KDK_SYSTEM_SET_DATEFORMAT(3)                          Library Functions Manual

NAME
       kdk_system_set_dateformat - <?><?><?><?><?><?>

SYNOPSIS
       #include <libkydate.h>

       extern int kdk_system_set_dateformat(char *date);

       Link with -lkydate.

Detailed Description
       The main function of this interface is to set the date format of the
       system.

       The argument date is the date format, Please refer to the return value
       of kdk_system_get_format for specific format.

RETURN VALUE
       On success, returns 1

       On error, return -1.

EXAMPLES
       #include "libkydate.h"
       #include <stdio.h>
       #include <stdlib.h>
       #include <string.h>
       #include <time.h>
       #include <stdlib.h>
       #include <glib.h>
       #include <glib-object.h>

       int main()
       {
            int ret = kdk_system_set_long_dateformat("2230<?>3<?>4<?>");
            ret = kdk_system_set_short_dateformat("22/5/3");

            char *ld = kdk_system_get_longformat_date();
            printf("long res = %s0, ld);
            free(ld);

            char *sd = kdk_system_get_shortformat_date();
            printf("short res = %s0, sd);
            free(sd);

            char *ll = kdk_system_get_longformat();
            printf("longformat = %s0, ll);
            free(ll);

            char *ss = kdk_system_get_shortformat();
            printf("shortformat = %s0, ss);
            free(ss);

            struct tm ptr;

            ptr.tm_year = 2322;
            ptr.tm_mon = 9;
            ptr.tm_mday = 3;

            char *lt = kdk_system_longformat_transform(&ptr);
            printf("longformat_transform = %s0, lt);
            free(lt);

            ptr.tm_year = 2022;
            ptr.tm_mon = 3;
            ptr.tm_mday = 2;

            char *st = kdk_system_shortformat_transform(&ptr);
            printf("shortformat_transform = %s0, st);
            free(st);

            kdk_logn_dateinfo *info = kdk_system_login_lock_dateinfo("szm");
            printf("date = %s,time = %s,week = %s0,info->date,info->time,info->week);
            kdk_free_logn_dateinfo(info);

            ptr.tm_hour = 19;
            ptr.tm_min = 3;
            ptr.tm_sec = 2;
            kdk_timeinfo *ti = kdk_system_timeformat_transform(&ptr);
            printf("time = %s, timesec = %s0, ti->time, ti->timesec);
            kdk_free_timeinfo(ti);

           return 0;
       }


CONFORMING TO
       These functions are as per the withdrawn POSIX.1e draft specification.
       The following functions are Linux extensions:
       kdk_system_get_dateformat(), kdk_system_set_dateformat(),
       kdk_system_set_24_timeformat(), kdk_system_set_12_timeformat(),
       kdk_system_get_now_dateformat(), kdk_system_get_now_timeformat(),
       kdk_system_tran_dateformat(), kdk_system_nowtime(),
       kdk_system_nowdate(), kdk_system_shortweek(), kdk_system_longweek(),
       kdk_system_second(), kdk_system_logn_dateinfo(), kdk_system_gjx_time(),
       kdk_date_freeall(), kdk_free_dateinfo(), kdk_free_logn_dateinfo(),
       kdk_system_set_long_dateformat(), kdk_system_set_short_dateformat(),
       kdk_system_get_longformat_date(), kdk_system_get_shortformat_date(),
       kdk_system_get_longformat(), kdk_system_get_shortformat(),
       kdk_system_longformat_transform(), kdk_system_shortformat_transform(),
       kdk_system_login_lock_dateinfo(), kdk_system_timeformat_transform() and
       kdk_free_timeinfo().


SEE ALSO
       kdk_system_get_dateformat(3), kdk_system_set_dateformat(3),
       kdk_system_set_24_timeformat(3), kdk_system_set_12_timeformat(3),
       kdk_system_get_now_dateformat(3), kdk_system_get_now_timeformat(3),
       kdk_system_tran_dateformat(3), kdk_system_nowtime(3),
       kdk_system_nowdate(3), kdk_system_shortweek(3), kdk_system_longweek(3),
       kdk_system_second(3), kdk_system_logn_dateinfo(3),
       kdk_system_gjx_time(3), kdk_date_freeall(3), kdk_free_dateinfo(3),
       kdk_free_logn_dateinfo(3), kdk_system_set_long_dateformat(3),
       kdk_system_set_short_dateformat(3), kdk_system_get_longformat_date(3),
       kdk_system_get_shortformat_date(3), kdk_system_get_longformat(3),
       kdk_system_get_shortformat(3), kdk_system_longformat_transform(3),
       kdk_system_shortformat_transform(3), kdk_system_login_lock_dateinfo(3),
       kdk_system_timeformat_transform(3) and kdk_free_timeinfo(3).

Linux Programmer's Manual       Tue Sep 19 2023   KDK_SYSTEM_SET_DATEFORMAT(3)