I thought there were interesting stuff in the code itself, but anyway. A SendTo handler is a COM object which implements the IDropHandler interface. Mike dunn has written an article[^] about how to do this using C++/ATL. Now for C#, the basic start is to implement the IDropHandler interface using the appropriate attributes. A good start is COMInteropPart2\CSharpServer from the VS.NET sample cds. It goes like this :
// CSharpServer.cs
// compile with: /target:library
// post-build command: regasm CSharpServer.dll /tlb:CSharpServer.tlb
using System;
using System.Runtime.InteropServices;
namespace CSharpServer
{
// Since the .NET Framework interface and coclass have to behave as
// COM objects, we have to give them guids.
[Guid("DBE0E8C4-1C61-41f3-B6A4-4E2F353D3D05")]
public interface IManagedInterface
{
int PrintHi(string name);
}
[Guid("C6659361-1625-4746-931C-36014B146679")]
public class InterfaceImplementation : IManagedInterface
{
public int PrintHi(string name)
{
Console.WriteLine("Hello, {0}!", name);
return 33;
}
}
}
