You will need to insert manually to ignore formatting.
if Clipboard.HasFormat(CF_TEXT) then
RichEdit.SelText := Clipboard.AsText;
Run this code from the message handler forWM_PASTE .
, CTRL+V . WM_PASTE .
, :
- , .
TRichEdit CNNotify.EN_PROTECTED, msg=WM_PASTE, 1 , , ( ) .