h6. [[Programmer's Reference Manuals]] h6(. » [[Events]] h6((. » [[Event Numbers]] h6(((. » Event 4 h2. VSync event |_<^{width:4em}. Entry | | |<^. R0|<^. 4 | h4. Use This event is raised when the electron beam reaches the bottom of the display area and is about to start displaying border colour. This corresponds to the time that [[OS_Byte 19]] returns. The frequency of this event depends on the scan rate of the monitor. If you wish to synchronise music, you should probably use [[TickerV]] vector rather than this event. h4. See also * [[Event Numbers]] * [[Events Introduction]] * [[OS_Byte 19]] * [[TickerV]]