gtk/print.go
func (ps *PrintSettings) SetDither(dither string) {
	cstr := C.CString(dither)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_print_settings_set_dither(ps.native(), (*C.gchar)(cstr))
}
func (ps *PrintSettings) SetDither(dither string) {
	cstr := C.CString(dither)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_print_settings_set_dither(ps.native(), (*C.gchar)(cstr))
}
// SetDither() is a wrapper around gtk_print_settings_set_dither().