func (ps *PrintSettings) SetLength(key string, value float64, unit Unit) {
	cstr := C.CString(key)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_print_settings_set_length(ps.native(), (*C.gchar)(cstr), C.gdouble(value), C.GtkUnit(unit))
}
func (ps *PrintSettings) SetLength(key string, value float64, unit Unit) {
	cstr := C.CString(key)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_print_settings_set_length(ps.native(), (*C.gchar)(cstr), C.gdouble(value), C.GtkUnit(unit))
}
func ( ps * PrintSettings ) SetLength ( key string , value float64 , unit Unit ) { cstr := C . CString ( key ) defer C . free ( unsafe . Pointer ( cstr ) ) C . gtk_print_settings_set_length ( ps . native ( ) , ( * C . gchar ) ( cstr ) , C . gdouble ( value ) , C . GtkUnit ( unit ) ) }
// SetLength() is a wrapper around gtk_print_settings_set_length().
SetLength () is a wrapper around gtk_print_settings_set_length () .