.Get_Direction

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(Inherited)
Gtk.Widget.Get_Events

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(Inherited)
Gtk.Widget.Get_Extension_Events

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(Inherited)
Gtk.Widget.Get_Has_Tooltip

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(Inherited)
Gtk.Widget.Get_Name

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(Inherited)
Gtk.Widget.Get_No_Show_All

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(Inherited)
Gtk.Widget.Get_Pango_Context

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(Inherited)
Gtk.Widget.Get_Parent

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(Inherited)
Gtk.Widget.Get_Parent_Window

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(Inherited)
Gtk.Widget.Get_Pointer

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(Inherited)
Gtk.Widget.Get_Root_Window

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(Inherited)
Gtk.Widget.Get_Size_Request

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(Inherited)
Gtk.Widget.Get_Snapshot

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(Inherited)
Gtk.Widget.Get_State

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(Inherited)
Gtk.Widget.Get_Style

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(Inherited)
Gtk.Widget.Get_Tooltip_Markup

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(Inherited)
Gtk.Widget.Get_Tooltip_Text

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(Inherited)
Gtk.Widget.Get_Tooltip_Window

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(Inherited)
Gtk.Widget.Get_Toplevel

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(Inherited)
Gtk.Widget.Get_Visual

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(Inherited)
Gtk.Widget.Get_Window

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(Inherited)
Gtk.Widget.Grab_Default

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(Inherited)
Gtk.Widget.Grab_Focus

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(Inherited)
Gtk.Widget.Has_Screen

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(Inherited)
Gtk.Widget.Hide

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(Inherited)
Gtk.Widget.Hide_All

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(Inherited)
Gtk.Widget.Input_Shape_Combine_Mask

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(Inherited)
Gtk.Widget.Intersect

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(Inherited)
Gtk.Widget.Is_Ancestor

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(Inherited)
Gtk.Widget.Is_Composited

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(Inherited)
Gtk.Widget.Is_Focus

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(Inherited)
Gtk.Widget.Keynav_Failed

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(Inherited)
Gtk.Widget.List_Mnemonic_Labels

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(Inherited)
Gtk.Widget.Map

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(Inherited)
Gtk.Widget.Mnemonic_Activate

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(Inherited)
Gtk.Widget.Modify_Base

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(Inherited)
Gtk.Widget.Modify_Bg

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(Inherited)
Gtk.Widget.Modify_Cursor

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(Inherited)
Gtk.Widget.Modify_Fg

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(Inherited)
Gtk.Widget.Modify_Font

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(Inherited)
Gtk.Widget.Modify_Text

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(Inherited)
Gtk.Widget.Path

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(Inherited)
Gtk.Widget.Path_Reversed

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(Inherited)
Gtk.Widget.Queue_Clear

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(Inherited)
Gtk.Widget.Queue_Clear_Area

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(Inherited)
Gtk.Widget.Queue_Draw

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(Inherited)
Gtk.Widget.Queue_Draw_Area

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(Inherited)
Gtk.Widget.Queue_Resize

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(Inherited)
Gtk.Widget.Queue_Resize_No_Redraw

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(Inherited)
Gtk.Widget.Realize

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(Inherited)
Gtk.Widget.Region_Intersect

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(Inherited)
Gtk.Widget.Remove_Accelerator

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(Inherited)
Gtk.Widget.Remove_Mnemonic_Label

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(Inherited)
Gtk.Widget.Render_Icon

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(Inherited)
Gtk.Widget.Reparent

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(Inherited)
Gtk.Widget.Reset_Rc_Styles

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(Inherited)
Gtk.Widget.Reset_Shapes

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(Inherited)
Gtk.Widget.Restore_Default_Style

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(Inherited)
Gtk.Widget.Send_Expose

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(Inherited)
Gtk.Widget.Set_Accel_Path

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(Inherited)
Gtk.Widget.Set_App_Paintable

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(Inherited)
Gtk.Widget.Set_Child_Visible

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(Inherited)
Gtk.Widget.Set_Colormap

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(Inherited)
Gtk.Widget.Set_Composite_Name

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(Inherited)
Gtk.Widget.Set_Direction

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(Inherited)
Gtk.Widget.Set_Double_Buffered

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(Inherited)
Gtk.Widget.Set_Events

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(Inherited)
Gtk.Widget.Set_Extension_Events

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(Inherited)
Gtk.Widget.Set_Flags

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(Inherited)
Gtk.Widget.Set_Has_Tooltip

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(Inherited)
Gtk.Widget.Set_Name

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(Inherited)
Gtk.Widget.Set_No_Show_All

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(Inherited)
Gtk.Widget.Set_Parent

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(Inherited)
Gtk.Widget.Set_Parent_Window

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(Inherited)
Gtk.Widget.Set_Redraw_On_Allocate

