h6. [[OS SWI Calls]] h6(. » [[OS_Byte]] h6((. » OS_Byte 18 h2. OS_Byte 18 h5. (SWI &06) |_<^{width:3em}. Entry | | |<^. R0|<^. 18 (&12) | |_<^{width:3em}. Exit|_<^. | |<^. R0|<^. Preserved | |<^. R1|<^. Corrupted | |<^. R2|<^. Corrupted | h4. Use The purpose of this call is to reset the currently assigned definitions to each function key. h4. Notes It unsets the system variables <code>Key$0</code> to <code>Key$15</code> and cancels any current function key expansion. Function key expansion can also be cancelled with [[OS_Byte 216]]. h4. See also * [[OS_Byte]] * [[OS_Byte 216]]