h6. [[OS SWI Calls]] h6(. » [[OS_FSControl]] h6((. » OS_FSControl 31 h2. OS_ FSControl 31 h5. (SWI &29) |_<^{width:4em}. Entry | | |<^. R0 |<^. 31 (&1F) | |<^. R1 |<^. Pointer to filetype string | |_<^{width:4em}. Exit | | |<^. R0|<^. Preserved| |<^. R1|<^. Preserved| |<^. R2|<^. [[File Types|Filetype]]| h4. Use The purpose of this call is to convert a string to a filetype number. h4. Notes The string is control terminated, and can be a filetype-name ("Obey"), or a filetype-number ("FEB"). An error is generated if conversion impossible. h4. See also * [[OS_FSControl]] * [[File Types]]