Suggestion: Have you considered using TTextEditor?

[raelb]

Hi, Have you considered using open source TTextEditor (https://github.com/TextEditorPro/TTextEditor) for your editor, instead of SynEdit? It has a Markdown highlighter which is quite nice. You could also use this code to syntax highlight code blocks (in md) since it has an export to html function (although it would obviously be slower to render...)