deleteln, wdeleteln, insdelln, winsdelln, insertln, winsertln - delete and insert lines in a curses window
int wdeleteln(WINDOW *win);
int insdelln(int n);
int winsdelln(WINDOW *win, int n);
int winsertln(WINDOW *win);
The insdelln and winsdelln routines, for positive n, insert n lines into the specified window above the current line. The n bottom lines are lost. For negative n, delete n lines (starting with the one under the cursor), and move the remaining lines up. The bottom n lines are cleared. The current cursor position remains the same.
The insertln and winsertln routines insert a blank line above the current line and the bottom line is lost.
X/Open defines no error conditions. In this implementation, if the window parameter is null, an error is returned.
These routines do not require a hardware line delete or insert feature in the terminal. In fact, they will not use hardware line delete/insert unless idlok(..., TRUE) has been set on the current window.
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Created 1996-2020 by Maxim Chirkov
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