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In Visual Basic for Applications, canceling a recursive OnTime macro may be difficult when the earliestTime argument is volatile (for example, if you are using the current time).
To cancel an OnTime method, you must call another OnTime method to set the schedule argument equal to False. However, note that this method does not work if the time argument in the OnTime method is set with the NOW function.
To prepare the first OnTime method so that you can cancel it later, create a time variable and use this variable in both cases, as in the following example:
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To cancel the first OnTime method, the second OnTime method must have the same serial number for the time argument as the first OnTime method. When you use a NOW function for the earliestTime argument, such as
Now + TimeValue("00:04:00")Microsoft Excel uses the serial value of Now + TimeValue("00:04:00"). When the second OnTime method is issued, the serial value of NOW will have changed. Because the NOW function is volatile, you cannot exactly duplicate the earliestTime argument in the second OnTime method.
For more information about the OnTime function, in the Visual Basic Editor, click Microsoft Visual Basic Help on the Help menu, type ontime method in the Office Assistant or the Answer Wizard, and then click Search to view the topic.
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