fgdata/gui/dialogs/sound.xml

<?xml version="1.0"?>

<!-- Sound control dialog -->

<PropertyList>
  <name>sound-dialog</name>
  <layout>vbox</layout>

  <text>
    <label>Sound Configuration</label>
  </text>

  <hrule><dummy/></hrule>

  <group>
    <layout>hbox</layout>
    <empty><dummy/></empty>

    <group>
      <layout>vbox</layout>

      <checkbox>
        <label>Mute Sound</label>
        <halign>left</halign>
        <property>/sim/sound/pause</property>
        <binding>
          <command>dialog-apply</command>
        </binding>
      </checkbox>

      <group>
        <layout>hbox</layout>
        <text><label>Volume:</label></text>
        <slider>
          <property>/sim/sound/volume</property>
          <binding>
            <command>dialog-apply</command>
          </binding>
        </slider>
      </group>

      <checkbox>
        <label>ATC Chatter</label>
        <halign>left</halign>
        <property>/sim/sound/atc-chatter</property>
        <binding>
          <command>dialog-apply</command>
        </binding>
      </checkbox>
    </group>

    <empty><dummy/></empty>
  </group>

  <group>
    <layout>hbox</layout>
    <default-padding>10</default-padding>

    <button>
      <legend>Close</legend>
      <default>true</default>
      <key>Esc</key>
      <binding>
        <command>dialog-close</command>
      </binding>
    </button>
  </group>

</PropertyList>