Thanks for the link. I was trying to avoid the manual marshalling of the data. Now I 
have run into a different problem. Here is what the prototype looks like.

[StructLayout(LayoutKind.Sequential)]
        internal class MY_DATA
        {
                internal UInt16 usData1;
                internal UInt32 uiSize;
                internal IntPtr usValues;
        }

Now I try to get the values out..

IntPtr pData = ...< this I got from C DLL > ...
UInt16 usData1 = Marshal.ReadInt16(pData); ---> This returns the correct value

Now I want to read uiSize member,

UInt32 uiSize = Marshal.ReadInt32(pData, 2); --> This gives wrong value.

UInt32 uiSize = Marshal.ReadInt32(pData, 4); --> This is OK..

Isn't the offset for UInt16 2bytes.. or I am totally mistaken.


-----Original Message-----
From: Unmoderated discussion of advanced .NET topics. [mailto:[EMAIL PROTECTED] On 
Behalf Of Mattias Sj�gren
Sent: Tuesday, July 06, 2004 10:47 AM
To: [EMAIL PROTECTED]
Subject: Re: [ADVANCED-DOTNET] Marshal Embedded arrays in structure

>How do you implement the marshalling code to get all the elements in the
>returned array inside this structure?

See if this helps

http://www.dotnetinterop.com/faq/?q=VariableLengthStruct


Mattias

-- 
Mattias Sj�gren
[EMAIL PROTECTED]

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