Hi Magnus,
  I think you should not use the c# keyword out here, out keyword
indicates an parameter is being transferred by reference, which is not
applicable here.
This is the definition of your type,
//from Mattias
[StructLayout(LayoutKind.Sequential, Pack=1)]
public struct TtsrPlayerInfo
{
    public int PlayerID;
    public int ChannelID;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst=30)]
    public char[] NickName;
    // or
    //[MarshalAs(UnmanagedType.ByValTStr, SizeConst=30)]
    //public string NickName;
    public int PlayerChannelPrivileges;
    public int PlayerPrivileges;
    public int PlayerFlags;
}
class PInvoke
{
    [DllImport("test.dll")]
    public extern static int tsrGetPlayers([In,Out] TtsrPlayerInfo[]
tsrPlayers, ref int PlayerRecords);
}

your unmanaged  function definition
int tsrGetPlayers(TtsrPlayerInfo *tsrPlayers,int *PlayerRecords);

You need create your array in managed code before passing it into your
function.
Here is a snippet from my test code.
<code>
int recs = 12;
TtsrPlayerInfo[] info = new TtsrPlayerInfo[recs];
Console.WriteLine(PInvoke.tsrGetPlayers(info,ref recs));
Console.WriteLine(info.Length);
foreach(TtsrPlayerInfo i in info)
{
    Console.WriteLine(i.ChannelID);
    Console.WriteLine(i.NickName);
    Console.WriteLine(i.PlayerChannelPrivileges);
    Console.WriteLine(i.PlayerFlags);
    Console.WriteLine(i.PlayerID);
    Console.WriteLine(i.PlayerPrivileges);
}
Console.Read();
</code>

Thanks, if you still have problems on it ,please let me know!

Best regards,

Ying-Shen Yu [MSFT]
Microsoft Online Partner Support
Get Secure! - www.microsoft.com/security

This posting is provided "AS IS" with no warranties and confers no rights.
You should not reply this mail directly, "Online" shouldbe removed before
sending, Thanks!

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