graphdefaults

Syntax

#include <graphics.h>
void graphdefaults(void);

Description

graphdefaults resets all graphics settings to their defaults:

• sets the viewport to the entire screen.
• moves the current position to (0,0).
• sets the default palette colors, background color, and drawing color.
• sets the default fill style and pattern.
• sets the default text font and justification.

Return Value

None.

See also

initgraph

setgraphmode

Example

/* graphdefaults example */ 

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

int main(void)
{
   /* request autodetection */
   int gdriver = DETECT, gmode, errorcode;
   int maxx, maxy;

   /* 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 */
   }

   maxx = getmaxx();
   maxy = getmaxy();

   /* output line with nondefault settings */
   setlinestyle(DOTTED_LINE, 0, 3);
   line(0, 0, maxx, maxy);
   outtextxy(maxx/2, maxy/3, "Before default values are restored.");
   getch();

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

   /* clear the screen */
   cleardevice();



   /* output line with default settings */
   line(0, 0, maxx, maxy);
   outtextxy(maxx/2, maxy/3, "After restoring default values.");

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