How do I search property value of some type in XML file and write them to a text file in C++

I have 200 xml files. each one consists of pathways (something like network information). each pathway consists of entities with some attributes. I would like to ask how I can creat a text file for each xml file that contain the only name attributes for all the entities inside this xml file. I have the xml files in this format:

<?xml version="1.0" ?>    
<!DOCTYPE pathway (View Source for full doctype...)> 
- <!--  Creation date: Oct 7, 2014 11:01:31 +0900 (GMT+09:00) --> 
- <pathway name="path:gmx00010" org="gmx" number="00010" title="Glycolysis / Gluconeogenesis">
- <entry id="13" name="gmx:100527532 gmx:100775844 gmx:100778363 gmx:100786504 gmx:100792394
  gmx:100795446 gmx:100798677 gmx:100802732 gmx:100815070 gmx:100818383 gmx:100818915 gmx:547751"
  type="gene" >
  </entry>
- <entry id="37" name="gmx:100777399 gmx:100778722 gmx:100782019 gmx:100783726 gmx:100784210 
  gmx:100786773 gmx:100798020 gmx:100798892 gmx:100800699 gmx:100803104 gmx:100808513 
  gmx:100809812 gmx:100811186 gmx:100811501 gmx:100811891 gmx:100816594 gmx:100817701 
  gmx:100819197 gmx:547717" type="gene">
  </entry>
- <entry id="38" name="ko:K01905" type="ortholog">
  </entry>
- <entry id="39" name="ko:K00129" type="ortholog">
  </entry> 

I want to write a program in visual C++ to create a text file with the same title as the xml file and this text file contains the name attribute values (ex: gmx:100527532 gmx:100775844 gmx:100778363 gmx:100786504 gmx:100792394 gmx:100795446 gmx:100798677 gmx:100802732 gmx:100815070 gmx:100818383 gmx:100818915 gmx:547751) for all the entities of type="gene" and ignore any entity with other types.

Thanks.