X-Git-Url: https://ncurses.scripts.mit.edu/?a=blobdiff_plain;ds=sidebyside;f=doc%2Fhtml%2Fman%2Fcurs_slk.3x.html;h=1e4f954b474dc050e727d211e44b2a7ca0425b05;hb=a816c8dae437106bbf1661304240ff568ae3efef;hp=deeabf55cb6108caeea082ce6aae4940e9287c03;hpb=761e4f0825b330e970558e82a4bd638383914429;p=ncurses.git diff --git a/doc/html/man/curs_slk.3x.html b/doc/html/man/curs_slk.3x.html index deeabf55..1e4f954b 100644 --- a/doc/html/man/curs_slk.3x.html +++ b/doc/html/man/curs_slk.3x.html @@ -1,7 +1,7 @@ - - +
+ +- -curs_slk(3x) curs_slk(3x) +curs_slk(3x) curs_slk(3x) --
- slk_init, slk_set, slk_wset, slk_refresh, slk_noutrefresh, - slk_label, slk_clear, slk_restore, slk_touch, slk_attron, - slk_attrset, slk_attroff, slk_attr_on, slk_attr_set, - slk_attr_off, slk_attr, slk_color - curses soft label - routines +
+ slk_init, slk_set, slk_wset, slk_refresh, slk_noutrefresh, slk_label, + slk_clear, slk_restore, slk_touch, slk_attron, slk_attrset, + slk_attroff, slk_attr_on, slk_attr_set, slk_attr_off, slk_attr, + slk_color, extended_slk_color - curses soft label routines --
+
#include <curses.h> - int slk_init(int fmt); - int slk_set(int labnum, const char *label, int fmt); + int slk_init(int fmt); + + int slk_set(int labnum, const char *label, int fmt); + /* extension */ + int slk_wset(int labnum, const wchar_t *label, int fmt); + + char *slk_label(int labnum); + int slk_refresh(void); int slk_noutrefresh(void); - char *slk_label(int labnum); int slk_clear(void); int slk_restore(void); int slk_touch(void); - int slk_attron(const chtype attrs); - int slk_attroff(const chtype attrs); - int slk_attrset(const chtype attrs); - int slk_attr_on(attr_t attrs, void* opts); - int slk_attr_off(const attr_t attrs, void * opts); - int slk_attr_set(const attr_t attrs, short color_pair, - void* opts); + + int slk_attron(const chtype attrs); + int slk_attroff(const chtype attrs); + int slk_attrset(const chtype attrs); + int slk_attr_on(attr_t attrs, void* opts); + int slk_attr_off(const attr_t attrs, void * opts); + int slk_attr_set(const attr_t attrs, short pair, void* opts); + attr_t slk_attr(void); - int slk_color(short color_pair); - int slk_wset(int labnum, const wchar_t *label, int fmt); + int slk_color(short pair); + /* extension */ + int extended_slk_color(int pair); --
- The slk* functions manipulate the set of soft function-key - labels that exist on many terminals. For those terminals - that do not have soft labels, curses takes over the bottom - line of stdscr, reducing the size of stdscr and the vari- - able LINES. curses standardizes on eight labels of up to - eight characters each. In addition to this, the ncurses - implementation supports a mode where it simulates 12 la- - bels of up to five characters each. This is useful for - today's PC-like enduser devices. ncurses simulates this - mode by taking over up to two lines at the bottom of the - screen; it does not try to use any hardware support for - this mode. - The slk_init routine must be called before initscr or - newterm is called. If initscr eventually uses a line from - stdscr to emulate the soft labels, then fmt determines how - the labels are arranged on the screen: +
+ The slk* functions manipulate the set of soft function-key labels that + exist on many terminals. For those terminals that do not have soft la- + bels, curses takes over the bottom line of stdscr, reducing the size of + stdscr and the variable LINES. curses standardizes on eight labels of + up to eight characters each. In addition to this, the ncurses imple- + mentation supports a mode where it simulates 12 labels of up to five + characters each. This is useful for PC-like enduser devices. ncurses + simulates this mode by taking over up to two lines at the bottom of the + screen; it does not try to use any hardware support for this mode. - 0 indicates a 3-2-3 arrangement of the labels. - 1 indicates a 4-4 arrangement +
