Sets the size field of a font description, in device units.
This is mutually exclusive with pango.font_description.FontDescription.setSize which sets the font size in points.
the new size, in Pango units. There are PANGO_SCALE Pango units in one device unit. For an output backend where a device unit is a pixel, a size value of 10 * PANGO_SCALE gives a 10 pixel font.
Sets the size field of a font description, in device units.
This is mutually exclusive with pango.font_description.FontDescription.setSize which sets the font size in points.