Question

Using C#.net, how I declare and use this function inside a .dll file:

DEMO_API Boolean DEMO_CALL GetVersion(Char* versionBuffer,
    UInt16* versionLengthBuffer);

Thanks in advance!

Answer 1

This is the solution I found:

    [DllImport("DEMO.dll",
        SetLastError = true,
        CallingConvention = CallingConvention.Cdecl)]
    public extern static byte GetVersion(
        [MarshalAs(UnmanagedType.LPStr)] StringBuilder versionBuffer,
        [MarshalAs(UnmanagedType.LPWStr)] StringBuilder versionLengthBuffer);