See Also Macros Event Procedures Applies To
The Timer event occurs for a form at regular intervals as specified by the form's TimerInterval property.
Remarks
To run a macro or event procedure when this event occurs, set the OnTimer property to the name of the macro or to [Event Procedure].
By running a macro or event procedure when a Timer event occurs, you can control what Microsoft Access does at every timer interval. For example, you might want to requery underlying records or repaint the screen at specified intervals.
The TimerInterval property setting of the form specifies the interval, in milliseconds, between Timer events. The interval can be between 0 and 65,535 milliseconds. Setting the TimerInterval property to 0 prevents the Timer event from occurring.