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;
}