Registering a COM Server using C#

[VivekR]

Hi All,

I was using VC++ earlier to register COM Server programmatically. What
i do is I use LoadLibrary(Desired COM DLL), then
GetProcAddress("DllRegisterServer"), and then call that function using
the function pointer that GetProcAddress returns. How do i do that in
C#, I tried using the DllImport attribute for calling LoadLibrary and
GetProcAddress, it works but at last GetProcAddress returns a fucntion
pointer ie a FARPROC or barely long, and i don't know how to use it as
a function pointer in C#.

Please help in this regard

Thanks in advance,
Vivek Ragunathan

 

[Carlos J. Quintero [.NET MVP]]

Hi,

If the COM DLL is known at compile time, try to use DllImport directly with
the DllRegisterServer function of your COM DLL and call it.

--

Best regards,

Carlos J. Quintero

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[Nicholas Paldino [.NET/C# MVP]]

Vivek,

You won't be able to do this dynamically in .NET 1.1 or before.
However, in .NET 2.0, you can create a delegate with the appropriate
signature, like so:

// The delegate for DllRegisterServer.
[return:MarshalAs(UnmanagedType.Error)]
private delegate int DllRegisterServerFunction();

Once you have that, you can pass the IntPtr representing the value that
GetProcAddress returns to the static GetDelegateForFunctionPointer method on
the Marshal class, and it will return a delegate that you can call to invoke
the method in the DLL.

Hope this helps.