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- { Gets the number of installed CD-ROM drives in a system.
- Part of the Heartware Toolkit v2.00 (HTdisk.PAS) for Turbo Pascal.
- Author: Jose Almeida. P.O.Box 4185. 1504 Lisboa Codex. Portugal.
- I can also be reached at RIME network, site ->TIB or #5314.
- Feel completely free to use this source code in any way you want, and, if
- you do, please don't forget to mention my name, and, give me and Swag the
- proper credits. }
-
- FUNCTION CD_ROM_Units : byte;
-
- { DESCRIPTION:
- Gets the number of installed CD-ROM drives in a system.
- SAMPLE CALL:
- NB := CD_ROM_Units;
- RETURNS:
- 0 : driver not installed
- else : number of CD-ROM units }
-
- var
- HTregs : registers;
-
- BEGIN { CD_ROM_Units }
- HTregs.AX := $1500;
- HTregs.BX := $0000;
- Intr($2F,HTregs);
- CD_ROM_Units := HTregs.BL;
- END; { CD_ROM_Units }