New to SFDC API integration but have created the Enterprise WSDL, referenced it in my C# Code. When I instantiate the client and try calling .Query Ihave a list of required parameters that I don't see in any of the existing sampels online where it just expects the SOQL string. Furthermore in my reference the .query function returns LimitInfo[] array not a QueryResult. 

The parameters are the the following in this order: 

1. Sessionheader
2. QueryOptions
3. MruHeader
4. PackageVersionHeader
5. queryString
6. out queryResult

What am I doing wrong?