Using c++ .lib file in WCF or c# wrapper?

Question

0.00/5 (No votes)

See more:

I have some c++ .lib files(unmanaged) and I want to create a WCF service in which all the functions written in lib files can be called and finally can be used in distributed system (web, android, iphone).

Doubts:
Do I need a DCOM object to communicate cpp lib to c# and then DCOM dll is called in WCF.
Does WCF service automatic marshal from cpp to c# (using System.Runtime.InteropServies)
- I am not sure if late binding in WCF can do the magic?

Some points which I found while rnd.
I know how to create a dll from .lib file in vc++ but here problem comes to be "Intersect of cpp class functions in c# code." . Example in cpp, I had created a function getData(char* ch). Now how to call this function passing string,say; "Hello World". It gives a error as (can't overload to datatype SByte*). Tried Sbyte.Parse() and Sbyte.TryParse() but no luck.
I am sorry if it sounds confusing but any sort of help in the form of links or sample code will be highly appreciated.
Thanks,
Abhay

Posted 14-Dec-11 0:26am

abhay bansal

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Accepted Answer · 2011-12-14T01:24:00

Solution 1

This article[^] by Luc Pattyn[^] explains how to use C++ libraries from C#. Further information can be found here[^] and here[^].

Posted 14-Dec-11 1:24am

Richard MacCutchan

abhay bansal · Accepted Answer · 2011-12-14T02:03:00

Solution 2

Thanks Richard for the links. But I can't use DLLImport function as I have cpp classes and want to pass objects in my functions.Therefore, Extern "c" cant be used.

Posted 14-Dec-11 2:03am

abhay bansal

Comments

Richard MacCutchan 14-Dec-11 8:36am

In that case I am not sure how you would do without going through some COM interface, but my knowledge of COM is very basic.

abhay bansal 14-Dec-11 23:34pm

Anyways, Thanks Richard.