Protected Overridable Sub OnStarting( _
   ByVal e As PrintPageEventArgs _
) 

protected virtual void OnStarting( 
   PrintPageEventArgs e
)

Parameters

e

a PrintPageEventArgs, which this event should not modify

If you override this, be sure to call the base method.

You may want to override this method or implement an event handler to set various PrintManager properties such as Scale and Margin given the available PrintableArea based on the chosen printer.

Reference