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# Automating Legacy MFC Apps With No UIA -- HTS Playbook

MFC owner-drawn controls have almost no UIA patterns -> Win32 PostMessage fallback required. CMaskEditEx: WM_CHAR only (never EM_SETTEXT/EM_SETSEL -- double input). GetSupportedPatterns() on MFC = COM corruption -- use TryGetCurrentPattern() per pattern. OCR triple cross-validation for price/candle data. FuzzyDigitMatch: Levenshtein ≤2 for bitmap OCR instability.

user/developer
hts mfc ocr win32 uia legacy owner-drawn project

## Steps

1. [v6.2+ DISCOVERY FAST-PATH] MFC/Afx windows...