Try using Marshall.SizeOf to get the size.
Regards,
William D. Bartholomew http://blog.bartholomew.id.au/
Kohli, Naveen wrote:
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
--- avast! Antivirus: Outbound message clean. Virus Database (VPS): 0427-2, 04/07/2004 Tested on: 7/07/2004 7:30:08 AM avast! - copyright (c) 2000-2004 ALWIL Software. http://www.avast.com
=================================== This list is hosted by DevelopMentor� http://www.develop.com Some .NET courses you may be interested in:
NEW! Guerrilla ASP.NET, 17 May 2004, in Los Angeles http://www.develop.com/courses/gaspdotnetls
View archives and manage your subscription(s) at http://discuss.develop.com