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(Inherited)
Gtk.Widget.Set_Scroll_Adjustments

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(Inherited)
Gtk.Widget.Set_Sensitive

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(Inherited)
Gtk.Widget.Set_Size_Request

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(Inherited)
Gtk.Widget.Set_State

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(Inherited)
Gtk.Widget.Set_Style

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(Inherited)
Gtk.Widget.Set_Tooltip_Markup

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(Inherited)
Gtk.Widget.Set_Tooltip_Text

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(Inherited)
Gtk.Widget.Set_Tooltip_Window

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(Inherited)
Gtk.Widget.Set_UPosition

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(Inherited)
Gtk.Widget.Set_USize

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(Inherited)
Gtk.Widget.Set_Window

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(Inherited)
Gtk.Widget.Shape_Combine_Mask

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(Inherited)
Gtk.Widget.Show

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(Inherited)
Gtk.Widget.Show_All

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(Inherited)
Gtk.Widget.Show_Now

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(Inherited)
Gtk.Widget.Size_Allocate

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(Inherited)
Gtk.Widget.Size_Request

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(Inherited)
Gtk.Widget.Style_Get_Property

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(Inherited)
Gtk.Widget.Thaw_Child_Notify

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(Inherited)
Gtk.Widget.Trigger_Tooltip_Query

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(Inherited)
Gtk.Widget.Unmap

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(Inherited)
Gtk.Widget.Unrealize

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(Inherited)
Gtk.Widget.Unset_Flags

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(Inherited)
Set_Above_Child

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Set_Visible_Window

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# Types

### Gtk_Event_Box

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    type Gtk_Event_Box is access all Gtk_Event_Box_Record'Class;

# Constants & Global variables

### Above_Child_Property

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(Glib.Properties.Property_Boolean)

    Above_Child_Property : constant Glib.Properties.Property_Boolean;

### Visible_Window_Property

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(Glib.Properties.Property_Boolean)

    Visible_Window_Property : constant Glib.Properties.Property_Boolean;

# Subprograms & Entries

### Gtk_New

- Goto spec in source

    procedure Gtk_New (Event_Box: out Gtk_Event_Box);

### Initialize

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    procedure Initialize (Event_Box: access Gtk_Event_Box_Record'Class);

Create a new box. The box's child can then be set using the Gtk.Container.Add function.

### Get_Type

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- Goto body in source

    function Get_Type return Glib.GType;

### Get_Above_Child

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    function Get_Above_Child (Event_Box: access Gtk_Event_Box_Record) return Boolean;

### Set_Above_Child

- Goto spec in source

    procedure Set_Above_Child (Event_Box: access Gtk_Event_Box_Record;Above_Child: Boolean);

Set whether the event box window is positioned above the windows of its child, as opposed to below it. If the window is above, all events inside the event box will go to the event box. If the window is below, events in windows of child widgets will first got to that widget, and then to its parents. The default is to keep the window below the child. Since: gtk+ 2.4 "above_child": True if the event box window is above the windows of its child

### Get_Visible_Window

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    function Get_Visible_Window (Event_Box: access Gtk_Event_Box_Record) return Boolean;

### Set_Visible_Window

- Goto spec in source

    procedure Set_Visible_Window (Event_Box: access Gtk_Event_Box_Record;Visible_Window: Boolean);

Set whether the event box uses a visible or invisible child window. The default is to use visible windows. In an invisible window event box, the window that the event box creates is a %GDK_INPUT_ONLY window, which means that it is invisible and only serves to receive events. A visible window event box creates a visible (%GDK_INPUT_OUTPUT) window that acts as the parent window for all the widgets contained in the event box. You should generally make your event box invisible if you just want to trap events. Creating a visible window may cause artifacts that are visible to the user, especially if the user is using a theme with gradients or pixmaps. The main reason to create a non input-only event box is if you want to set the background to a different color or draw on it. Note: There is one unexpected issue for an invisible event box that has its window below the child. (See Gtk.Event_Box.Set_Above_Child.) Since the input-only window is not an ancestor window of any windows that descendent widgets of the event box create, events on these windows aren't propagated up by the windowing system, but only by GTK+. The practical effect of this is if an event isn't in the event mask for the descendant window (see Gtk.Widget.Add_Event), it won't be received by the event box. This problem doesn't occur for visible event boxes, because in that case, the event box window is actually the ancestor of the descendant windows, not just at the same place on the screen. Since: gtk+ 2.4 "visible_window": boolean value

### +

- Goto spec in source

    function "+" (Widget: access Gtk_Event_Box_Record'Class) return Gtk.Buildable.Gtk_Buildable renames Implements_Buildable.To_Interface;

### -

- Goto spec in source

    function "-" (Interf: Gtk.Buildable.Gtk_Buildable) return Gtk_Event_Box renames Implements_Buildable.To_Object;