+ The slk_init routine must be called before initscr or newterm is + called. If initscr eventually uses a line from stdscr to emulate the + soft labels, then fmt determines how the labels are arranged on the + screen: - 2 indicates the PC-like 4-4-4 mode. + 0 indicates a 3-2-3 arrangement of the labels. - 3 is again the PC-like 4-4-4 mode, but in addition - an index line is generated, helping the user to - identify the key numbers easily. + 1 indicates a 4-4 arrangement - The slk_set routine (and the slk_wset routine for the - wide-character library) has three parameters: + 2 indicates the PC-like 4-4-4 mode. - labnum - is the label number, from 1 to 8 (12 for fmt - in slk_init is 2 or 3); + 3 is again the PC-like 4-4-4 mode, but in addition an index line is + generated, helping the user to identify the key numbers easily. - label - is be the string to put on the label, up to - eight (five for fmt in slk_init is 2 or 3) - characters in length. A null string or a null - pointer sets up a blank label. - fmt is either 0, 1, or 2, indicating whether the - label is to be left-justified, centered, or - right-justified, respectively, within the la- - bel. +
+ The slk_set routine (and the slk_wset routine for the wide-character + library) has three parameters: - The slk_refresh and slk_noutrefresh routines correspond to - the wrefresh and wnoutrefresh routines. + labnum + is the label number, from 1 to 8 (12 for fmt in slk_init is 2 + or 3); - The slk_label routine returns the current label for label - number labnum, with leading and trailing blanks stripped. + label + is be the string to put on the label, up to eight (five for fmt + in slk_init is 2 or 3) characters in length. A null string or + a null pointer sets up a blank label. - The slk_clear routine clears the soft labels from the - screen. + fmt is either 0, 1, or 2, indicating whether the label is to be + left-justified, centered, or right-justified, respectively, + within the label. - The slk_restore routine restores the soft labels to the - screen after a slk_clear has been performed. + The slk_label routine returns the current label for label number lab- + num, with leading and trailing blanks stripped. - The slk_touch routine forces all the soft labels to be - output the next time a slk_noutrefresh is performed. - The slk_attron, slk_attrset, slk_attroff and slk_attr rou- - tines correspond to attron, attrset, attroff and attr_get. - They have an effect only if soft labels are simulated on - the bottom line of the screen. The default highlight for - soft keys is A_STANDOUT (as in System V curses, which does - not document this fact). +
+ The slk_refresh and slk_noutrefresh routines correspond to the wrefresh + and wnoutrefresh routines. - The slk_color routine corresponds to color_set. It has an - effect only if soft labels are simulated on the bottom - line of the screen. + The slk_clear routine clears the soft labels from the screen. + The slk_restore routine restores the soft labels to the screen after a + slk_clear has been performed. --
- These routines return ERR upon failure and OK (SVr4 speci- - fies only "an integer value other than ERR") upon success- - ful completion. + The slk_touch routine forces all the soft labels to be output the next + time a slk_noutrefresh is performed. - X/Open defines no error conditions. In this implementa- - tion - slk_attr - returns the attribute used for the soft keys. +
+ The slk_attron, slk_attrset, slk_attroff and slk_attr routines corre- + spond to attron, attrset, attroff and attr_get, respectively. They + have an effect only if soft labels are simulated on the bottom line of + the screen. The default highlight for soft keys is A_STANDOUT (as in + System V curses, which does not document this fact). - slk_attroff, slk_attron, slk_clear, - slk_noutrefresh, slk_refresh, slk_touch - return an error if the terminal or the soft- - keys were not initialized. - slk_attrset - returns an error if the terminal or the soft- - keys were not initialized. +
+ The slk_color routine corresponds to color_set. It has an effect only + if soft labels are simulated on the bottom line of the screen. - slk_attr_set - returns an error if the terminal or the soft- - keys were not initialized, or the color pair - is outside the range 0..COLOR_PAIRS-1, or opts - is not null. + Because slk_color accepts only short (signed 16-bit integer) values, + this implementation provides extended_slk_color which accepts an inte- + ger value, e.g., 32-bits. - slk_color - returns an error if the terminal or the soft- - keys were not initialized, or the color pair - is outside the range 0..COLOR_PAIRS-1. - slk_init - returns an error if the format parameter is - outside the range 0..3. +
