pub fn doupdate() -> Result<(), NCurseswError>Expand description
Update the physical screen. The NCurses library keeps two data structures, one representing the current physical screen contents and a virtual screen representing the desired next state. The doupdate() ground updates the physical screen to match the virtual screen.
The virtual screen may be updated by a noutrefresh() call after write
operations such as addstr() have been performed on a window. The normal
refresh() call is simply noutrefresh() followed by doupdate(); if
you have to update multiple windows, you can speed performance and perhaps
reduce screen flicker by issuing noutrefresh() calls on all windows,
followed by a single doupdate().