how to use dll created by C,C++ in C# project?

[Sachin Gedam]

Hello Friends, Our clients requirement is that we have to use their DLL which is created by C,C++ code. What I am doing in my code is that : 1. using using System.Runtime.InteropServices; 2. [DllImport(@"g:\SampleDLL.dll",EntryPoint="test", SetLastError=true, CharSet=CharSet.Unicode, CallingConvention=CallingConvention.Winapi)] 3. static extern int test(int lpLibName); 4. and in code calling test function with parmeter as 10. But I am getting error that entry point "test" not found in SampleDll.dll, but this methods defination written in that dll itself. Please help me out of this. Or tell me is there any other way to use that dll? Sachin Gedam (Software Engg.) Pune India

[spif2001]

It's COM you're after. Here's a little appetizer http://www.codeproject.com/dotnet/cominterop.asp

[Sachin Gedam]

sorry but its not a COM object, its simple a compiled dll created by old school level C,C++ language. And we have to use that dll in our .net project. Sachin Gedam (Software Engg.) Pune India

[DavidNohejl]

Unmanaged calls are not only COM. PInvoke is keyword to search for. PInvoke C# Tutorial[^] David Never forget: "Stay kul and happy" (I.A.)
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