Gets the scaling factor for PostScript output. The x box is filled with the horizontal scaling factor. The y box is filled with the vertical scaling factor. The default is 1.0 by 1.0.
This scale is in addition to a scale that can be set by set-user-scale in a wx:post-script-dc% context. The size reported by get-size is the size of the selected paper type (transposed for landscaped mode) divided by this scale.