These functions insert a single line on
stdscr or on the specified window.
The
insertln() function inserts a blank line before the current line on
stdscr. The current line and all lines below are moved down one line away from the cursor and the bottom line of the window is lost.
The
winsertln() function is the same as the
insertln() function, excepting that the line is inserted on the window
win.
If a scrolling region has been set with the
setscrreg() or
wsetscrreg() functions and the current cursor position is inside the scrolling region, then only the lines from the current line to the bottom of the scrolling region are moved down and the bottom line of the scrolling region lost.
The functions
insertln() and
winsertln(
win) are equivalent to
insdelln(
1) and
winsdelln(
win,
1), respectively.