'\" t .\"*************************************************************************** .\" Copyright (c) 1998-2003,2005 Free Software Foundation, Inc. * .\" * .\" Permission is hereby granted, free of charge, to any person obtaining a * .\" copy of this software and associated documentation files (the * .\" "Software"), to deal in the Software without restriction, including * .\" without limitation the rights to use, copy, modify, merge, publish, * .\" distribute, distribute with modifications, sublicense, and/or sell * .\" copies of the Software, and to permit persons to whom the Software is * .\" furnished to do so, subject to the following conditions: * .\" * .\" The above copyright notice and this permission notice shall be included * .\" in all copies or substantial portions of the Software. * .\" * .\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * .\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * .\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * .\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * .\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * .\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * .\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. * .\" * .\" Except as contained in this notice, the name(s) of the above copyright * .\" holders shall not be used in advertising or otherwise to promote the * .\" sale, use or other dealings in this Software without prior written * .\" authorization. * .\"*************************************************************************** .\" .\" $Id$ .TH curs_attr 3X "" .na .hy 0 .SH NAME \fBattroff\fR, \fBwattroff\fR, \fBattron\fR, \fBwattron\fR, \fBattrset\fR, \fBwattrset\fR, \fBcolor_set\fR, \fBwcolor_set\fR, \fBstandend\fR, \fBwstandend\fR, \fBstandout\fR, \fBwstandout\fR, \fBattr_get\fR, \fBwattr_get\fR, \fBattr_off\fR, \fBwattr_off\fR, \fBattr_on\fR, \fBwattr_on\fR, \fBattr_set\fR, \fBwattr_set\fR, \fBchgat\fR, \fBwchgat\fR, \fBmvchgat\fR, \fBmvwchgat\fR, \fBPAIR_NUMBER\fR - \fBcurses\fR character and window attribute control routines .ad .hy .SH SYNOPSIS \fB#include \fR .br \fBint attroff(int attrs);\fR .br \fBint wattroff(WINDOW *win, int attrs);\fR .br \fBint attron(int attrs);\fR .br \fBint wattron(WINDOW *win, int attrs);\fR .br \fBint attrset(int attrs);\fR .br \fBint wattrset(WINDOW *win, int attrs);\fR .br \fBint color_set(short color_pair_number, void* opts);\fR .br \fBint wcolor_set(WINDOW *win, short color_pair_number,\fR \fBvoid* opts);\fR .br \fBint standend(void);\fR .br \fBint wstandend(WINDOW *win);\fR .br \fBint standout(void);\fR .br \fBint wstandout(WINDOW *win);\fR .br \fBint attr_get(attr_t *attrs, short *pair, void *opts);\fR .br \fBint wattr_get(WINDOW *win, attr_t *attrs, short *pair,\fR \fBvoid *opts);\fR .br \fBint attr_off(attr_t attrs, void *opts);\fR .br \fBint wattr_off(WINDOW *win, attr_t attrs, void *opts);\fR .br \fBint attr_on(attr_t attrs, void *opts);\fR .br \fBint wattr_on(WINDOW *win, attr_t attrs, void *opts);\fR .br \fBint attr_set(attr_t attrs, short pair, void *opts);\fR .br \fBint wattr_set(WINDOW *win, attr_t attrs, short pair, void *opts);\fR .br \fBint chgat(int n, attr_t attr, short color,\fR \fBconst void *opts)\fR .br \fBint wchgat(WINDOW *win, int n, attr_t attr,\fR \fBshort color, const void *opts)\fR .br \fBint mvchgat(int y, int x, int n, attr_t attr,\fR \fBshort color, const void *opts)\fR .br \fBint mvwchgat(WINDOW *win, int y, int x, int n,\fR \fBattr_t attr, short color, const void *opts)\fR .br .SH DESCRIPTION These routines manipulate the current attributes of the named window. The current attributes of a window apply to all characters that are written into the window with \fBwaddch\fR, \fBwaddstr\fR and \fBwprintw\fR. Attributes are a property of the character, and move with the character through any scrolling and insert/delete line/character operations. To the extent possible, they are displayed as appropriate modifications to the graphic rendition of characters put on the screen. .PP The routine \fBattrset\fR sets the current attributes of the given window to \fIattrs\fR. The routine \fBattroff\fR turns off the named attributes without turning any other attributes on or off. The routine \fBattron\fR turns on the named attributes without affecting any others. The routine \fBstandout\fR is the same as \fBattron(A_STANDOUT)\fR. The routine \fBstandend\fR is the same as \fBattrset(A_NORMAL)\fR or \fBattrset(0)\fR, that is, it turns off all attributes. .PP The \fBattrset\fR and related routines do not affect the attributes used when erasing portions of the window. See \fBcurs_bkgd\fR(3X) for functions which modify the attributes used for erasing and clearing. .PP The routine \fBcolor_set\fR sets the current color of the given window to the foreground/background combination described by the color_pair_number. The parameter opts is reserved for future use, applications must supply a null pointer. .PP The routine \fBwattr_get\fR returns the current attribute and color pair for the given window; \fBattr_get\fR returns