Function ncursesw::initscr

pub fn initscr() -> Result<WINDOW, NCurseswError>

Initialize the NCurses data structures and return the standard screen.

initscr is normally the first NCurses routine to call when initializing a program. A few special routines sometimes need to be called before it; these are slk_init, filter, ripoffline, use_env. For multiple-terminal applications, newterm() may be called before initscr.

The initscr code determines the terminal type and initializes all NCurses data structures. initscr also causes the first call to refresh to clear the screen. If errors occur, initscr writes an appropriate error message to standard error and exits; otherwise, a pointer is returned to stdscr.