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 _pg_hlabelchart()       Write horizontal chart label

 #include   <pgchart.h>

 short _pg_hlabelchart(env, x, y, color, label);
 chartenv _far *env;    Chart environment
 short x;               X coordinate (pixels)
 short y;               Y coordinate (pixels)
 short color;           Color index for text
 char _far *label;      Label to write

    _pg_hlabelchart() writes a horizontal label, as stored in the string
    label on the screen starting at pixel (x, y) relative to the upper
    left of the chart window. It is valuable for placing labels anywhere
    you need them on a chart. In the following example, we label the two
    lines in a multiseries line chart.

    Returns:         0 for success; nonzero otherwise.

    Portability:     MS-DOS only, true MDPA, CGA, EGA, MCGA, or VGA video
                     compatibles

   -------------------------------- Example ---------------------------------

    This program puts a variety of Presentation Graphics charts on the
    screen.

    #include <conio.h>
    #include <string.h>
    #include <stdlib.h>
    #include <graph.h>
    #include <pgchart.h>

    float _far my2data[2][4] = {{45.0,  52.0,  61.0,   35.0},
                                {53.0,  41.0,  41.0,   43.0}};
    char  _far *months[4] =  {"April",  "May", "June", "July"};
    char  _far *nations[2] = { "USA", "USSR" };
    float _far my1data[4] =    {45.0,  52.0,  61.0,   35.0};
    float _far Peanuts[4]  = {123.0, 134.0, 432.0, 345.0};
    float _far Soybeans[4] = {322.0, 321.0, 524.0, 331.0};
    char  _far *catgs[4] = { "USA", "UK", "USSR", "DDR" };
    short _far explode[5] = {0, 0, 1, 0, 0 };

    void main()
    {
        fillmap myfil = { 0x99, 0x33, 0x66, 0xCC, 0x99, 0x33, 0x66, 0xCC };
            palettetype mypal;
        styleset mystyle;
        chartenv myenv;

        _setvideomode(_MAXRESMODE); /* Set style */
        _pg_initchart();
        _pg_getstyleset(mystyle);
        mystyle[1] = 0x5050;
        _pg_setstyleset(mystyle);
        _pg_defaultchart(&myenv, _PG_BARCHART, _PG_PLAINBARS);
        strcpy(myenv.maintitle.title, "Soybean Consumption");
        _pg_chartms(&myenv,months,(float _far *)my2data,2,4,4,nations);
        getch();

        _pg_getpalette(mypal);      /* Set palette */
        memcpy(mypal[1].fill, myfil, 8);
        mypal[1].plotchar = 16;
        mypal[1].color = 3;
        mypal[1].style = 0x5A5A;
        _pg_setpalette(mypal);

        _pg_defaultchart(&myenv, _PG_LINECHART, _PG_POINTANDLINE);
        strcpy(myenv.maintitle.title, "Soybean Consumption");
        _pg_chartms(&myenv,months,(float _far *)my2data,2,4,4,nations);
        _pg_hlabelchart(&myenv, (short)(myenv.chartwindow.x2 * .77F),
                        (short)(myenv.chartwindow.y2 * .30F), 13, "USSR");
        _pg_vlabelchart(&myenv, (short)(myenv.chartwindow.x2 * .77F),
                        (short)(myenv.chartwindow.y2 * .50F), 12, "USA");
        getch();
        _clearscreen(_GCLEARSCREEN);

        _pg_resetpalette();           /* Default palette  */
        _pg_resetstyleset();          /* Default styleset */

        _pg_defaultchart(&myenv, _PG_PIECHART, _PG_PERCENT);
        strcpy(myenv.maintitle.title, "Soybean Consumption");
        _pg_chartpie(&myenv, catgs, my1data, explode, 4);
        getch();
        _clearscreen(_GCLEARSCREEN);

        _pg_defaultchart(&myenv, _PG_COLUMNCHART, _PG_PLAINBARS);
        strcpy(myenv.maintitle.title, "Soybean Consumption");
        _pg_chart(&myenv, catgs, my1data, 4);
        getch();
        _clearscreen(_GCLEARSCREEN);

        _pg_defaultchart (&myenv, _PG_SCATTERCHART, _PG_POINTONLY);
        strcpy(myenv.maintitle.title, "Soybeans vs. Peanuts");
        strcpy(myenv.xaxis.axistitle.title, "Peanuts");
        strcpy(myenv.yaxis.axistitle.title, "Soybeans");
        _pg_chartscatter(&myenv, Peanuts, Soybeans, 4);
        getch();
        _clearscreen(_GCLEARSCREEN);

        _setvideomode(_DEFAULTMODE);
    }