## Documentation

Table of Contents
Class Inheritance Tree
Widget Screenshots
Package groups

## Index

Package: Scrollbar

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# Description

    package Gtk.Scrollbar is

This widget represents a widget that can be dragged by the user to change the visible area of another widget. It is typically only used through a Gtk.Scrolled_Window, although you might need, from time to time, to use it directly if the widget you want to scroll isn't entirely suitable for a scrolled window.

For instance, if you are creating your own drawing area, unlimited in size, you do not want to create a Gtk_Drawing_Area 100_000 pixels large, since that would use too much memory. Instead, you create one with just the size of the visible area on the screen, then connect it with a scrollbar so that when the user moves the scrollbar, you change what should be displayed in the drawing area.

Binding from C File version 2.8.17

# Classes

### Gtk_Scrollbar_Record

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    type Gtk_Scrollbar_Record is new Gtk.GRange.Gtk_Range_Record with private;

#### Ancestors:

Gtk.GRange.Gtk_Range_Record
Gtk.Widget.Gtk_Widget_Record
Glib.Object.GObject_Record

#### Immediate Children:

Gtk.Scrollbar.Gtk_Hscrollbar_Record
Gtk.Scrollbar.Gtk_Vscrollbar_Record

#### Primitive operations:

Glib.Object.Deallocate

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(Inherited)
Glib.Object.Get_Type

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Glib.Object.Notify

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Glib.Object.Ref

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Glib.Object.Ref_Sink

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Glib.Object.Unref

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Gtk.GRange.Get_Adjustment

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Gtk.GRange.Get_Fill_Level

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Gtk.GRange.Get_Flippable

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Gtk.GRange.Get_Inverted

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Gtk.GRange.Get_Lower_Stepper_Sensitivity

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Gtk.GRange.Get_Min_Slider_Size

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Gtk.GRange.Get_Orientation

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Gtk.GRange.Get_Range_Rect

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Gtk.GRange.Get_Restrict_To_Fill_Level

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Gtk.GRange.Get_Round_Digits

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Gtk.GRange.Get_Show_Fill_Level

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Gtk.GRange.Get_Slider_Range

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Gtk.GRange.Get_Slider_Size_Fixed

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Gtk.GRange.Get_Update_Policy

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Gtk.GRange.Get_Upper_Stepper_Sensitivity

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Gtk.GRange.Get_Value

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Gtk.GRange.Set_Adjustment

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Gtk.GRange.Set_Fill_Level

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Gtk.GRange.Set_Flippable

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Gtk.GRange.Set_Increments

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Gtk.GRange.Set_Inverted

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Gtk.GRange.Set_Lower_Stepper_Sensitivity

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Gtk.GRange.Set_Min_Slider_Size

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Gtk.GRange.Set_Orientation

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Gtk.GRange.Set_Range

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Gtk.GRange.Set_Restrict_To_Fill_Level

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Gtk.GRange.Set_Round_Digits

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Gtk.GRange.Set_Show_Fill_Level

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Gtk.GRange.Set_Slider_Size_Fixed

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Gtk.GRange.Set_Update_Policy

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Gtk.GRange.Set_Upper_Stepper_Sensitivity

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Gtk.GRange.Set_Value

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Gtk.Widget.Activate

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Gtk.Widget.Add_Accelerator

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Gtk.Widget.Add_Events

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Gtk.Widget.Add_Mnemonic_Label

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Gtk.Widget.Can_Activate_Accel

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Gtk.Widget.Child_Notify

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Gtk.Widget.Class_Path

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Gtk.Widget.Class_Path_Reversed

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Gtk.Widget.Create_Pango_Context

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Gtk.Widget.Create_Pango_Layout

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Gtk.Widget.Destroy

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Gtk.Widget.Draw

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Gtk.Widget.Ensure_Style

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Gtk.Widget.Error_Bell

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Gtk.Widget.Flag_Is_Set

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Gtk.Widget.Flags

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Gtk.Widget.Freeze_Child_Notify

