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Saturday 14 September 2013

graphdefaults example in c

Header file:
    graphics.h

Synopsis:
      void graphdefaults();
     
Description:
     graphdefaults() resets all graphics setting(view port, current, background color, drawing color, palette, fill color, fill style, text style etc)  to default values.  


graphdefaults 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, midx, midy;

        /* 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));
                getch();
                return 0;
        }

        /* mid position in x and y axis */
        midx = getmaxx() / 2;
        midy = getmaxy() / 2;

        /* sets text justification */
        settextjustify(CENTER_TEXT, CENTER_TEXT);

        /* outputs text at the given point */
        outtextxy(midx, 50, "Circle with custom settings");

        /* draw a circle using the current draw color */
        setcolor(10);
        setfillstyle(SLASH_FILL, 10);

        circle(midx, midy, 150);
        floodfill(midx, midy, 10);

        getch();

        /* restore default values for everything */
        graphdefaults();

        /* clear the screen */
        cleardevice();

        /* output line with default settings */
        settextjustify(CENTER_TEXT, CENTER_TEXT);
        outtextxy(midx, 50, "Circle with default settings");

        /* draw a circle with radius 150 */
        circle(midx, midy, 150);

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





Output: (graphdefaults built-in function in c graphics.h)


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