INT 2F - Communicating Applications SpecificationDCA and Intel's standard programmatic interface for sending and receiving FAXes via any of a number of internal FAX boards. - GET EXTERNAL DATA BLOCK AX = CB0Eh DS:DX -> 256-byte buffer for external data block (see #03049) Return: AX = 0000h successful DS:DX buffer filled AX < 0 error code (see #03048) Format of CASsee Communicating Applications Specification external data block: Offset Size Description (Table 03049) 00h BYTE CASsee Communicating Applications Specification major version 01h BYTE CASsee Communicating Applications Specification minor version 02h 68 BYTEs ASCIZA NUL-terminated ASCII string. The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h. Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. path to directory containing CASsee Communicating Applications Specification software, ends in slash 46h 13 BYTEs ASCIZA NUL-terminated ASCII string. The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h. Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. name of current phonebook (in CASsee Communicating Applications Specification directory) 53h 13 BYTEs ASCIZA NUL-terminated ASCII string. The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h. Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. name of current logo file (in CASsee Communicating Applications Specification directory) 60h 32 BYTEs ASCIZA NUL-terminated ASCII string. The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h. Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. default sender name 80h 21 BYTEs ASCIZA NUL-terminated ASCII string. The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h. Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. CCITT identification of fax device 95h 107 BYTEs reserved