Sets the default font options for the screen. These options will be set on any #PangoContext’s newly created with gdk_pango_context_get_for_screen(). Changing the default set of font options does not affect contexts that have already been created.
a #cairo_font_options_t, or %NULL to unset any previously set default font options.
2.10
See Implementation
Sets the default font options for the screen. These options will be set on any #PangoContext’s newly created with gdk_pango_context_get_for_screen(). Changing the default set of font options does not affect contexts that have already been created.