gchar* vortex_frame_seq_build_up_from_params gint  channel_num,
gint  ackno,
gint  window_size

Allows to create a new SEQ frame.

SEQ frame are especial to BEEP because they allows to control how flow control is handled based on channel window size.

channel_num The channel number where the channel will
ackno The sequence number expected to be received at the time the SEQ frame was generated.
window_size The window size that the SEQ frame will acknowledge.
A newly allocated raw SEQ frame. Returned value should be deallocated using g_free.