the current attribute and color pair for \fBstdscr\fR. The remaining \fBattr_\fR* functions operate exactly like the corresponding \fBattr\fR* functions, except that they take arguments of type \fBattr_t\fR rather than \fBint\fR. .PP The routine \fBchgat\fR changes the attributes of a given number of characters starting at the current cursor location of \fBstdscr\fR. It does not update the cursor and does not perform wrapping. A character count of -1 or greater than the remaining window width means to change attributes all the way to the end of the current line. The \fBwchgat\fR function generalizes this to any window; the \fBmvwchgat\fR function does a cursor move before acting. In these functions, the color argument is a color-pair index (as in the first argument of \fIinit_pair\fR, see \fBcurs_color\fR(3X)). The \fBopts\fR argument is not presently used, but is reserved for the future (leave it \fBNULL\fR). Note that changing the attributes does not imply that a subsequent \fBrefresh\fR will update the screen to match, since the character values are not modified. Use \fBtouchwin\fR to force the screen to match the updated attributes. .SS Attributes The following video attributes, defined in \fB\fR, can be passed to the routines \fBattron\fR, \fBattroff\fR, and \fBattrset\fR, or OR'd with the characters passed to \fBaddch\fR. .PP .TS center ; l l . \fBA_NORMAL\fR Normal display (no highlight) \fBA_STANDOUT\fR Best highlighting mode of the terminal. \fBA_UNDERLINE\fR Underlining \fBA_REVERSE\fR Reverse video \fBA_BLINK\fR Blinking \fBA_DIM\fR Half bright \fBA_BOLD\fR Extra bright or bold \fBA_PROTECT\fR Protected mode \fBA_INVIS\fR Invisible or blank mode \fBA_ALTCHARSET\fR Alternate character set \fBA_CHARTEXT\fR Bit-mask to extract a character \fBCOLOR_PAIR(\fR\fIn\fR\fB)\fR Color-pair number \fIn\fR .TE .PP The following macro is the reverse of \fBCOLOR_PAIR(\fR\fIn\fR\fB)\fR: .PP .br \fBPAIR_NUMBER(\fR\fIattrs\fR) Returns the pair number associated with the \fBCOLOR_PAIR(\fR\fIn\fR\fB)\fR attribute. .br .PP The return values of many of these routines are not meaningful (they are implemented as macro-expanded assignments and simply return their argument). The SVr4 manual page claims (falsely) that these routines always return \fB1\fR. .SH NOTES Note that \fBattroff\fR, \fBwattroff\fR, \fBattron\fR, \fBwattron\fR, \fBattrset\fR, \fBwattrset\fR, \fBstandend\fR and \fBstandout\fR may be macros. .PP \fBCOLOR_PAIR\fP values can only be OR'd with attributes if the pair number is less than 256. The alternate functions such as \fBcolor_set\fP can pass a color pair value directly. However, ncurses ABI 4 and 5 simply OR this value within the alternate functions. You must use ncurses ABI 6 to support more than 256 color pairs. .SH PORTABILITY These functions are supported in the XSI Curses standard, Issue 4. The standard defined the dedicated type for highlights, \fBattr_t\fR, which is not defined in SVr4 curses. The functions taking \fBattr_t\fR arguments are not supported under SVr4. .PP The XSI Curses standard states that whether the traditional functions \fBattron\fR/\fBattroff\fR/\fBattrset\fR can manipulate attributes other than \fBA_BLINK\fR, \fBA_BOLD\fR, \fBA_DIM\fR, \fBA_REVERSE\fR, \fBA_STANDOUT\fR, or \fBA_UNDERLINE\fR is "unspecified". Under this implementation as well as SVr4 curses, these functions correctly manipulate all other highlights (specifically, \fBA_ALTCHARSET\fR, \fBA_PROTECT\fR, and \fBA_INVIS\fR). .PP XSI Curses added the new entry points, \fBattr_get\fR, \fBattr_on\fR, \fBattr_off\fR, \fBattr_set\fR, \fBwattr_on\fR, \fBwattr_off\fR, \fBwattr_get\fR, \fBwattr_set\fR. These are intended to work with a new series of highlight macros prefixed with \fBWA_\fR. .PP .TS center ; l l . \fBWA_NORMAL\fR Normal display (no highlight) \fBWA_STANDOUT\fR Best highlighting mode of the terminal. \fBWA_UNDERLINE\fR Underlining \fBWA_REVERSE\fR Reverse video \fBWA_BLINK\fR Blinking \fBWA_DIM\fR Half bright \fBWA_BOLD\fR Extra bright or bold \fBWA_ALTCHARSET\fR Alternate character set .TE .PP The XSI curses standard specifies that each pair of corresponding \fBA_\fR and \fBWA_\fR-using functions operates on the same current-highlight information. .PP The XSI standard extended conformance level adds new highlights \fBA_HORIZONTAL\fR, \fBA_LEFT\fR, \fBA_LOW\fR, \fBA_RIGHT\fR, \fBA_TOP\fR, \fBA_VERTICAL\fR (and corresponding \fBWA_\fR macros for each) which this implementation does not yet support. .SH RETURN VALUE All routines return the integer \fBOK\fR on success, or \fBERR\fP on failure. .PP X/Open does not define any error conditions. .PP This implementation returns an error if the window pointer is null. The \fBwcolor_set\fP function returns an error if the color pair parameter is outside the range 0..COLOR_PAIRS-1. .SH SEE ALSO \fBcurses\fR(3X), \fBcurs_addch\fR(3X), \fBcurs_addstr\fR(3X), \fBcurs_bkgd\fR(3X), \fBcurs_printw\fR(3X) .\"# .\"# The following sets edit modes for GNU EMACS .\"# Local Variables: .\"# mode:nroff .\"# fill-column:79 .\"# End: