Richedit cfe_hidden chars problem

[jj2007]

RichEdit 3.0, CHARFORMAT2:

Has anybody been able to make text hidden with CFE_HIDDEN/CFM_HIDDEN visible again? It seems the only method that works is to press Undo immediately after.

Grateful for advice, currently I parse the raw RTF code inside the StreamOutProc, which works but imho cannot be considered the official method...