When trying to free memory allocated with Marshal.AllocHGlobal, I get the message
"The object is currently in use elsewhere
Any idea why or how I can fix this? Sample code below
int bufferSize = GetGlyphOutline(hdc, (int)c, (int)METRICSFORMAT.GGO_NATIVE, out metrics, 0, IntPtr.Zero, ...

I'm working on a .NET C# user control to use it in Windows Forms Applications. This User Control uses a COM Library via RCW. I would like to use the control also through a web page with <OBJECT> tag accessing via IE, in a similar way of old ActiveX Controls
The point is that if I ...

I got the following signature from
the E appendix of  Adam Nathan's
".NET and COM...Interoperability Guide".
   ---------------------------------------------------------

I'm currently porting a working VB6 application in Visual c# but I'm having
big troubles converting this external function call to a Fortran DLL. I
think the problem is about passing arrays by reference as arguments.
The VB6 version is

My problem is two fold.
   1) I must support a deployed legacy application written in VB6 SP5.  I
need to export data from a database, compress it and the encrypt the data
using 3DES (to prevent tampering) data gets transmitted at night to the home

Additional information: QueryInterface for interface Outlook._Application
failed.
I'm running:
golApp = new Outlook.ApplicationClass();

I have a C dll that has several functions with following following signature
void func_Struct1(Struct1* ptr
void func_Struct2(Struct2* ptr
.....................................

See the code below. I only get the first messagebox.
Private Sub AxWebBrowser1_DocumentComplete(ByVal sender As Object, ByVal
e As AxSHDocVw.DWebBrowserEvents2_DocumentCompleteEvent) Handles
AxWebBrowser1.DocumentComplete

Having asked a question recently about casting a byte buffer to a struct and receiving an excellent response from Mattias Sjorgen (sorry about that o ;) which resulted in the following code
struct rec01
 ushort rt
 ..

Resending:
Hi,
I am writing a .Net wrapper for the MS object picker, but I am
running into a marshalling problem.

Hi - are there any examples of reading the NTFS change journal from
dotnet?
I have been trying to use the FileSystemWatcher, but unfortunately, it
doesn't seem to notice files being moved - just the deletion of them

We are considering the purchase of some ASP components for a asp.net
project. Our knowledge of Interop is very short. Vendor says that their
components "are COM objects, not native .NET components, but using COM
Interop assemblies you can certainly use them in a .NET environment."

(Type your message here)
How can I dynamically load a unmanaged dll in C#. Is it using DllImport? As in VC, can I use the LoadLibrary() directly?
I have an unmanaged C++ DLL which exports certain classes. I want to access these classes from the C# client. I was able to do so by ...

I'm using a bunch of Ole Interfaces. Most of them are derrived from
OleWindow (IOleInPlaceSiteEx and IOleInPlaceSite are two)
So I figured, lets' do this:
interface IOleWindow {

I hope this is the right place to ask..
I have a VC++ 6 application that reads data from a legacy database.  This database consists of 512 byte records, with the first 2 bytes determining the record type (eg 01 = record type 1, 999 = record type 99 etc).  Each record type is ...