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;

}