画二维条码

 

 

/* request auto detection */
int gdriver = DETECT, gmode, errorcode;
int midx, midy, i;

/* initialize graphics and local variables */
initgraph ( &gdriver, &gmode, "" );

/* read result of initialization */
errorcode = graphresult();
if ( errorcode != grOk )  /* an error occurred */
{
    printf ( "Graphics error: %s\n", grapherrormsg ( errorcode ) );
    printf ( "Press any key to halt:" );
    getch();
    exit ( 1 ); /* terminate with an error code */
}

midx = getmaxx() / 2;
midy = getmaxy() / 2;

/* loop through the fill patterns */
for ( i=SOLID_FILL; i<USER_FILL; i++ )
{
    /* set the fill style */
    setfillstyle ( i, getmaxcolor() );

    /* draw the bar */
    bar ( midx-50, midy-50, midx+50,
          midy+50 );

    getch();
}

/* clean up */
closegraph();
return 0;

转自：云代码