Bridging the Gap Between Unmanaged C Clients and WCF Services
Unmanaged Windows C clients can seamlessly communicate with WCF services by utilizing a bridge DLL written in managed C . Here's a comprehensive guide to establish this connection:
1. Create Endpoint Interface and Class:
- Define a C# interface (IHelloService) and its corresponding implementation class (HelloService) for the WCF service.
2. Create Windows NT Service:
- Create a Windows NT service to host the WCF service.
3. Build Managed C Bridge DLL:
- Create a new managed C DLL project named "HelloServiceClientBridge".
4. Include Header Files:
- Include necessary header files in the "HelloServiceClientBridge" project (e.g., IHelloServiceClientBridge.h, vcclr.h).
5. Declare Bridge Interface:
- Define the bridge interface (IHelloServiceClientBridge) with a "SayHello" method in the "IHelloServiceClientBridge.h" header file.
6. Implement Bridge Class:
- Define the bridge class (HelloServiceClientBridge) in the "HelloServiceClientBridge.h" header file that inherits from the IHelloServiceClientBridge interface.
7. Implement SayHello Method:
- Implement the "SayHello" method in the "HelloServiceClientBridge.cpp" source file using managed C syntax.
8. Create MFC Application:
- Create an MFC application that interacts with the WCF service.
9. Add Managed C Bridge DLL to MFC Project:
- Add the "HelloServiceClientBridge" DLL to the MFC project's dependencies.
10. Add Service Reference:
- In the MFC application, add a service reference to the WCF Hello Service in a HelloServiceClient C# class library project.
11. Invoke WCF Service Call:
- In the MFC application, invoke the "SayHello" method on the managed C bridge to access the WCF Hello Service remotely.
This step-by-step approach allows unmanaged Windows C clients to use managed WCF services seamlessly.
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