Dynamic Invoke from Unmanaged DLL (CompactFramework, WjnCE.NET 5, vs 2003, C#)

  • Thread starter Thread starter Marco [Stinger]
  • Start date Start date
M

Marco [Stinger]

Hi
Sorry if this has been asked before but I'm VERY new to the
compact framework.

Here's my problem
I'm writing a program for a WinCE.NET 5 device using Visual Studio 2003
and C#.
This program needs to call a few DLL writen in EmbeddedC++.
I already know that the dll's work since I've tested them with

[DllImport("Name of the Dll")]
extern static int NameOfTheDllFunction( ...parameters ... );

Unfotunately NOT all the DLLs will be installed (they work like plugins).
So I need to choose dynamically the name(s) of the dll I will be calling.
THe idea is that my app must not know the name of the DLLs
All DLLs have the same functions with the same parameters and return type.

I searched the net for some answers but I'm having a hard time.
Look at

www.codeprojects.com/useritems/dynamicinvokedll.asp

That seems like a solution (even thou I think I need to do something
SIMPLER)
but the namespace System.Reflection.Emit seems to be missing from the
compact framework

Any help will be highly appreciated (free coffee if you come to Milan ;) )

Ciao
Marco
 
Here's my problem
I'm writing a program for a WinCE.NET 5 device using Visual Studio 2003
and C#.
This program needs to call a few DLL writen in EmbeddedC++.
I already know that the dll's work since I've tested them with

[DllImport("Name of the Dll")]
extern static int NameOfTheDllFunction( ...parameters ... );

Unfotunately NOT all the DLLs will be installed (they work like plugins).
So I need to choose dynamically the name(s) of the dll I will be calling.
THe idea is that my app must not know the name of the DLLs
All DLLs have the same functions with the same parameters and return type.
Click to expand...

I suggest you write your own unmanaged library that exposes a method for
dynamic calls. This method should use LoadLibrary/GetProcAddress. look for
examples at:

http://www.bearcanyon.com/dotnet/#getprocaddress

http://www.codeproject.com/csharp/dyninvok.asp?df=100&forumid=2892&exp=0&select=838412

Wiktor Zychla
 
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