◄Up► ◄Next► ◄Previous► ──────────────────────────────────────────────────────────────────────────── #define INCL_DOSDEVICES USHORT DosCLIAccess(VOID) The DosCLIAccess function requests an input/output (I/O) privilege for disabling and enabling interrupts. Assembly-language programs that use the cli and sti instructions in IOPL segments must use the DosCLIAccess function to receive permission to use these instructions. The DosCLIAccess function is a family API function. This function has no parameters. Return Value The return value is zero if the function is successful. Otherwise, it is an error value. Comments Assembly-language programs that use the in and out instructions to read from and write to I/O ports must use the DosPortAccess function to receive permission to use these instructions. The DosPortAccess function also grants permission to use the cli and sti instructions. See Also DosPortAccess ♦