int addwch(chtype wch);
int waddwch(WINDOW *win, chtype wch);
int mvaddwch(int y, int x, chtype wch );
int mvwaddwch(WINDOW *win, int y, int x , chtype wch);
int echowchar(chtype wch);
int wechowchar(WINDOW *win, chtype wch);
If wch is a tab, newline, or backspace, the cursor is moved appropriately within the window. A newline also does a clrtoeol.3x before moving. Tabs are considered to be at every eighth column. If wch is another control character, it is drawn in the ^X notation. Calling winwch.3x after adding a control character does not return the control character, but instead returns the representation of the control character.
Video attributes can be combined with a wchar_t character by OR-ing them into the parameter. This results in these attributes also being set. (The intent here is that text, including attributes, can be copied from one place to another using inwch() and addwch().) See standout.3x predefined video attribute constants.
The echowchar() and wechowchar() routines are functionally equivalent to a call to addwch() followed by a call to refresh.3x or a call to waddwch() followed by a call to wrefresh.3x The knowledge that only a single character is being output is taken into consideration and, for non-control characters, a considerable performance gain might be seen by using these routines instead of their equivalents.
Name Default Glyph Description ACS_ULCORNER + upper left-hand corner ACS_LLCORNER + lower left-hand corner ACS_URCORNER + upper right-hand corner ACS_LRCORNER + lower right-hand corner ACS_RTEE + right tee (-|) ACS_LTEE + left tee (|-) ACS_BTEE + bottom tee (_|) ACS_TTEE + top tee (\(rn|) ACS_HLINE - horizontal line ACS_VLINE | vertical line ACS_PLUS + plus ACS_S1 - scan line 1 ACS_S9 _ scan line 9 ACS_DIAMOND + diamond ACS_CKBOARD : checker board (stipple) ACS_DEGREE ' degree symbol ACS_PLMINUS # plus/minus ACS_BULLET o bullet ACS_LARROW < arrow pointing left ACS_RARROW > arrow pointing right ACS_DARROW v arrow pointing down ACS_UARROW ^ arrow pointing up ACS_BOARD # board of squares ACS_LANTERN # lantern symbol ACS_BLOCK # solid square block
Note that addwch(), mvaddwch(), mvwaddwch(), and echowchar() may be macros.
None of these routines can use the color attribute in chtype.
Created by unroff & hp-tools. © by Hans-Peter Bischof. All Rights Reserved (1997).
Last modified 21/April/97