adding a COM dll as reference during runtime

[shubhlu]

hi

I have a problem that I have a COM dll and i need to access the
methods in that dll. But what is required here is that the dll needs
to be added as a reference only during runtime and not like they are
generally added (Project-->Add Reference-->COM). Is it possible to do
that?

Please help me out on this matter.

Thanks and regards

krish

 

[Michael Nemtsev]

Hello (e-mail address removed),

Use the LoadLibrary/GetProcAddress or reflection http://www.codeproject.com/csharp/dynamicinvokedll.asp?df=100&forumid=141359&exp=0&select=1008486

---
WBR, Michael Nemtsev [.NET/C# MVP].
My blog: http://spaces.live.com/laflour
Team blog: http://devkids.blogspot.com/

"The greatest danger for most of us is not that our aim is too high and we
miss it, but that it is too low and we reach it" (c) Michelangelo

 

[Mattias Sjögren]

I have a problem that I have a COM dll and i need to access the

methods in that dll. But what is required here is that the dll needs
to be added as a reference only during runtime and not like they are
generally added (Project-->Add Reference-->COM). Is it possible to do
that?

Well a reference is by definition a compile time thing. But you can
certainly instantiate COM objects dynamically at runtime and call them
assuming they support late binding with IDispatch.

Use Type.GetTypeFromProgID/CLSID to find the COM type, instantiate
with Activator.CreateInstance and call its methods using reflection
(Type.InvokeMember etc).


Mattias

 

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

krish,

I am kind of curious why you think you can't add a reference at
compile-time. What is it that prevents you from doing so?

 

[Guest]

Hello (e-mail address removed),
Use the LoadLibrary/GetProcAddress or reflection
http://www.codeproject.com/csharp/dynamicinvokedll.asp?df=100&forumid=141359&exp=0&select=1008486

For a COM DLL also ?

Arne

 

[krishnendu mukherjee]

hi nicholas

thnx a lot for answering back

actually i am a beginner so am not very sure wat exactly is the problem
anyways can u plz do me the favour of explaining how to add a COM dll
during runtime. if u can plz send me some code snippet as example

thnks and regards

krish