C# use a Void from A DLL

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How can i execute a void from a dll when the dllname is in a string?
To make it a little clear:

string thisdll = "testdll.dll";
UseDLLOrSomething(thisdll)//i don't know how to import a dll from a STRING
anyvoid();//I don't know how to call a function from a extern dll

does anyone know how to do this?

PS: sorry for bad english, that is becouse i am dutch.

Posted 15-Jul-10 8:43am

ikkentim

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Martin Jarvis · Accepted Answer · 2010-07-15T08:50:00

The answer will depend on the dll. If it's Managed (.Net) then you can simply call:

C#

System.Reflection.Assembly.LoadFile("ddlFile");

And then use reflection to call the method. (you may need to instance a class via reflection as well).

If it's Native (like c/c++) then you'll need to register the function via a DLLImport.

http://msdn.microsoft.com/en-us/library/ms235282.aspx[^]