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Gtk.Widget.Get_Allocation_Height

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Gtk.Widget.Get_Allocation_Width

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Gtk.Widget.Get_Allocation_X

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Gtk.Widget.Get_Allocation_Y

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Gtk.Widget.Get_Ancestor

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Gtk.Widget.Get_Child_Requisition

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Gtk.Widget.Get_Child_Visible

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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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Gtk.Widget.Get_Events

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Gtk.Widget.Get_Extension_Events

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Gtk.Widget.Get_Has_Tooltip

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Gtk.Widget.Get_Name

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Gtk.Widget.Get_No_Show_All

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Gtk.Widget.Get_Pango_Context

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Gtk.Widget.Get_Parent

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Gtk.Widget.Get_Parent_Window

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Gtk.Widget.Get_Pointer

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Gtk.Widget.Get_Root_Window

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Gtk.Widget.Get_Size_Request

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Gtk.Widget.Get_Snapshot

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Gtk.Widget.Get_State

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Gtk.Widget.Get_Style

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Gtk.Widget.Get_Tooltip_Markup

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Gtk.Widget.Get_Tooltip_Text

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Gtk.Widget.Get_Tooltip_Window

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Gtk.Widget.Get_Toplevel

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Gtk.Widget.Get_Visual

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Gtk.Widget.Get_Window

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Gtk.Widget.Grab_Default

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Gtk.Widget.Grab_Focus

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Gtk.Widget.Has_Screen

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Gtk.Widget.Hide

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Gtk.Widget.Hide_All

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Gtk.Widget.Input_Shape_Combine_Mask

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Gtk.Widget.Intersect

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Gtk.Widget.Is_Ancestor

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Gtk.Widget.Is_Composited

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Gtk.Widget.Is_Focus

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Gtk.Widget.Keynav_Failed

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Gtk.Widget.List_Mnemonic_Labels

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Gtk.Widget.Map

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Gtk.Widget.Mnemonic_Activate

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Gtk.Widget.Modify_Base

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Gtk.Widget.Modify_Bg

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Gtk.Widget.Modify_Cursor

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Gtk.Widget.Modify_Fg

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Gtk.Widget.Modify_Font

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Gtk.Widget.Modify_Text

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Gtk.Widget.Path

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Gtk.Widget.Path_Reversed

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Gtk.Widget.Queue_Clear

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Gtk.Widget.Queue_Clear_Area

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Gtk.Widget.Queue_Draw

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Gtk.Widget.Queue_Draw_Area

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Gtk.Widget.Queue_Resize

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Gtk.Widget.Queue_Resize_No_Redraw

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Gtk.Widget.Realize

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Gtk.Widget.Region_Intersect

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Gtk.Widget.Remove_Accelerator

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Gtk.Widget.Remove_Mnemonic_Label

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Gtk.Widget.Render_Icon

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Gtk.Widget.Reparent

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Gtk.Widget.Reset_Rc_Styles

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Gtk.Widget.Reset_Shapes

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Gtk.Widget.Restore_Default_Style

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Gtk.Widget.Send_Expose

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Gtk.Widget.Set_Accel_Path

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Gtk.Widget.Set_App_Paintable

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Gtk.Widget.Set_Child_Visible

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Gtk.Widget.Set_Colormap

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Gtk.Widget.Set_Composite_Name

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Gtk.Widget.Set_Direction

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Gtk.Widget.Set_Double_Buffered

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Gtk.Widget.Set_Events

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Gtk.Widget.Set_Extension_Events

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Gtk.Widget.Set_Flags

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Gtk.Widget.Set_Has_Tooltip

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Gtk.Widget.Set_Name

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Gtk.Widget.Set_No_Show_All

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Gtk.Widget.Set_Parent

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Gtk.Widget.Set_Parent_Window

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Gtk.Widget.Set_Redraw_On_Allocate

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Gtk.Widget.Set_Scroll_Adjustments

