Nana - a C++ framework project   The Programmer's Guide

nana::gui::API::update_window Description Copies the graphics buffer to the screen. Prototype void update_window(nana::gui::window wnd); Parameters wnd:  a handle to the window whose graphics buffer will be copied to the screen. Return Value None. Remarks This function is useful when implementing a widget. The difference to refresh_immediately is that update_window only copies the graphics buffer to the screen. See also lazy_refresh, refresh_immediately, refresh_window. Move to The Nana Programmer's Guide Application Programming Interface Overviews