These routines copy \fIchstr\fR into the window image structure at and after
the current cursor position. The four routines with \fIn\fR as the last
argument copy at most \fIn\fR elements, but no more than will fit on the line.
These routines copy \fIchstr\fR into the window image structure at and after
the current cursor position. The four routines with \fIn\fR as the last
argument copy at most \fIn\fR elements, but no more than will fit on the line.