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Case-sensitive is ability to distinguish between uppercase (capital) and lowercase (small) letters. Pascal is not case-sensitive (case-insensitive).

Description Case-sensitive Case-insensitive
Compare two strings, ignoring accents characters AnsiCompareStr AnsiCompareText
Compare two null-terminated strings AnsiStrComp AnsiStrIComp
Compare a limited number of characters of two null-terminated strings AnsiStrLComp AnsiStrLIComp
Compare two ansistrings, ignoring special characters CompareStr CompareText