cleardevice example in C

Header file:

    graphics.h

Synopsis:

     void cleardevice (void);

Description:

      cleardevice() clears the whole graphic screen and resets the current position to (0,0).

cleardevice function in c graphics

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

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

        /* 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;
        }

        x = getmaxx() / 2;
        y = getmaxy() / 2;

        /* output a message to the screen */
        circle(x, y, 100);
        delay(700);

        setcolor(10);
        settextjustify(CENTER_TEXT, CENTER_TEXT);

        /* prints CLEAR SCREEN at the given position(x, y) */
        outtextxy(x, y, "CLEAR SCREEN");
        delay(700);

        /* clears the screen */

        cleardevice();

        getch();

        /* deallocates memory allocated for graphic screen */

        closegraph();

        return 0;

  }

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

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