ImageGear for C and C++ on Windows v19.10 - Updated
Structured Data Output
User Guide > How to Work with... > OCR > How to... > Assess and Analyze OCR Output > Structured Data Output

After recognition, the application can access the recognized data with a call to IG_REC_letters_get(), which returns an array of AT_REC_LETTER structures. (See the Recognized Data Kept in Memory topic.)

This structure also provides confidence information for the recognition output:

For more information, see also the Confidence Reporting section.