Getting started with GtkAda & Glade

[karlran1234@yahoo.com (Karl Ran)]

Hi there,

I'm trying to created a GUI with GtkAda and Glade(the RAD tool).
It's just one window with one horizontal scale widget (Class
GtkHScale);
Glade create this file (window1_pkg-callbacks.adb) for me:

-----------------------------------------------------------------
with System; use System;
with Glib; use Glib;
with Gdk.Event; use Gdk.Event;
with Gdk.Types; use Gdk.Types;
with Gtk.Accel_Group; use Gtk.Accel_Group;
with Gtk.Object; use Gtk.Object;
with Gtk.Enums; use Gtk.Enums;
with Gtk.Style; use Gtk.Style;
with Gtk.Widget; use Gtk.Widget;
with Ada.Text_IO;

package body Window1_Pkg.Callbacks is

   use Gtk.Arguments;

   ------------------------------------
   -- On_Hscale1_Motion_Notify_Event --
   ------------------------------------

   function On_Hscale1_Motion_Notify_Event
     (Object : access Gtk_Widget_Record'Class;
      Params : Gtk.Arguments.Gtk_Args) return Boolean
   is
      Arg1 : Gdk_Event := To_Event (Params, 1);
   begin
Ada.Text_IO.Put_Line("Well, the user moved the slider but I don't know
the position :(");
      return False; 
   end On_Hscale1_Motion_Notify_Event;

end Window1_Pkg.Callbacks;

-----------------------------------------------------------------

What I like to accomplish is to print the current value(position) of
the slider
while the user is moving it.

Anyone know what have to be placed inside the Put_Line-brackets?

Karl

PS: This is the XML Glade source...

<?xml version="1.0"?> 
<GTK-Interface>

<project>
  <name>Menu2</name>
  <program_name>menu2</program_name>
  <directory></directory>   
  <source_directory>src</source_directory>
  <pixmaps_directory>pixmaps</pixmaps_directory>
  <language>Ada 95</language>
  <gnome_support>False</gnome_support>
  <gettext_support>True</gettext_support>
</project>

<widget>
  <class>GtkWindow</class>
  <name>window1</name>
  <title>window1</title>
  <type>GTK_WINDOW_TOPLEVEL</type>
  <position>GTK_WIN_POS_NONE</position>
  <modal>False</modal>
  <allow_shrink>False</allow_shrink>
  <allow_grow>True</allow_grow>
  <auto_shrink>False</auto_shrink>

  <widget>
    <class>GtkHScale</class>
    <name>hscale1</name>
    <can_focus>True</can_focus>
    <signal>
      <name>motion_notify_event</name>
      <handler>on_hscale1_motion_notify_event</handler>
      <last_modification_time>Fri, 31 Aug 2001 12:16:08
GMT</last_modification_time>
    </signal>
    <draw_value>True</draw_value>
    <value_pos>GTK_POS_TOP</value_pos>
    <digits>1</digits>
    <policy>GTK_UPDATE_CONTINUOUS</policy>
    <value>0</value>
    <lower>1</lower>
    <upper>42</upper>
    <step>1</step>
    <page>0</page>
    <page_size>0</page_size>
  </widget>
</widget>

</GTK-Interface>