TIMER                    Enable/Disable Timer Trap                  Statement

 TIMER {ON | OFF | STOP}

    Enables or disables event trapping via ON TIMER.

          ON    Causes Turbo Basic to check the timer.

         OFF    Causes Turbo Basic not to check the timer. This is the
                default condition.

        STOP    Also disables trapping, but Turbo Basic continues
                checking. If the specified amount of time has elapsed, a
                subsequent TIMER ON results in an immediate trap (provided
                an ON TIMER statement with a nonzero line number has been
                executed).

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      Notes:    With event trapping in effect, Turbo Basic checks for the
                specified event after each program statement. The $EVENT
                metastatement can be used to turn event trapping on and
                off at specified points within a program.