函数名: installuserfont

功 能: 安装未嵌入BGI系统的字体文件(CHR)

用 法: int far installuserfont(char far *name);

程序例:

#include <graphics.h>

#include <stdlib.h>

#include <stdio.h>

#include <conio.h>

/* function prototype */

void checkerrors(void);

int main(void)

{

/* request auto detection */

int gdriver = DETECT, gmode;

int userfont;

int midx, midy;

/* initialize graphics and local variables */

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

midx = getmaxx() / 2;

midy = getmaxy() / 2;

/* check for any initialization errors */

checkerrors();

/* install a user defined font file */

userfont = installuserfont("USER.CHR");

/* check for any installation errors */

checkerrors();

/* select the user font */

settextstyle(userfont, HORIZ_DIR, 4);

/* output some text */

outtextxy(midx, midy, "Testing!");

/* clean up */

getch();

closegraph();

return 0;

}

/* check for and report any graphics errors */

void checkerrors(void)

{

int errorcode;

/* read result of last graphics operation */

errorcode = graphresult();

if (errorcode != grOk)

{

printf("Graphics error: %s\", grapherrormsg(errorcode));

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

getch();

exit(1);

}

}