C语言函数—int86

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: %sn", grapherrormsg(errorcode)); 
      printf("Press any key to halt:"); 
      getch(); 
      exit(1); 
   } 
 } 
  
  
  

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