osFree wiki - en:docs:dos:api:int21:65 https://osfree.org/doku/ 2026-04-15T03:38:07+00:00 osFree wiki https://osfree.org/doku/ https://osfree.org/doku/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2024-05-08T01:28:45+00:00 Anonymous (anonymous@undisclosed.example.com) 00 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:00&rev=1715131725&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=00H Version 7.1 and higher Brief SET GENERAL INTERNATIONALIZATION INFO Family API Input CF clear if successful AX = system code page CX = number of bytes copied from supplied buffer CF set on error AX = error code text/html 2024-05-08T01:29:25+00:00 Anonymous (anonymous@undisclosed.example.com) 01 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:01&rev=1715131765&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=01H Version 3.3 and higher Brief get general internationalization info Family API Input AH = 6501h BX = code page (FFFFh=global code page) (see #01757) DX = country ID (FFFFh=current country) ES:DI -> country information buffer (see #01750) CX = size of buffer (>= 5) text/html 2024-05-08T01:29:59+00:00 Anonymous (anonymous@undisclosed.example.com) 02 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:02&rev=1715131799&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=02H Version 3.3 and higher Brief get pointer to uppercase table Family API Input AH = 6502h BX = code page (FFFFh=global code page) (see #01757) DX = country ID (FFFFh=current country) ES:DI -> country information buffer (see #01750) CX = size of buffer (>= 5) text/html 2024-05-08T01:30:52+00:00 Anonymous (anonymous@undisclosed.example.com) 03 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:03&rev=1715131852&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=03H Version 6.2 and higher Brief get pointer to lowercase table Family API Input AH = 6503h BX = code page (FFFFh=global code page) (see #01757) DX = country ID (FFFFh=current country) ES:DI -> country information buffer (see #01750) CX = size of buffer (>= 5) text/html 2024-05-08T01:31:30+00:00 Anonymous (anonymous@undisclosed.example.com) 04 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:04&rev=1715131890&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=04H Version 3.3 and higher Brief get pointer to filename uppercase table Family API Input AH = 6504h BX = code page (FFFFh=global code page) (see #01757) DX = country ID (FFFFh=current country) ES:DI -> country information buffer (see #01750) CX = size of buffer (>= 5) text/html 2024-05-08T01:32:13+00:00 Anonymous (anonymous@undisclosed.example.com) 05 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:05&rev=1715131933&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=05H Version 3.3 and higher Brief get pointer to filename terminator table Family API Input AH = 6505h BX = code page (FFFFh=global code page) (see #01757) DX = country ID (FFFFh=current country) ES:DI -> country information buffer (see #01750) CX = size of buffer (>= 5) text/html 2024-05-08T01:33:25+00:00 Anonymous (anonymous@undisclosed.example.com) 06 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:06&rev=1715132005&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=06H Version 3.3 and higher Brief get pointer to collating sequence table Family API Input AH = 6506h BX = code page (FFFFh=global code page) (see #01757) DX = country ID (FFFFh=current country) ES:DI -> country information buffer (see #01750) CX = size of buffer (>= 5) text/html 2024-05-08T01:33:59+00:00 Anonymous (anonymous@undisclosed.example.com) 07 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:07&rev=1715132039&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=07H Version 4.0 and higher Brief get pointer to Double-Byte Character Set table Family API Input AH = 6507h BX = code page (FFFFh=global code page) (see #01757) DX = country ID (FFFFh=current country) ES:DI -> country information buffer (see #01750) CX = size of buffer (>= 5) text/html 2024-05-08T01:34:57+00:00 Anonymous (anonymous@undisclosed.example.com) 20 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:20&rev=1715132097&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=20H Version 4.0 and higher Brief capitalize character Family API Input AX = 6520h DL = character to capitalize Return DL = capitalized character CF set on error AX = error code (see #01680 at AH=59h/BX=0000h) CF clear if successful text/html 2024-05-08T01:35:32+00:00 Anonymous (anonymous@undisclosed.example.com) 21 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:21&rev=1715132132&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=21H Version 4.0 and higher Brief capitalize string Family API Input AX = 6521h DS:DX -> string to capitalize CX = length of string Return text/html 2024-05-08T01:36:11+00:00 Anonymous (anonymous@undisclosed.example.com) 22 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:22&rev=1715132171&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=22H Version 4.0 and higher Brief capitalize ASCIZ string Family API Input AX = 6522h DS:DX -> ASCIZ string to capitalize Return CF set on error AX = error code (see #01680 at AH=59h/BX=0000h) CF clear if successful text/html 2024-05-08T01:37:57+00:00 Anonymous (anonymous@undisclosed.example.com) 23 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:23&rev=1715132277&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=23H Version 4.0 and higher Brief DETERMINE IF CHARACTER REPRESENTS YES/NO RESPONSE Family API Input AX = 6523h DL = character DH = second character of double-byte character (if applicable) text/html 2024-05-08T01:38:42+00:00 Anonymous (anonymous@undisclosed.example.com) a0 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:a0&rev=1715132322&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=A0H Version 4.0 and higher Brief capitalize filename character Family API Input AX = 65A0h DL = character to capitalize Return DL = capitalized character CF set on error AX = error code (see #01680 at AH=59h/BX=0000h) CF clear if successful text/html 2024-05-08T01:39:27+00:00 Anonymous (anonymous@undisclosed.example.com) a1 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:a1&rev=1715132367&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=A1H Version 4.0 and higher Brief capitalize counted filename string Family API Input AX = 65A1h DS:DX -> filename string to capitalize CX = length of string text/html 2024-05-08T01:39:51+00:00 Anonymous (anonymous@undisclosed.example.com) a2 https://osfree.org/doku/doku.php?id=en:docs:dos:api:int21:65:a2&rev=1715132391&do=diff Note: This API call is for DOS and Win16 personality only. Use Family API for portability. Int 21H, AH=65H, AL=A2H Version 4.0 and higher Brief capitalize ASCIZ filename Family API Input AX = 65A2h DS:DX -> ASCIZ filename to capitalize Return CF set on error AX = error code (see #01680 at AH=59h/BX=0000h) CF clear if successful