eg_pgcp.c

开放源码的编译器open watcom 1.6.0版的源代码

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

#if defined ( __386__ )
    #define _FAR
#else
    #define _FAR    __far
#endif

#define NUM_VALUES 4

char _FAR *categories[ NUM_VALUES ] = {
    "Jan", "Feb", "Mar", "Apr"
};

float values[ NUM_VALUES ] = {
    20, 45, 30, 25
};

short explode[ NUM_VALUES ] = {
    1, 0, 0, 0
};

main()
{
    chartenv env;

    _setvideomode( _VRES16COLOR );
    _pg_initchart();
    _pg_defaultchart( &env,
		      _PG_PIECHART, _PG_NOPERCENT );
    strcpy( env.maintitle.title, "Pie Chart" );
    _pg_chartpie( &env, categories,
		  values, explode, NUM_VALUES );
    getch();
    _setvideomode( _DEFAULTMODE );
}