[ADVANCED-DOTNET] Redeclaring COM interface return type - ??

[Thomas Tomiczek]

Hello,

Small problem I just run into. Having done my own share of COM interop,
I still dont know how to "change" the signature from PreserveSig to
something more convenient :-)

Like:
public interface IFileSinkFilter
{
        [PreserveSig]
        int SetFileName(
                [In, MarshalAs(UnmanagedType.LPWStr)]
string          pszFileName,
                [In, MarshalAs(UnmanagedType.LPStruct)]
AMMediaType     pmt );
        
}

How can I change this that I just have "void SetFileName (a, b)"? Just
skipping the PreserveSig, surely :-)

But what when there is an out parameter?

Thanks in advance.

Thomas Tomiczek
THONA Consulting Ltd.
(Microsoft MVP C#/.NET)

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