簡介
函式名: graphdefaults
示例
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
int main(void)
{
/* request auto detection */
int gdriver = DETECT, gmode, errorcode;
int maxx, maxy;
/* initialize graphics and local variables */
initgraph(&gdriver, &gmode, "c:\\bor\\Borland\\bgi");
/* 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 non-default 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;
}
