How to work with FFS using xiAPI.NET¶

Initialization:

    int num_free = 0;
    int num_used = 0;

Get camera's FFS info:

    num_free = myCam.GetParamInt(PRM.FREE_FFS_SIZE);
    num_used = myCam.GetParamInt(PRM.USED_FFS_SIZE);

    Console.WriteLine("FFS stats:");
    Console.WriteLine("Free bytes : {0}", num_free);
    Console.WriteLine("Used bytes : {0}", num_used);

Read available file names stored in camera FFS into array:

    List<string> ffs_files = new List<string>();
    int max_file_id = myCam.GetParamInt(PRM.FFS_FILE_ID_MAX);
    for (int file_id = 0; file_id < max_file_id + 1; file_id++)
    {
        myCam.SetParam(PRM.FFS_FILE_ID, file_id);
        string file_name = myCam.GetParamString(PRM.FFS_FILE_NAME);
        ffs_files.Add(file_name);
        Console.WriteLine("Found file {0} in camera FFS", file_name);
    }

Read all files from camera FFS:

    string ffs_files_dir = "FFS_FILES";
    Directory.CreateDirectory(ffs_files_dir);
    Directory.SetCurrentDirectory(Directory.GetCurrentDirectory() + "\\" + ffs_files_dir);
    foreach (string file_name in ffs_files)
    {
        int file_size = 0;
        myCam.SetParam(PRM.FFS_FILE_NAME, file_name);
        file_size = myCam.GetParamInt(PRM.FFS_FILE_SIZE);
        byte[] file_data = new byte[file_size];
        Console.WriteLine("Reading file {0} of size {1}", file_name, file_size);
        myCam.GetParam(PRM.READ_FILE_FFS, out file_data, out file_size);
        Console.WriteLine("Saving file {0} to {1}.", file_name, Directory.GetCurrentDirectory());
        File.WriteAllBytes(file_name, file_data);
    }

The complete source code can be downloaded from here: sample_for_working_with_FFS.cs.