Creates a new PangoFontMetrics structure. This is only for internal use by Pango backends and there is no public way to set the fields of the structure.
a newly-created PangoFontMetrics structure with a reference count of 1.
ConstructionException GTK+ fails to create the object.
Creates a new PangoFontMetrics structure. This is only for internal use by Pango backends and there is no public way to set the fields of the structure.