[Mono-dev] PInvoke Problem on Ubuntu

[Jonathan Chambers]

You didn't post the C code you are p-invoking, but note the char type is
2-bytes in C#. That means if you have a char in the C signature, I believe
the code presented here is wrong.

Thanks,
Jonathan

On Thu, Mar 17, 2011 at 8:13 PM, erasmus777 <el_gerbo2 at yahoo.com> wrote:

> I'm trying to test Pinvoke on Ubuntu, but it looks like other people are
> also
> having problems with it on the latest Mono build.
>
> Here's my IPy code:
>
> import clr
> clr.AddReference('pinvoketest')
> from pinvoketest import PinvokeTest
>
> Invoke.WriteToFile('t')
>
>
> My C# Wrapper:
>
> namespace PinvokeTest {
>    using System;
>    using System.Runtime.InteropServices;
>
>    public static class Invoke
>    {
>          [DllImport("libpinvoke.so", SetLastError=true)]
>          static extern void pinvoke_this(char input);
>
>            public static void WriteToFile(char arg)
>            {
>            pinvoke_this(arg);
>                        return;
>            }
>    }
> }
>
>
> Calling the native assembly works fine with ctypes in CPython, so the
> problem is either in my .NET code or Mono.   Is there something wrong with
> my approach or is this an issue with Mono?
>
> Thanks
>
> --
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