getfillpattern

函数名: getfillpattern

功 能: 将用户定义的填充模式拷贝到内存中

用 法: void far getfillpattern(char far *upattern);

程序例:

#include

#include

#include

#include

int main(void)

{

/* request auto detection */

int gdriver = DETECT, gmode, errorcode;

int maxx, maxy;

char pattern[8] = {0x00, 0x70, 0x20, 0x27, 0x25, 0x27, 0x04, 0x04};

/* initialize graphics and local variables */

initgraph(&gdriver, &gmode, "");

/* read result of initialization */

errorcode = graphresult();

if (errorcode != grOk) /* an error occurred */

{

printf("Graphics error: %s

", grapherrormsg(errorcode));

printf("Press any key to halt:");

getch();

exit(1); /* terminate with an error code */

}

maxx = getmaxx();

maxy = getmaxy();

setcolor(getmaxcolor());

/* select a user defined fill pattern */

setfillpattern(pattern, getmaxcolor());

/* fill the screen with the pattern */

bar(0, 0, maxx, maxy);

getch();

/* get the current user defined fill pattern */

getfillpattern(pattern);

/* alter the pattern we grabbed */

pattern[4] -= 1;

pattern[5] -= 3;

pattern[6] += 3;

pattern[7] -= 4;

/* select our new pattern */

setfillpattern(pattern, getmaxcolor());

/* fill the screen with the new pattern */

bar(0, 0, maxx, maxy);

/* clean up */

getch();

closegraph();

return 0;

}