XML Glade File for instrumentation GTK C Part1

/****   Test Instrument  Meter  using GTK-C ***/
//MD Harrington

//Glade File Part 1 Comprise 3 file  C file , Glade File and makefile
// Links at  these addresses respectively

// Part 2 https://pastebin.com/hJfvbg0f

// Part 3 https://pastebin.com/h0hTsFR5


<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.36.0 -->
<interface>
  <requires lib="gtk+" version="3.10"/>
  <object class="GtkAdjustment" id="adjustment1">
    <property name="upper">100</property>
    <property name="step_increment">1</property>
    <property name="page_increment">10</property>
  </object>
  <object class="GtkWindow" id="window1">
    <property name="visible">True</property>
    <property name="can_focus">False</property>
    <property name="resizable">False</property>
    <property name="deletable">False</property>
    <child>
      <object class="GtkBox" id="box1">
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <property name="orientation">vertical</property>
        <child>
          <object class="GtkDrawingArea" id="drawingarea1">
            <property name="width_request">400</property>
            <property name="height_request">200</property>
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <signal name="draw" handler="on_drawingarea1_draw" object="scale1" swapped="no"/>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkScale" id="scale1">
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="adjustment">adjustment1</property>
            <property name="fill_level">100</property>
            <property name="round_digits">1</property>
            <signal name="value-changed" handler="on_scale1_value_changed" object="drawingarea1" swapped="no"/>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkButton" id="quitButton">
            <property name="label" translatable="yes">QUIT</property>
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="receives_default">True</property>
            <signal name="clicked" handler="quitButtonClicked" swapped="no"/>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">2</property>
          </packing>
        </child>
      </object>
    </child>
    <child type="titlebar">
      <placeholder/>
    </child>
  </object>
</interface>