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Alex Rivera
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In C# PInvoke, how do I pass a string buffer so that the C DLL fills it and returns? What will be the PInvoke declaration? The C function declaration is int GetData(char* data, int buflength); In C#, I have declared it as [DllImport(DllName)] static extern Int32 GetData([MarshalAs(UnmanagedType.LPStr)]StringBuilder receiveddata, Int32 buflen); Is it correct? I'm passing the StringBuilder variable like this int bufferLength = 32; StringBuilder data = new StringBuilder(bufferLength); int result = GetData(data, bufferLength); I would like to know is it correct or not? Thanks
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