dos graphics

This is a discussion on dos graphics within the C Programming forums, part of the General Programming Boards category; This program gives me nine linker errors can someone please help me sort them out: undefined symbol _setcolor undefined symbol ...

  1. #1
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    Red face dos graphics

    This program gives me nine linker errors can someone please help me sort them out:

    undefined symbol _setcolor
    undefined symbol _getmaxcolor
    undefined symbol _grapherrormsg
    undefined symbol _graphresult
    undefined symbol _initgraph...


    #include <stdlib.h>
    #include <stdio.h>
    #include <conio.h>


    int main(void)
    {
    /* request auto detection */
    int gdriver = DETECT, gmode, errorcode;
    int xmax, ymax;

    /* initialize graphics and local variables */
    initgraph(&gdriver, &gmode, "c:\\tc\\bgi");

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

    setcolor(getmaxcolor());
    xmax = getmaxx();
    ymax = getmaxy();

    /* draw a diagonal line */
    line(0, 0, xmax, ymax);

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

  2. #2
    Skunkmeister Stoned_Coder's Avatar
    Join Date
    Aug 2001
    Posts
    2,572
    from my bgi days I think those functions are in <graphics.h> so you will need to include that too.
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

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