Re: Question about ComRegisterFunctionAttribute...

Steve,

Thanks for your reply, but it doesn't seem work even if I set Helper to be
ComVisible - I get no messageboxes at all. (The types in the DLL get
registered, though.)

Gyorgy Bozoki

> -----Original Message-----
> From: Discussion of development on the .NET platform using
> any managed language [mailto:[email protected]]
> On Behalf Of Steve Johnson
> Sent: Sunday, January 27, 2008 11:11
> To: [email protected]
> Subject: Re: [DOTNET-CLR] Question about
> ComRegisterFunctionAttribute...
>
> "Helper" is not ComVisible.
>
> --
> Steve Johnson
>
>
> On Jan 27, 2008 8:17 PM, Gyorgy Bozoki <[email protected]> wrote:
>
> > Hi all,
> >
> > I seem to have a problem with ComRegisterFunctionAttribute
> attribute.
> > Here is a bit of sample code:
> >
> > // Start of sample -------------------- // -------------------- //
> > Sample.cs // -------------------- using System; using
> > System.Collections.Generic; using System.Text; using
> > System.Runtime.InteropServices; using System.Windows.Forms;
> >
> > namespace SampleLib
> > {
> >    public static class Guids
> >    {
> >        public const string CLSID_TestGuid =
> >            "33DE01D3-DC04-4198-AE5D-58B1A36FC122";
> >    }
> >
> >    [Guid ( Guids.CLSID_TestGuid ), ProgId (
> "SampleLib.SampleClass" )]
> >    [ClassInterface ( ClassInterfaceType.AutoDual )]
> >    [ComVisible ( true )]
> >    public class SampleClass
> >    {
> >        public void SomeFunc ()
> >        {
> >            MessageBox.Show ( "Something" );
> >        }
> >    }
> >
> >    public static class Helper
> >    {
> >        [ComRegisterFunctionAttribute]
> >        public static void RegServer ( Type oType )
> >        {
> >            MessageBox.Show ( "Register" );
> >        }
> >
> >        [ComUnregisterFunctionAttribute]
> >        public static void UnregServer ( Type oType )
> >        {
> >            MessageBox.Show ( "Unregister" );
> >        }
> >    }
> > }
> >
> > // --------------------
> > // AssemblyInfo.cs
> > // --------------------
> > using System.Reflection;
> > using System.Runtime.CompilerServices; using
> > System.Runtime.InteropServices; using System.Security.Permissions;
> >
> > [assembly: AssemblyTitle ( "SampleLib" )]
> > [assembly: AssemblyDescription ( "" )]
> > [assembly: AssemblyConfiguration ( "" )]
> > [assembly: AssemblyCompany ( "" )]
> > [assembly: AssemblyProduct ( "SampleLib" )]
> > [assembly: AssemblyCopyright ( "Copyright C  2008" )]
> > [assembly: AssemblyTrademark ( "" )]
> > [assembly: AssemblyCulture ( "" )]
> > [assembly: RegistryPermissionAttribute (
> SecurityAction.RequestMinimum,
> >        ViewAndModify = "HKEY_LOCAL_MACHINE" )]
> >
> > [assembly: ComVisible ( false )]
> > [assembly: Guid ( "86077dae-29ae-4905-855b-798aaa7be210" )]
> > [assembly: AssemblyVersion ( "1.0.0.0" )]
> > [assembly: AssemblyFileVersion ( "1.0.0.0" )] // End of sample
> > --------------------
> >
> > The build output is a single DLL, SampleLib.dll.
> >
> > It seems that the above code builds without any errors but
> when I try
> > to register the resulting DLL using regasm.exe, the
> RegServer and/or
> > UnregServer function is never called. According to the
> documentation,
> > these functions can be public or private (or internal), but
> they must
> > be static and take a single Type parameter to be called during
> > registration for COM.
> >
> > Is there anything I need to do to make this working? I'm using .Net
> > 2.0with
> > SP1 and I have this same behavior on several computers. Any advice
> > would be greatly appreciated.
> >
> > Thanks,
> > Gyorgy Bozoki
> >
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