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C# "Must declare a body" error

PeterFrb asked
1 Endorsement
Last Modified: 2014-05-01
I am new to C#, and I don't understand how to resolve this issue:

        public extern int CreateBindCtx(
            uint reserved,
            out IBindCtx ppbc);

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The code block comes up with the following error:

'RunningObjectTable.Program.CreateBindCtx(uint, out System.Runtime.InteropServices.ComTypes.IBindCtx)' must declare a body because it is not marked abstract, extern, or partial

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I'm not at all clear how to give a declared function a "body".  Also, excuse me, but it is so labeled "extern"!  I also have another declared function as "public extern void", which does not return this error, indicating that my syntax on the function above is correct.  Some basic info on this is appreciated.  Thanks!  ~Peter Ferber
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