C# low level keyboard device

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C#

keyboard

I am writing a C# dll for barcode scanner that emulates keyboard. I am fighting with this for some time. I have problems with raw input. All examples that i found require MainApplication window handle. How to attach to device and get scanned barcode without it. Second problem is that i have to know from which keyboard it was sent from.

I tried to get it using this:

http://www.codeproject.com/Articles/17123/Using-Raw-Input-from-C-to-handle-multiple-keyboard

It gets me data and device name but require window handle.

For me problem is in this part of code:

IntPtr p = System.Diagnostics.Process.GetCurrentProcess().MainWindowHandle; System.Windows.Interop.HwndSource source =System.Windows.Interop.HwndSource.FromHwnd(p);
source.AddHook(new System.Windows.Interop.HwndSourceHook(WndProc)); 

MainWindowHandle is somethig that i do not have. And I cannot attach to windows messages. Answer to that will work for me

Do you have any ideas?