NAME

kdk_edid_get_visible_area - 获取显示器的可视面积

SYNOPSIS

#include <libkyedid.h>

extern char* kdk_edid_get_visible_area(char *name);

Link with -lkyedid.

Detailed Description

The main function of the interface is to obtain the visible area of the screen.

The argument name is the current interface of the screen.

RETURN VALUE

On success, returns the screen visible area of type char*; The returned string needs to be released by free

On error, return NULL.

EXAMPLES

#include "libkyedid.h"
#include <stdio.h>
#include <stdlib.h>
int main()
{
    char** name = kdk_edid_get_interface();
    size_t count = 0;
    while (name[count])
    {
        printf("当前接口 = %s0, name[count]);
        float gamma = kdk_edid_get_gamma(name[count]);
        printf("gamma = %0.2f0, gamma);
        float size = kdk_edid_get_size(name[count]);
        printf("size = %0.1f0, size);
        char *max_resolution = kdk_edid_get_max_resolution(name[count]);
        printf("max_resolution = %s0, max_resolution);
        free(max_resolution);
        char *model = kdk_edid_get_model(name[count]);
        printf("model = %s0, model);
        free(model);
        char *area = kdk_edid_get_visible_area(name[count]);
        printf("area = %s0, area);
        free(area);
        char *manufacturer = kdk_edid_get_manufacturer(name[count]);
        printf("manufacturer = %s0, manufacturer);
        free(manufacturer);
        int week = kdk_edid_get_week(name[count]);
        printf("week = %d0, week);
        int year = kdk_edid_get_year(name[count]);
        printf("year = %d0, year);
        int primary = kdk_edid_get_primary(name[count]);
        printf("%s0, primary == 1 ? "是" : "否");
        char *resolution = kdk_edid_get_resolution(name[count]);
        printf("resolution = %s0, resolution);
        free(resolution);
        char *ratio = kdk_edid_get_ratio(name[count]);
        printf("ratio = %s0, ratio);
        free(ratio);
        char *character = kdk_edid_get_character(name[count]);
        printf("character = %s0, character);
        free(character);
        printf("---------------------------------------0);
        count ++;
    }
    kdk_edid_freeall(name);
    return 0;
}

CONFORMING TO

These functions are as per the withdrawn POSIX.1e draft specification. The following functions are Linux extensions: kdk_edid_get_interface(), kdk_edid_get_gamma(), kdk_edid_get_size(), kdk_edid_get_max_resolution(), kdk_edid_get_model(), kdk_edid_get_manufacturer(), kdk_edid_get_week(), kdk_edid_get_year(), kdk_edid_get_primary(), kdk_edid_get_resolution(), kdk_edid_get_ratio(), kdk_edid_get_character() and kdk_edid_freeall().