Get/SetTrackStateChunk() issues

[me2beats]

Hey guys we (me and eugen2777) found some issues when using
GetTrackStateChunk() and SetTrackStateChunk()

Problems can be if you work with large track chunks (more than 4 mb)

At the moment we have the following solution (by eugen2777):

function GetTrackChunk(track)
  if not track then return end
  local fast_str, track_chunk
  fast_str = reaper.SNM_CreateFastString("")
  if reaper.SNM_GetSetObjectState(track, fast_str, false, false) then
    track_chunk = reaper.SNM_GetFastString(fast_str)
  end
  reaper.SNM_DeleteFastString(fast_str)  
  return track_chunk
end

function SetTrackChunk(track, track_chunk)
  if not (track and track_chunk) then return end
  local fast_str, ret
  fast_str = reaper.SNM_CreateFastString("")
  if reaper.SNM_SetFastString(fast_str, track_chunk) then
    ret = reaper.SNM_GetSetObjectState(track, fast_str, true, false)
  end
  reaper.SNM_DeleteFastString(fast_str)
  return ret
end

We recommend to use this code instead of GetTrackStateChunk() and SetTrackStateChunk() if possible.