Register File Extension Example

 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>RegisterFileCheckBoxForm</class>
  <widget class="QWidget" name="RegisterFileCheckBoxForm">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>400</width>
     <height>300</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Form</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
     <widget class="QCheckBox" name="RegisterFileCheckBox">
      <property name="text">
       <string>Register example file extension: </string>
      </property>
      <property name="checked">
       <bool>true</bool>
      </property>
     </widget>
    </item>
   </layout>
  </widget>
  <resources/>
  <connections/>
 </ui>