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Wednesday, 11 September 2013

getdefaultpalette example in c

Header file:
    graphics.h

Synopsis:
      struct palettetype * getdefaultpalette(void);
     struct palettetype {
        unsigned char size; /* no of colors in the palette */
        signed char colors[MAXCOLORS + 1]; /* contains color nos corresponds to colors in the palette */
     }

Description:
     getdefaultpalette() returns palette information for the current graphic driver.



getdefaultpalette function in c graphics



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

  int main(void) {
        /* request auto detection */
        int graphicDriver = DETECT, graphicMode;
        int err, i;

        /* structure for returning palette copy */
        struct palettetype far *palette = NULL;

        /* initialize graphics and local variables */
        initgraph(&graphicDriver, &graphicMode,
                                        "C:/TURBOC3/BGI");

        /* read result of initialization */
        err = graphresult();

        if (err != grOk) {
                /* an error occurred */
                printf("Graphic Error: %s\n",
                                grapherrormsg(err));
                return 0;
        }

        setcolor(12);

        /* return a pointer to the default palette */
        palette = getdefaultpalette();

        for (i=0; i<16; i++) {
                printf("colors[%d] = %d\n", i, palette->colors[i]);
        }

        getch();

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





Output: (getdefaultpalette function in c graphics.h)


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