| $LongStrings | | Treat string types as AnsiString or ShortString |
| AnsiCompareStr | | Compare two strings for equality |
| AnsiLowerCase | | Change upper case characters in a string to lower case |
| AnsiPos | | Find the position of one string in another |
| AnsiString | | A data type that holds a string of AnsiChars |
| AnsiUpperCase | | Change lower case characters in a string to upper case |
| Concat | | Concatenates one or more strings into one string |
| Copy | | Create a copy of part of a string or an array |
| Delete | | Delete a section of characters from a string |
| Length | | Return the number of elements in an array or string |
| Move | | Copy bytes of data from a source to a destination |
| PShortString | | A pointer to an ShortString value |
| SetLength | | Changes the size of a string, or the size(s) of an array |
| String | | A data type that holds a string of characters |
| WideString | | A data type that holds a string of WideChars |