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Gtk.Widget.Set_Sensitive

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Gtk.Widget.Set_Size_Request

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Gtk.Widget.Set_State

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Gtk.Widget.Set_Style

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Gtk.Widget.Set_Tooltip_Markup

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Gtk.Widget.Set_Tooltip_Text

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Gtk.Widget.Set_Tooltip_Window

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Gtk.Widget.Set_UPosition

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Gtk.Widget.Set_USize

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Gtk.Widget.Set_Window

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Gtk.Widget.Shape_Combine_Mask

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Gtk.Widget.Show

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Gtk.Widget.Show_All

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Gtk.Widget.Show_Now

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Gtk.Widget.Size_Allocate

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Gtk.Widget.Size_Request

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Gtk.Widget.Style_Get_Property

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Gtk.Widget.Thaw_Child_Notify

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Gtk.Widget.Trigger_Tooltip_Query

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Gtk.Widget.Unmap

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Gtk.Widget.Unrealize

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Gtk.Widget.Unset_Flags

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(Inherited)

# Types

### Gtk_Hscrollbar_Record

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    subtype Gtk_Hscrollbar_Record is Gtk_Scrollbar_Record;

### Gtk_Vscrollbar_Record

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    subtype Gtk_Vscrollbar_Record is Gtk_Scrollbar_Record;

### Gtk_Scrollbar

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    type Gtk_Scrollbar is access all Gtk_Scrollbar_Record'Class;

### Gtk_Hscrollbar

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    subtype Gtk_Hscrollbar is Gtk_Scrollbar;

### Gtk_Vscrollbar

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    subtype Gtk_Vscrollbar is Gtk_Scrollbar;

# Constants & Global variables

### Fixed_Slider_Length_Property

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(Glib.Properties.Property_Boolean)

    Fixed_Slider_Length_Property  : constant Glib.Properties.Property_Boolean;

### Has_Backward_Stepper_Property

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(Glib.Properties.Property_Boolean)

    Has_Backward_Stepper_Property : constant Glib.Properties.Property_Boolean;

### Has_Forward_Stepper_Property

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(Glib.Properties.Property_Boolean)

    Has_Forward_Stepper_Property  : constant Glib.Properties.Property_Boolean;

### Has_Secondary_Backward_Stepper_Property

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(Glib.Properties.Property_Boolean)

    Has_Secondary_Backward_Stepper_Property : constant
         Glib.Properties.Property_Boolean;

### Has_Secondary_Forward_Stepper_Property

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(Glib.Properties.Property_Boolean)

    Has_Secondary_Forward_Stepper_Property : constant
         Glib.Properties.Property_Boolean;

### Min_Slider_Length_Property

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(Glib.Properties.Property_Int)

    Min_Slider_Length_Property    : constant Glib.Properties.Property_Int;

# Subprograms & Entries

### Gtk_New_Hscrollbar

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    procedure Gtk_New_Hscrollbar (Widget: out Gtk_Scrollbar;Adjustment: Gtk.Adjustment.Gtk_Adjustment);

### Initialize_Hscrollbar

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    procedure Initialize_Hscrollbar (Widget: access Gtk_Scrollbar_Record'Class;Adjustment: Gtk.Adjustment.Gtk_Adjustment);

Creates or initializes a new horizontal scrollbar

### Gtk_New_Vscrollbar

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    procedure Gtk_New_Vscrollbar (Widget: out Gtk_Scrollbar;Adjustment: Gtk.Adjustment.Gtk_Adjustment);

### Initialize_Vscrollbar

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    procedure Initialize_Vscrollbar (Widget: access Gtk_Scrollbar_Record'Class;Adjustment: Gtk.Adjustment.Gtk_Adjustment);

Creates or initializes a new vertical scrollbar

### Get_Type

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    function Get_Type return Gtk.Gtk_Type;

### Hscrollbar_Get_Type

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    function Hscrollbar_Get_Type return Gtk.Gtk_Type;

### Vscrollbar_Get_Type

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    function Vscrollbar_Get_Type return Gtk.Gtk_Type;

Return the internal value associated with a Gtk_Scrollbar.