devAskNewPage(ask = NULL)NULL or a logical value. If TRUE, the user
will in future be prompted before a new page of output is started.ask is logical.The default argument just returns the current setting and does not change it.
The default value when a device is opened is taken from the
setting of options("device.ask.default").
The precise circumstances when the user will be asked to confirm a new
page depend on the graphics subsystem. Obviously this needs to be an
interactive session. In addition dev.control) which it usually is only on a screen device.
plot.new, grid.newpage