Calling vb.net web service from visual c++
- From: "David" <David@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 20 Jul 2005 12:05:03 -0700
Hi. I am new to this so this may be a dumb question:
I am trying to call a web service that is Written in VB.NET from my C++ dll.
here is what I did:
1. Create a sample web service (with helloworld function)
2. Create an empty ATL application (it compiled)
3. Added a reference to the wsdl document of the web service to the project.
4. tried to compile it and got an error:
syntax error : expecting a type specification near "HelloWorldResult"
error points to this line:
[id(4), helpstring("method HelloWorld")] HRESULT HelloWorld([out, retval]
HelloWorldResult *);
Here is the code that was generated by Soap Tool Kit when I added a reference:
// TestSoapTool.idl : IDL source for TestSoapTool.dll
//
// This file will be processed by the MIDL tool to
// produce the type library (TestSoapTool.tlb) and marshalling code.
import "oaidl.idl";
import "ocidl.idl";
[
object,
uuid(433144B5-225D-42D8-8E2C-875467ABE7FA),
dual,
helpstring("IService1SoapProxy Interface"),
pointer_default(unique)
]
interface IService1SoapProxy : IDispatch
{
[propget, id(1), helpstring("property URL")] HRESULT URL([out, retval]
BSTR *pVal);
[propput, id(1), helpstring("property URL")] HRESULT URL([in] BSTR newVal);
[propget, id(2), helpstring("property ProxyServerAddress")] HRESULT
ProxyServerAddress([out, retval] BSTR *pVal);
[propput, id(2), helpstring("property ProxyServerAddress")] HRESULT
ProxyServerAddress([in] BSTR newVal);
[propget, id(3), helpstring("property ProxyServerPort")] HRESULT
ProxyServerPort([out, retval] BSTR *pVal);
[propput, id(3), helpstring("property ProxyServerPort")] HRESULT
ProxyServerPort([in] BSTR newVal);
[id(4), helpstring("method HelloWorld")] HRESULT HelloWorld([out, retval]
HelloWorldResult *);
};
[
uuid(A07EF164-8E81-41FF-9D91-BD74F3C1F67E),
version(1.0),
helpstring("TestSoapTool 1.0 Type Library")
]
library TESTSOAPTOOLLib
{
importlib("stdole32.tlb");
importlib("stdole2.tlb");
[
uuid(C7AC7808-58F3-4109-B2D9-ACC22521C055),
helpstring("Service1SoapProxy Class")
]
coclass Service1SoapProxy
{
[default] interface IService1SoapProxy;
};
};
Before I go any further I wanted to know if it is even doable: calling
vb-based functions from c++ since all types are different. Is this a common
issue? Did I do anything wrong in my steps or is there anything I did not do?
Thanks for the help.
.
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