Q65480: BASIC PDS 7.00 and 7.10 Cannot Use IOCTL and Far Strings
Article: Q65480 Product(s): See article Version(s): m7.00 7.10 Operating System(s): MS-DOS Keyword(s): ENDUSER | SR# S900904-34 | mspl13_basic Last Modified: 6-SEP-1990 Some customers have reported that the IOCTL$ function and IOCTL statement do not work with far strings (BC /Fs) in Microsoft BASIC Professional Development System (PDS) versions 7.00 and 7.10. Microsoft has not confirmed this to be a problem. This information applies to Microsoft BASIC Professional Development System (PDS) versions 7.00 and 7.10 for MS-DOS. The IOCTL$ function and IOCTL statement allow BASIC programs to interact with MS-DOS character device drivers that can give and receive control data strings. Not all character device drivers support IOCTL control data strings. For instance, ANSI.SYS, which replaces the standard CON device driver in DOS, is a character device driver, but it cannot receive or send control data strings. For more information on MS-DOS device drivers, device driver classes, character device drivers, and how IOCTL works, see "Advanced MS-DOS Programming" by Ray Duncan (published by Microsoft Press). Note that the IOCTL$ function and IOCTL statement cannot be used under MS OS/2. You can, however, make equivalent OS/2 API function calls to interact with OS/2 character device drivers.
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