+ These routines return ERR upon failure and OK (SVr4 specifies only "an + integer value other than ERR") upon successful completion. - slk_label - returns NULL on error. + X/Open defines no error conditions. In this implementation - slk_set - returns an error if the terminal or the soft- - keys were not initialized, or the labnum pa- - rameter is outside the range of label counts, - or if the format parameter is outside the - range 0..2, or if memory for the labels cannot - be allocated. + slk_attr + returns the attribute used for the soft keys. + slk_attroff, slk_attron, slk_clear, slk_noutrefresh, slk_refresh, + slk_touch + return an error if the terminal or the softkeys were not ini- + tialized. --
- Most applications would use slk_noutrefresh because a wre- - fresh is likely to follow soon. + slk_attrset + returns an error if the terminal or the softkeys were not ini- + tialized. + slk_attr_set + returns an error if the terminal or the softkeys were not ini- + tialized, or the color pair is outside the range 0..COL- + OR_PAIRS-1. --
- The XSI Curses standard, Issue 4, describes these func- - tions. It changes the argument type of the attribute-ma- - nipulation functions slk_attron, slk_attroff, slk_attrset - to be attr_t, and adds const qualifiers. The format codes - 2 and 3 for slk_init() and the function slk_attr are spe- - cific to ncurses. + slk_color + returns an error if the terminal or the softkeys were not ini- + tialized, or the color pair is outside the range 0..COL- + OR_PAIRS-1. + slk_init + returns an error if the format parameter is outside the range + 0..3. --
- curses(3x), curs_attr(3x), curs_initscr(3x), curs_re- - fresh(3x), curs_variables(3x). + slk_label + returns NULL on error. + + slk_set + returns an error if the terminal or the softkeys were not ini- + tialized, or the labnum parameter is outside the range of label + counts, or if the format parameter is outside the range 0..2, + or if memory for the labels cannot be allocated. + + +
+ SVr3 introduced these functions: + slk_clear + slk_init + slk_label + slk_noutrefresh + slk_refresh + slk_restore + slk_set + slk_touch + + SVr4 added these functions: + slk_attroff + slk_attron + slk_attrset + slk_start + + X/Open Curses added these: + slk_attr_off + slk_attr_on + slk_attr_set + slk_color + slk_wset + + +
+ X/Open Curses documents the opts argument as reserved for future use, + saying that it must be null. This implementation uses that parameter + in ABI 6 for the functions which have a color-pair parameter to support + extended color pairs. + + For functions which modify the color, e.g., slk_attr_set, if opts is + set it is treated as a pointer to int, and used to set the color + pair instead of the short pair parameter. + + +
+ Most applications would use slk_noutrefresh because a wrefresh is like- + ly to follow soon. + + +
+ The XSI Curses standard, Issue 4, described the soft-key functions, + with some differences from SVr4 curses: + + o It added functions like the SVr4 attribute-manipulation functions + slk_attron, slk_attroff, slk_attrset, but which use attr_t parame- + ters (rather than chtype), along with a reserved opts parameter. + + Two of these new functions (unlike the SVr4 functions) have no pro- + vision for color: slk_attr_on and slk_attr_off. + + The third function (slk_attr_set) has a color-pair parameter. + + o It added const qualifiers to parameters (unnecessarily), and + + o It added slk_color. + + The format codes 2 and 3 for slk_init and the function slk_attr are + specific to ncurses. + + X/Open Curses does not specify a limit for the number of colors and + color pairs which a terminal can support. However, in its use of short + for the parameters, it carries over SVr4's implementation detail for + the compiled terminfo database, which uses signed 16-bit numbers. This + implementation provides extended versions of those functions which use + short parameters, allowing applications to use larger color- and pair- + numbers. + + +
+ curses(3x), curs_attr(3x), curs_initscr(3x), curs_refresh(3x), + curs_variables(3x). - curs_slk(3x) + curs_slk(3x)-