EVENT Statements
 ----------------------------------------------------------------------------


 Action

 Enable or disable trapping of events.


 Syntax

  EVENT ON

  EVENT OFF


 Remarks

  EVENT  ON enables trapping of events until BASIC encounters the next  EVENT
 OFF statement.

  EVENT OFF disables trapping of events until BASIC encounters the next
 EVENT ON statement.

 The  EVENT statements affect compiled code generation. When  EVENT OFF is in
 effect, the compiler will not generate any event-checking code between
 statements.  EVENT OFF is equivalent to compiling a program without -V or
 -W.  EVENT OFF can be used to create small and fast code that still supports
 event trapping.

 If your program contains event-handling statements and you are compiling
 from the BC command line, use the BC -W or -V option. (The -W option checks
 for events at every label or line number; the -V option checks at every
 statement.) If you do not use these options and your program contains event
 traps, BASIC generates the error message ON event without -V or -W on
 command line.

  EVENT OFF and  EVENT ON can be used to bracket sections of code where
 events do not need to be detected and trapped, and fast performance is
 required. Events still could be detected and tracked if a subroutine using
 EVENT ON were called from a section of  EVENT OFF code.

 If an event occurs while  EVENT OFF is in effect, this event still is
 remembered and then is handled as soon as an  EVENT ON block is entered.


 See Also

  ON  event


 Example

 See the  STRIG statements programming example, which uses the  EVENT
 statements.