moverel

Syntax

#include <graphics.h>

void moverel(int dx, int dy);

Description

moverel moves the current position (CP) dx pixels in the x direction and dy pixels in the y direction.

Return Value

None.

See also

moveto

Example

/* moverel example */ 



#include <graphics.h>

#include <stdlib.h>

#include <stdio.h>

#include <conio.h>



int main(void)

{

   /* request autodetection */

   int gdriver = DETECT, gmode, errorcode;

   char msg[80];



   /* 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 */

   }



   /* move the CP to location (20,30) */

   moveto(20,30);



   /* plot a pixel at the CP */

   putpixel(getx(), gety(), getmaxcolor());



   /* create and output a message at (20,30) */

   sprintf(msg, " (%d, %d)", getx(), gety());

   outtextxy(20,30, msg);



   /* move to a point a relative distance away from the current CP */

   moverel(100, 100);





   /* plot a pixel at the CP */

   putpixel(getx(), gety(), getmaxcolor());



   /* create and output a message at CP */

   sprintf(msg, " (%d, %d)", getx(), gety());

   outtext(msg);



   /* clean up */

   getch();

   closegraph();

   return 0;

}