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 01-26-2018, 07:28 PM #8 cfillion Human being with feelings     Join Date: May 2015 Location: Québec, Canada Posts: 1,839 I wasn't aware of any limitation but I've just tested it: it appears to be 16,383 ($\inline 2^{14}-1$) characters for GET/PROJEXTSTATE. reaper.GetProjExtState can retrieve the full string. However, when saving the project, it gets truncated in the file to 2^13-(key length)-2 characters. It's truncated again to 2^12-(key length)-2 chars when opening it (subtract 4 instead of 2 to account for the quotes added in the project file if the key contains spaces). Funny how one bit is lost at each step. Last edited by cfillion; 01-26-2018 at 08:35 PM.