Use OpenFiles in Csharp

OpenFiles.cs

	// NOTE: Require files 'ListOpenedFileDrv_32.sys' and 'OpenFileFinder.dll'
	public class OpenFiles {

		public enum OF_TYPE {
			FILES_ONLY = 1,
			MODULES_ONLY = 2,
			ALL_TYPES = 3
		};

		public struct OF_INFO_t {
			public uint dwPID;
			[MarshalAs(UnmanagedType.LPWStr)] 
			public String lpFile;
			public int hFile;
		};
		
		public delegate bool OF_CALLBACK(OF_INFO_t OpenedFileInf0, int uUserContext);

		[DllImport("OpenFileFinder.dll")]
		public static extern void GetOpenedFiles([In, MarshalAs(UnmanagedType.LPWStr)] string lpPath, OF_TYPE Filter, OF_CALLBACK CallBackProc, int pUserContext);

	}