h6. [[OS SWI Calls]] h6(. » [[OS_FSControl]] h6((. » File Descriptor Blocks h3. File Descriptor Blocks |_<^{width:4em}. Offset |_<^. Contents for OS_FSControl 26| |>^. +0|<^. Address of workspace| |>^. +4|<^. Length of workspace| |_<^{width:4em}. Offset |_<^. Contents for OS_FSControl 28| |>^. +0|<^. Low word of count| |>^. +4|<^. High word of count| h4. See also * [[Flags For File Operations]] * [[OS_FSControl]] * [[OS_FSControl 26]] * [[OS_FSControl 28]] [link3]Flags%20For%20File%20Operations [link4]FileSwitch%20Key%20Features#load_execution [link5]File%20Descriptor%20Blocks