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diff --git a/spec/fltk-widgets-valuators-sliders.ads b/spec/fltk-widgets-valuators-sliders.ads
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+++ b/spec/fltk-widgets-valuators-sliders.ads
@@ -0,0 +1,160 @@
+
+
+--  Programmed by Jedidiah Barber
+--  Released into the public domain
+
+
+limited with
+
+    FLTK.Widgets.Groups;
+
+
+package FLTK.Widgets.Valuators.Sliders is
+
+
+    type Slider is new Valuator with private;
+
+    type Slider_Reference (Data : not null access Slider'Class) is limited null record
+        with Implicit_Dereference => Data;
+
+    type Slider_Kind is
+       (Vertical_Slider,      Horizontal_Slider,
+        Vertical_Fill_Slider, Horizontal_Fill_Slider,
+        Vertical_Nice_Slider, Horizontal_Nice_Slider);
+
+
+
+
+    package Forge is
+
+        function Create
+               (X, Y, W, H : in Integer;
+                Text       : in String := "")
+            return Slider;
+
+        function Create
+               (Parent     : in out FLTK.Widgets.Groups.Group'Class;
+                X, Y, W, H : in     Integer;
+                Text       : in     String := "")
+            return Slider;
+
+        function Create
+               (Kind       : in Slider_Kind;
+                X, Y, W, H : in Integer;
+                Text       : in String := "")
+            return Slider;
+
+        function Create
+               (Parent     : in out FLTK.Widgets.Groups.Group'Class;
+                Kind       : in     Slider_Kind;
+                X, Y, W, H : in     Integer;
+                Text       : in     String := "")
+            return Slider;
+
+    end Forge;
+
+
+
+
+    procedure Set_Bounds
+           (This     : in out Slider;
+            Min, Max : in     Long_Float);
+
+    function Get_Box
+           (This : in Slider)
+        return Box_Kind;
+
+    procedure Set_Box
+           (This : in out Slider;
+            To   : in     Box_Kind);
+
+    function Get_Slide_Size
+           (This : in Slider)
+        return Float;
+
+    procedure Set_Slide_Size
+           (This : in out Slider;
+            To   : in     Long_Float);
+
+    procedure Set_Scrollvalue
+           (This            : in out Slider;
+            Pos_First_Line  : in     Natural;
+            Lines_In_Window : in     Natural;
+            First_Line_Num  : in     Natural;
+            Total_Lines     : in     Natural);
+
+
+
+
+    procedure Draw
+           (This : in out Slider);
+
+    procedure Draw
+           (This       : in out Slider;
+            X, Y, W, H : in     Integer);
+
+    function Handle
+           (This  : in out Slider;
+            Event : in     Event_Kind)
+        return Event_Outcome;
+
+    function Handle
+           (This       : in out Slider;
+            Event      : in     Event_Kind;
+            X, Y, W, H : in     Integer)
+        return Event_Outcome;
+
+
+
+
+    function Get_Kind
+           (This : in Slider)
+        return Slider_Kind;
+
+    package Extra is
+
+        procedure Set_Kind
+               (This : in out Slider;
+                To   : in     Slider_Kind);
+
+    end Extra;
+
+
+private
+
+
+    type Slider is new Valuator with null record;
+
+    overriding procedure Initialize
+           (This : in out Slider);
+
+    overriding procedure Finalize
+           (This : in out Slider);
+
+    procedure Extra_Init
+           (This       : in out Slider;
+            X, Y, W, H : in     Integer;
+            Text       : in     String)
+    with Inline;
+
+    procedure Extra_Final
+           (This : in out Slider)
+    with Inline;
+
+
+    pragma Inline (Set_Bounds);
+    pragma Inline (Get_Box);
+    pragma Inline (Set_Box);
+    pragma Inline (Get_Slide_Size);
+    pragma Inline (Set_Slide_Size);
+    pragma Inline (Set_Scrollvalue);
+
+    pragma Inline (Draw);
+    pragma Inline (Handle);
+
+    pragma Inline (Get_Kind);
+
+
+end FLTK.Widgets.Valuators.Sliders;
+
+