- These routines copy chstr into the window image structure
- at and after the current cursor position. The four rou-
- tines with n as the last argument copy at most n elements,
- but no more than will fit on the line. If n=-1 then the
- whole string is copied, to the maximum number of charac-
- ters that will fit on the line.
+
+ These functions copy the (null-terminated) chstr array in-
+ to the window image structure starting at the current cur-
+ sor position. The four functions with n as the last argu-
+ ment copy at most n elements, but no more than will fit on
+ the line. If n=-1 then the whole array is copied, to the
+ maximum number of characters that will fit on the line.
+
+ The window cursor is not advanced. These functions work
+ faster than waddnstr. On the other hand:
+
+ o they do not perform checking (such as for the newline,
+ backspace, or carriage return characters),
- The window cursor is not advanced, and these routines work
- faster than waddnstr. On the other hand, they don't per-
- form any kind of checking (such as for the newline,
- backspace, or carriage return characters), they don't
- advance the current cursor position, they don't expand
- other control characters to ^-escapes, and they truncate
- the string if it crosses the right margin, rather then
- wrapping it around to the new line.
+ o they do not advance the current cursor position,
+ o they do not expand other control characters to ^-es-
+ capes, and
+
+ o they truncate the string if it crosses the right mar-
+ gin, rather than wrapping it around to the new line.
-
RETURN VALUES
- All routines return the integer ERR upon failure and OK on
- success (the SVr4 manuals specify only "an integer value
- other than ERR") upon successful completion, unless other-
- wise noted in the preceding routine descriptions.
+
+ All functions return the integer ERR upon failure and OK
+ on success.
+
+ X/Open does not define any error conditions. This imple-
+ mentation returns an error if the window pointer is null.
+
+ Functions with a "mv" prefix first perform a cursor move-
+ ment using wmove, and return an error if the position is
+ outside the window, or if the window pointer is null.
-
NOTES
- Note that all routines except waddchnstr may be macros.
+