Convert C/C++ function's header to C# DLLExport

I'm looking for a program (or c# algorithm) that will convert my C++ function headers to C# DLLImport headers. For example:

idevice_error_t idevice_get_device_list (char ***   devices, int *  count);

to

[DllImport("DLL Path here", EntryPoint = "idevice_get_device_list", CallingConvention = CallingConvention.Cdecl)]
internal static extern idevice_error_t idevice_get_device_list(out IntPtr devices, out int count);

I have already found PInvoke Interop Assistant, but I can't convert header from example because it doesn't know idevice_error_t. I want a program that will ignore everything it doesn't know and just paste inline the name idevice_error_t in c# code. I will change that letter.