Hi,
in unit cxRichEdit.pas there is a function, cxDrawRichEdit, that has a parameter, AScaleFactor, with default value nil, but when passing nil (or nothing) the function raises an exception because internally, inside function dxDrawRichEdit, AScaleFactor is required and used.
An AV occurs on calling the cxDrawRichEdit function whose optional ScaleFactor parameter is omitted or set to nil
Answers approved by DevExpress Support
We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.
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Thank you for sharing your research results. I think that you are right. We will try to improve this function.