How to get alternate screen in terminal application

info.md

Use scrollback buffer

If terminal doesn't have a seperate screen buffer, but allow cursor movement, you can use new linereturn to create the new "screen", not touching the scrollback buffer above.

#############################
###### previous buffer ######
#############################
#############################
#############################
#############################
#############################
#############################
#############################
> new screen here
> new screen here
> new screen here
> new screen here
> new screen here
> new screen here
> new screen here
> new screen here

xterm

enter: CSI ? 1 0 4 7 h leave: CSI ? 1 0 4 7 l

See https://invisible-island.net/xterm/ctlseqs/ctlseqs.html

termcap

ti and te switches to and back from an alternate screen buffer.

See man termcap.

terminfo

enter: smcup leave: rmcup

If nrrmc is set, then smcup will clean the alternate screen first.

See man terminfo.